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Bugs fixed: - Bug #20877: InnoDB data dictionary memory footprint is too big - Bug #13544: Second delete of same row in transaction illustrates non-optimal locking - Bug #20791: valgrind errors in InnoDB storage/innobase/btr/btr0btr.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r823: Minor cleanup related to Bug #20877. btr_print_recursive(): Replace tree->tree_indexes with tree->index. This should have been done in r453. univ.i: Add UNIV_BTR_PRINT. rw_lock_t: Reduce writer_is_wait_ex to a bit and move it close to other bitfields. Change the types to unsigned, in case ulint or ibool bitfields will not work. Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/btr/btr0cur.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r816: Remove more remnants of mixed indexes. Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r830: page_align(ptr): New utility function to replace ut_align_down(ptr, UNIV_PAGE_SIZE) calls. Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/btr/btr0pcur.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r830: page_align(ptr): New utility function to replace ut_align_down(ptr, UNIV_PAGE_SIZE) calls. Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/btr/btr0sea.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r816: Remove more remnants of mixed indexes. Revision r824: Reduce the size of btr_search_t from 13 machine words to 7. This structure is reserved for every index in the data dictionary cache. (Bug #20877) We could shrink the structure further to three 32-bit words or two 64-bit words by turning the remaining fields to bit-fields. Unfortunately, the fields are not protected by any mutex, and thus we would better keep each field aligned to a machine word. btr_search_t, buf_block_t: Rename "ulint side" to "ibool left_side". Remove BTR_SEARCH_LEFT_SIDE and BTR_SEARCH_RIGHT_SIDE, and also rename some local variables and function parameters from "ulint side" to "ibool left_side". btr_search_t: Remove the unused fields last_search, n_direction, direction, and modify_clock. Remove the unused constants BTR_SEA_NO_DIRECTION, BTR_SEA_LEFT, BTR_SEA_RIGHT, and BTR_SEA_SAME_REC. btr_search_t: Remove magic_n unless #defined UNIV_DEBUG. Turn an assertion about the magic number into a debug assertion. Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/buf/buf0buf.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r824: Reduce the size of btr_search_t from 13 machine words to 7. This structure is reserved for every index in the data dictionary cache. (Bug #20877) We could shrink the structure further to three 32-bit words or two 64-bit words by turning the remaining fields to bit-fields. Unfortunately, the fields are not protected by any mutex, and thus we would better keep each field aligned to a machine word. btr_search_t, buf_block_t: Rename "ulint side" to "ibool left_side". Remove BTR_SEARCH_LEFT_SIDE and BTR_SEARCH_RIGHT_SIDE, and also rename some local variables and function parameters from "ulint side" to "ibool left_side". btr_search_t: Remove the unused fields last_search, n_direction, direction, and modify_clock. Remove the unused constants BTR_SEA_NO_DIRECTION, BTR_SEA_LEFT, BTR_SEA_RIGHT, and BTR_SEA_SAME_REC. btr_search_t: Remove magic_n unless #defined UNIV_DEBUG. Turn an assertion about the magic number into a debug assertion. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/buf/buf0flu.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/buf/buf0lru.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/buf/buf0rea.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/data/data0data.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/data/data0type.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r816: Remove more remnants of mixed indexes. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. storage/innobase/dict/dict0boot.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r816: Remove more remnants of mixed indexes. Revision r827: Make dict_index_find_cols() always succeed. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/dict/dict0crea.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r816: Remove more remnants of mixed indexes. Revision r827: Make dict_index_find_cols() always succeed. Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r833: Tweak the bit-field definitions introduced since r813 to address Bug #20877. rw_lock_t: Do not make writer_is_wait_ex a bit-field. There are no fields yet that could be fused to the same machine word, but we play it safe, because the field writer_is_wait_ex may be modified by several threads simultaneously. Such fields should always be allocated an own machine word. dict_table_t: Change the type of all bit-fields to "unsigned". Make "space" a bit-field of 32 bits. Move name_hash and id_hash after all bit-fields, so that the bit-fields can be allocated together. Do not make autoinc_inited a bit-field, as we cannot allocate any field from the same machine word. dict_build_table_def_step(): Pass a local variable to fil_create_new_single_table_tablespace() and initialize table->space from it after the call, now that table->space is a bit-field. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/dict/dict0dict.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r816: Remove more remnants of mixed indexes. Revision r818: Remove dict_col_t::hash, dict_col_t::table, dict_sys->col_hash, and DICT_POOL_PER_COL_HASH. (Bug #20877) The col->table pointer was only needed for maintaining a hash table of all defined columns in all tables. The hash table was only looked up in dict_index_find_cols(). Removing the col->hash and col->table pointers reduces the size of a table column by two machine words (usually 8 or 16 bytes). dict_col_add_to_cache(), dict_col_reposition_in_cache(), dict_col_remove_from_cache(): Remove. These only updated dict_sys->col_hash. dict_index_find_cols(): Use a linear search instead of the hash table. The time complexity is affected, but this function is only invoked by dict_index_add_to_cache(), and we only search the columns of a single table (typically at most a few dozen) as opposed to all columns of all tables. Revision r819: dict_col_t: Reduce ord_part to one bit. dict_index_add_to_cache(): Instead of incrementing ord_part, set it. dict_index_remove_from_cache(): Do not touch ord_part. dtype_t: Reduce mbminlen from 3 to 2 bits. row_upd(): Add a UNIV_LIKELY hint around node->in_mysql_interface. Revision r820: Remove dict_col_t::clust_pos. dict_col_get_clust_pos(): Add parameter clust_index. Replace the look-up with a linear search of all columns in the clustered index. row_upd_index_replace_new_col_vals(): Compute clust_index outside the loops. Compute clust_pos outside the inner loop. row_upd_changes_ord_field_binary(), row_upd_changes_first_fields_binary(): Compute clust_index outside the loops. Declare the auxiliary variables inside the loop scope. Revision r821: dict_table_t: Rename the integer field max_row_size to the Boolean field big_rows. (Bug #20877) BIG_ROW_SIZE: Move the definition from row0sel.c to dict_table_add_to_cache(). Revision r826: The code base was reindented in r763 and automatic .emacs indentation settings introduced. Some problems were found, so from this commit on one additional indentation rule is introduced: (add-to-list 'c-offsets-alist '(arglist-intro . +)) Note that fixing some of the unfortunate line-splits done in r764 will be done in a future change. Revision r827: Make dict_index_find_cols() always succeed. Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r831: Add dict_col_get_clust_pos_noninline(), which was forgotten from r820. Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r836: Remove dict_col_t::name, replace it with a packed array of column names in dict_table_t. This saves 8-15+ bytes of memory per column on 64-bit machines. Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. Revision r845: Split long lines with [] operators better. storage/innobase/dict/dict0load.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/dict/dict0mem.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r818: Remove dict_col_t::hash, dict_col_t::table, dict_sys->col_hash, and DICT_POOL_PER_COL_HASH. (Bug #20877) The col->table pointer was only needed for maintaining a hash table of all defined columns in all tables. The hash table was only looked up in dict_index_find_cols(). Removing the col->hash and col->table pointers reduces the size of a table column by two machine words (usually 8 or 16 bytes). dict_col_add_to_cache(), dict_col_reposition_in_cache(), dict_col_remove_from_cache(): Remove. These only updated dict_sys->col_hash. dict_index_find_cols(): Use a linear search instead of the hash table. The time complexity is affected, but this function is only invoked by dict_index_add_to_cache(), and we only search the columns of a single table (typically at most a few dozen) as opposed to all columns of all tables. Revision r820: Remove dict_col_t::clust_pos. dict_col_get_clust_pos(): Add parameter clust_index. Replace the look-up with a linear search of all columns in the clustered index. row_upd_index_replace_new_col_vals(): Compute clust_index outside the loops. Compute clust_pos outside the inner loop. row_upd_changes_ord_field_binary(), row_upd_changes_first_fields_binary(): Compute clust_index outside the loops. Declare the auxiliary variables inside the loop scope. Revision r821: dict_table_t: Rename the integer field max_row_size to the Boolean field big_rows. (Bug #20877) BIG_ROW_SIZE: Move the definition from row0sel.c to dict_table_add_to_cache(). Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r836: Remove dict_col_t::name, replace it with a packed array of column names in dict_table_t. This saves 8-15+ bytes of memory per column on 64-bit machines. storage/innobase/eval/eval0eval.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r826: The code base was reindented in r763 and automatic .emacs indentation settings introduced. Some problems were found, so from this commit on one additional indentation rule is introduced: (add-to-list 'c-offsets-alist '(arglist-intro . +)) Note that fixing some of the unfortunate line-splits done in r764 will be done in a future change. storage/innobase/eval/eval0proc.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/fil/fil0fil.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/fsp/fsp0fsp.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. Revision r845: Split long lines with [] operators better. storage/innobase/handler/ha_innodb.cc: Applied innodb-5.1 snapshots ss799 and ss854 storage/innobase/handler/ha_innodb.h: Applied innodb-5.1 snapshots ss799 and ss854 storage/innobase/ibuf/ibuf0ibuf.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/include/btr0btr.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". storage/innobase/include/btr0btr.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. storage/innobase/include/btr0cur.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". storage/innobase/include/btr0cur.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". storage/innobase/include/btr0pcur.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r817: btr0pcur.h: Change FIXME to TODO. storage/innobase/include/btr0sea.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r824: Reduce the size of btr_search_t from 13 machine words to 7. This structure is reserved for every index in the data dictionary cache. (Bug #20877) We could shrink the structure further to three 32-bit words or two 64-bit words by turning the remaining fields to bit-fields. Unfortunately, the fields are not protected by any mutex, and thus we would better keep each field aligned to a machine word. btr_search_t, buf_block_t: Rename "ulint side" to "ibool left_side". Remove BTR_SEARCH_LEFT_SIDE and BTR_SEARCH_RIGHT_SIDE, and also rename some local variables and function parameters from "ulint side" to "ibool left_side". btr_search_t: Remove the unused fields last_search, n_direction, direction, and modify_clock. Remove the unused constants BTR_SEA_NO_DIRECTION, BTR_SEA_LEFT, BTR_SEA_RIGHT, and BTR_SEA_SAME_REC. btr_search_t: Remove magic_n unless #defined UNIV_DEBUG. Turn an assertion about the magic number into a debug assertion. storage/innobase/include/buf0buf.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r824: Reduce the size of btr_search_t from 13 machine words to 7. This structure is reserved for every index in the data dictionary cache. (Bug #20877) We could shrink the structure further to three 32-bit words or two 64-bit words by turning the remaining fields to bit-fields. Unfortunately, the fields are not protected by any mutex, and thus we would better keep each field aligned to a machine word. btr_search_t, buf_block_t: Rename "ulint side" to "ibool left_side". Remove BTR_SEARCH_LEFT_SIDE and BTR_SEARCH_RIGHT_SIDE, and also rename some local variables and function parameters from "ulint side" to "ibool left_side". btr_search_t: Remove the unused fields last_search, n_direction, direction, and modify_clock. Remove the unused constants BTR_SEA_NO_DIRECTION, BTR_SEA_LEFT, BTR_SEA_RIGHT, and BTR_SEA_SAME_REC. btr_search_t: Remove magic_n unless #defined UNIV_DEBUG. Turn an assertion about the magic number into a debug assertion. storage/innobase/include/data0data.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. storage/innobase/include/data0type.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r816: Remove more remnants of mixed indexes. Revision r819: dict_col_t: Reduce ord_part to one bit. dict_index_add_to_cache(): Instead of incrementing ord_part, set it. dict_index_remove_from_cache(): Do not touch ord_part. dtype_t: Reduce mbminlen from 3 to 2 bits. row_upd(): Add a UNIV_LIKELY hint around node->in_mysql_interface. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. storage/innobase/include/data0type.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r816: Remove more remnants of mixed indexes. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/include/dict0boot.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r816: Remove more remnants of mixed indexes. storage/innobase/include/dict0dict.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r816: Remove more remnants of mixed indexes. Revision r818: Remove dict_col_t::hash, dict_col_t::table, dict_sys->col_hash, and DICT_POOL_PER_COL_HASH. (Bug #20877) The col->table pointer was only needed for maintaining a hash table of all defined columns in all tables. The hash table was only looked up in dict_index_find_cols(). Removing the col->hash and col->table pointers reduces the size of a table column by two machine words (usually 8 or 16 bytes). dict_col_add_to_cache(), dict_col_reposition_in_cache(), dict_col_remove_from_cache(): Remove. These only updated dict_sys->col_hash. dict_index_find_cols(): Use a linear search instead of the hash table. The time complexity is affected, but this function is only invoked by dict_index_add_to_cache(), and we only search the columns of a single table (typically at most a few dozen) as opposed to all columns of all tables. Revision r820: Remove dict_col_t::clust_pos. dict_col_get_clust_pos(): Add parameter clust_index. Replace the look-up with a linear search of all columns in the clustered index. row_upd_index_replace_new_col_vals(): Compute clust_index outside the loops. Compute clust_pos outside the inner loop. row_upd_changes_ord_field_binary(), row_upd_changes_first_fields_binary(): Compute clust_index outside the loops. Declare the auxiliary variables inside the loop scope. Revision r827: Make dict_index_find_cols() always succeed. Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r831: Add dict_col_get_clust_pos_noninline(), which was forgotten from r820. Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r836: Remove dict_col_t::name, replace it with a packed array of column names in dict_table_t. This saves 8-15+ bytes of memory per column on 64-bit machines. storage/innobase/include/dict0dict.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r820: Remove dict_col_t::clust_pos. dict_col_get_clust_pos(): Add parameter clust_index. Replace the look-up with a linear search of all columns in the clustered index. row_upd_index_replace_new_col_vals(): Compute clust_index outside the loops. Compute clust_pos outside the inner loop. row_upd_changes_ord_field_binary(), row_upd_changes_first_fields_binary(): Compute clust_index outside the loops. Declare the auxiliary variables inside the loop scope. Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. storage/innobase/include/dict0mem.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r815: dict_index_t: Remove tree_indexes. It should have been removed in r453 when the list in dict_tree_t was replaced with the pointer tree_index. Revision r818: Remove dict_col_t::hash, dict_col_t::table, dict_sys->col_hash, and DICT_POOL_PER_COL_HASH. (Bug #20877) The col->table pointer was only needed for maintaining a hash table of all defined columns in all tables. The hash table was only looked up in dict_index_find_cols(). Removing the col->hash and col->table pointers reduces the size of a table column by two machine words (usually 8 or 16 bytes). dict_col_add_to_cache(), dict_col_reposition_in_cache(), dict_col_remove_from_cache(): Remove. These only updated dict_sys->col_hash. dict_index_find_cols(): Use a linear search instead of the hash table. The time complexity is affected, but this function is only invoked by dict_index_add_to_cache(), and we only search the columns of a single table (typically at most a few dozen) as opposed to all columns of all tables. Revision r819: dict_col_t: Reduce ord_part to one bit. dict_index_add_to_cache(): Instead of incrementing ord_part, set it. dict_index_remove_from_cache(): Do not touch ord_part. dtype_t: Reduce mbminlen from 3 to 2 bits. row_upd(): Add a UNIV_LIKELY hint around node->in_mysql_interface. Revision r820: Remove dict_col_t::clust_pos. dict_col_get_clust_pos(): Add parameter clust_index. Replace the look-up with a linear search of all columns in the clustered index. row_upd_index_replace_new_col_vals(): Compute clust_index outside the loops. Compute clust_pos outside the inner loop. row_upd_changes_ord_field_binary(), row_upd_changes_first_fields_binary(): Compute clust_index outside the loops. Declare the auxiliary variables inside the loop scope. Revision r821: dict_table_t: Rename the integer field max_row_size to the Boolean field big_rows. (Bug #20877) BIG_ROW_SIZE: Move the definition from row0sel.c to dict_table_add_to_cache(). Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r833: Tweak the bit-field definitions introduced since r813 to address Bug #20877. rw_lock_t: Do not make writer_is_wait_ex a bit-field. There are no fields yet that could be fused to the same machine word, but we play it safe, because the field writer_is_wait_ex may be modified by several threads simultaneously. Such fields should always be allocated an own machine word. dict_table_t: Change the type of all bit-fields to "unsigned". Make "space" a bit-field of 32 bits. Move name_hash and id_hash after all bit-fields, so that the bit-fields can be allocated together. Do not make autoinc_inited a bit-field, as we cannot allocate any field from the same machine word. dict_build_table_def_step(): Pass a local variable to fil_create_new_single_table_tablespace() and initialize table->space from it after the call, now that table->space is a bit-field. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r835: Change the recently introduced ulint bit-fields to unsigned. Revision r836: Remove dict_col_t::name, replace it with a packed array of column names in dict_table_t. This saves 8-15+ bytes of memory per column on 64-bit machines. storage/innobase/include/dict0types.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". storage/innobase/include/ibuf0ibuf.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/include/page0page.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r830: page_align(ptr): New utility function to replace ut_align_down(ptr, UNIV_PAGE_SIZE) calls. Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. storage/innobase/include/page0page.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r830: page_align(ptr): New utility function to replace ut_align_down(ptr, UNIV_PAGE_SIZE) calls. Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/include/read0read.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/include/rem0cmp.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. storage/innobase/include/rem0cmp.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. storage/innobase/include/rem0rec.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. storage/innobase/include/rem0rec.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/include/rem0types.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. storage/innobase/include/row0upd.ic: Applied innodb-5.1 snapshots ss799 and ss854 Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. storage/innobase/include/sync0rw.h: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r823: Minor cleanup related to Bug #20877. btr_print_recursive(): Replace tree->tree_indexes with tree->index. This should have been done in r453. univ.i: Add UNIV_BTR_PRINT. rw_lock_t: Reduce writer_is_wait_ex to a bit and move it close to other bitfields. Change the types to unsigned, in case ulint or ibool bitfields will not work. Revision r833: Tweak the bit-field definitions introduced since r813 to address Bug #20877. rw_lock_t: Do not make writer_is_wait_ex a bit-field. There are no fields yet that could be fused to the same machine word, but we play it safe, because the field writer_is_wait_ex may be modified by several threads simultaneously. Such fields should always be allocated an own machine word. dict_table_t: Change the type of all bit-fields to "unsigned". Make "space" a bit-field of 32 bits. Move name_hash and id_hash after all bit-fields, so that the bit-fields can be allocated together. Do not make autoinc_inited a bit-field, as we cannot allocate any field from the same machine word. dict_build_table_def_step(): Pass a local variable to fil_create_new_single_table_tablespace() and initialize table->space from it after the call, now that table->space is a bit-field. storage/innobase/include/univ.i: Applied innodb-5.1 snapshots ss799 and ss854 Revision r823: Minor cleanup related to Bug #20877. btr_print_recursive(): Replace tree->tree_indexes with tree->index. This should have been done in r453. univ.i: Add UNIV_BTR_PRINT. rw_lock_t: Reduce writer_is_wait_ex to a bit and move it close to other bitfields. Change the types to unsigned, in case ulint or ibool bitfields will not work. storage/innobase/lock/lock0lock.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/log/log0log.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/log/log0recv.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/mem/mem0dbg.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/mem/mem0pool.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/mtr/mtr0log.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/mtr/mtr0mtr.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/os/os0file.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/os/os0thread.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/page/page0cur.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/page/page0page.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. storage/innobase/pars/pars0opt.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/pars/pars0pars.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/pars/pars0sym.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. storage/innobase/read/read0read.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/rem/rem0cmp.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/rem/rem0rec.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/row/row0ins.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/row/row0mysql.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/row/row0purge.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r828: Remove dict_tree_t, which should have been removed in r453. There always was a one-to-one mapping between dict_tree_t and dict_index_t. This saves 6 machine words per B-tree index in the data dictionary cache plus the memory allocation overhead. We save one mem_heap_t object per index (15 machine words). Considering the internal fragmentation of the buddy allocator in mem_area_alloc(), this should save 32 machine words per index (128 bytes on 32-bit systems and 256 bytes on 64-bit systems). (Bug #20877) struct dict_tree_struct, dict_tree_t: Remove. struct dict_index_struct: Add page and lock. dict_tree_create(): Remove. Replace the invocation with assignment to index->page and a call to rw_lock_create(&index->lock). dict_tree_free(): Remove. Replace the invocation wtih a call to rw_lock_free(&index->lock). dict_index_get_tree(): Remove. dict_tree_get_space_reserve(): Rename to dict_index_get_space_reserve() and remove the parameter, which was unused. btr_level_list_remove(): Remove the unused parameter "tree". Replace the occurrences of "tree" with "index" in names of variables, functions and data types, e.g. "dict_tree_t tree" becomes "dict_index_t index". Remove local variables "tree" or "index" of functions that needed both "tree" and "index". Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/row/row0row.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/row/row0sel.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r820: Remove dict_col_t::clust_pos. dict_col_get_clust_pos(): Add parameter clust_index. Replace the look-up with a linear search of all columns in the clustered index. row_upd_index_replace_new_col_vals(): Compute clust_index outside the loops. Compute clust_pos outside the inner loop. row_upd_changes_ord_field_binary(), row_upd_changes_first_fields_binary(): Compute clust_index outside the loops. Declare the auxiliary variables inside the loop scope. Revision r821: dict_table_t: Rename the integer field max_row_size to the Boolean field big_rows. (Bug #20877) BIG_ROW_SIZE: Move the definition from row0sel.c to dict_table_add_to_cache(). Revision r825: row_search_for_mysql(): Skip setting the next-key lock on an already delete-marked record in a clustered index where the search criteria is unique, within the same transaction (Bug #13544). Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r837: page_offset(): New function to replace many ut_align_offset(., UNIV_PAGE_SIZE) calls. dict_index_build_node_ptr(): Correct a typo in a comment. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. Revision r845: Split long lines with [] operators better. storage/innobase/row/row0uins.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/row/row0umod.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/row/row0upd.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r819: dict_col_t: Reduce ord_part to one bit. dict_index_add_to_cache(): Instead of incrementing ord_part, set it. dict_index_remove_from_cache(): Do not touch ord_part. dtype_t: Reduce mbminlen from 3 to 2 bits. row_upd(): Add a UNIV_LIKELY hint around node->in_mysql_interface. Revision r820: Remove dict_col_t::clust_pos. dict_col_get_clust_pos(): Add parameter clust_index. Replace the look-up with a linear search of all columns in the clustered index. row_upd_index_replace_new_col_vals(): Compute clust_index outside the loops. Compute clust_pos outside the inner loop. row_upd_changes_ord_field_binary(), row_upd_changes_first_fields_binary(): Compute clust_index outside the loops. Declare the auxiliary variables inside the loop scope. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. Revision r851: row_upd_sec_step(): Fix false comment. storage/innobase/row/row0vers.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/srv/srv0srv.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. Revision r832: Add dict_table_get_col_name() in preparation for getting rid of dict_col_t::name, and use it instead of col->name everywhere. Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/srv/srv0start.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/sync/sync0arr.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/sync/sync0rw.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r813: Reduce the size of the data dictionary cache. (Bug #20877) dtype_t: Remove unused field "prec", which was supposed to be used for the precision of decimal columns in stand-alone InnoDB. dtype_get_prec(): Remove. dtype_set(), dict_mem_table_add_col(): Remove parameter "prec". dtype_t: Turn all fields (mtype, prtype, len, mbminlen, mbmaxlen, len) into bit-fields. dict_table_t, dict_index_t, dict_tree_t: Omit magic_n from non-debug builds. dict_col_t: Turn ind, clust_pos, and ord_part into bit-fields. Replace the default clust_pos value ULINT_UNDEFINED with REC_MAX_N_FIELDS and replace all references to clust_pos with calls to the accessor function dict_col_get_clust_pos(). dict_field_t: Turn prefix_len and fixed_len into bit-fields. dict_tree_t: Remove pad[64]. dict_table_t: Turn the fields ibd_file_missing, tablespace_discarded, cached, flags, stat_initialized, and autoinc_inited into bit-fields. Remove does_not_fit_in_memory from non-debug builds. dict_index_t: Turn the fields trx_id_offset, n_user_defined_cols, n_uniq, n_def, n_fields, n_nullable, and cached into bit-fields. dict_foreign_struct: Turn n_fields and type into bit-fields. rw_lock_t: Turn cline, last_s_line, and last_x_line into bit-fields. Omit level unless #defined UNIV_SYNC_DEBUG. Move REC_MAX_N_FIELDS (and REC_MAX_HEAP_NO and REC_MAX_N_OWNED) from rem0rec.c to rem0types.h, as they are needed in dict0dict.ic. dict_col_get_clust_pos(): Map REC_MAX_N_FIELDS to ULINT_UNDEFINED. storage/innobase/sync/sync0sync.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/trx/trx0purge.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/trx/trx0rec.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r834: dict_col_t: Copy the fields of "dtype_t type" directly to this structure, so that all integer fields can be packed into 64 bits. (Bug #20877) dtype_t: Change the type of all bit-fields to unsigned. dict_table_get_nth_col(), dict_table_get_sys_col_noninline(), dict_table_get_sys_col(), dict_field_get_col(): Return const dict_col_t*, so that changes to dict_col_t can be detected more easily. Add const to many dict_col_t* declarations. dict_index_get_nth_type(): Replace with dict_index_get_nth_col(). dict_col_get_type(): Replace with dict_col_copy_type(). dict_col_get_min_size(), dict_col_get_max_size(), dict_col_get_fixed_size(), dict_col_get_sql_null_size(): New functions. dtype_get_at_most_n_mbchars(): Replace the parameter dtype with the parameters prtype, mbminlen, mbmaxlen. dtype_get_pad_char(), cmp_data_data(), cmp_data_data_slow(), cmp_whole_field(): Replace the dtype_t* parameter with the ulint parameters mtype, prtype. dtype_copy(): Add a const qualifier to type2 (the one being copied from). dtype_set_mblen(): Replaced with dtype_get_mblen(). dtype_get_fixed_size_low(), dtype_get_min_size_low(), dtype_get_fixed_max_low(): Replace dtype_get_fixed_size(), dtype_get_min_size(), and dtype_get_max_size(). These are used by the dict_col_get_{fixed,min,max}_size() functions. cmp_types_are_equal(): Replace with cmp_cols_are_equal(). dict_table_get_col_name(): Add a const qualifier parameter to the parameter "table". dtype_binary, dtype_binary_val: Remove. dtype_is_fixed_size(): Remove. Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/trx/trx0rseg.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/trx/trx0sys.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r829: Erase the magic number in the trx sys header using a redo-logged write; it should be redo-logged because the data structure is file-based; this patch does not fix any bug; the original erase operation was added in r781 to fix Valgrind Bug #20791 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/trx/trx0trx.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826. storage/innobase/trx/trx0undo.c: Applied innodb-5.1 snapshots ss799 and ss854 Revision r838: Revamp the line splits done in r763 and r764 that can now be done better, thanks to r826.
1002 lines
35 KiB
C
1002 lines
35 KiB
C
/******************************************************
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Data dictionary system
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(c) 1996 Innobase Oy
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Created 1/8/1996 Heikki Tuuri
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*******************************************************/
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#ifndef dict0dict_h
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#define dict0dict_h
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#include "univ.i"
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#include "dict0types.h"
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#include "dict0mem.h"
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#include "data0type.h"
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#include "data0data.h"
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#include "sync0sync.h"
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#include "sync0rw.h"
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#include "mem0mem.h"
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#include "rem0types.h"
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#include "btr0types.h"
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#include "ut0mem.h"
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#include "ut0lst.h"
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#include "hash0hash.h"
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#include "ut0rnd.h"
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#include "ut0byte.h"
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#include "trx0types.h"
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#ifndef UNIV_HOTBACKUP
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/**********************************************************************
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Makes all characters in a NUL-terminated UTF-8 string lower case. */
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void
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dict_casedn_str(
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/*============*/
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char* a); /* in/out: string to put in lower case */
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#endif /* !UNIV_HOTBACKUP */
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/************************************************************************
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Get the database name length in a table name. */
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ulint
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dict_get_db_name_len(
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/*=================*/
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/* out: database name length */
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const char* name); /* in: table name in the form
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dbname '/' tablename */
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/************************************************************************
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Return the end of table name where we have removed dbname and '/'. */
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const char*
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dict_remove_db_name(
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/*================*/
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/* out: table name */
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const char* name); /* in: table name in the form
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dbname '/' tablename */
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/************************************************************************
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Decrements the count of open MySQL handles to a table. */
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void
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dict_table_decrement_handle_count(
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/*==============================*/
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dict_table_t* table); /* in: table */
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/**************************************************************************
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Inits the data dictionary module. */
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void
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dict_init(void);
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/*===========*/
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/************************************************************************
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Gets the space id of every table of the data dictionary and makes a linear
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list and a hash table of them to the data dictionary cache. This function
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can be called at database startup if we did not need to do a crash recovery.
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In crash recovery we must scan the space id's from the .ibd files in MySQL
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database directories. */
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void
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dict_load_space_id_list(void);
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/*=========================*/
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/*************************************************************************
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Gets the column data type. */
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UNIV_INLINE
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void
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dict_col_copy_type(
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/*===============*/
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const dict_col_t* col, /* in: column */
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dtype_t* type); /* out: data type */
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/*************************************************************************
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Gets the column data type. */
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void
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dict_col_copy_type_noninline(
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/*=========================*/
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const dict_col_t* col, /* in: column */
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dtype_t* type); /* out: data type */
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/***************************************************************************
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Returns the minimum size of the column. */
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UNIV_INLINE
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ulint
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dict_col_get_min_size(
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/*==================*/
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/* out: minimum size */
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const dict_col_t* col); /* in: column */
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/***************************************************************************
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Returns the maximum size of the column. */
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UNIV_INLINE
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ulint
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dict_col_get_max_size(
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/*==================*/
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/* out: maximum size */
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const dict_col_t* col); /* in: column */
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/***************************************************************************
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Returns the size of a fixed size column, 0 if not a fixed size column. */
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UNIV_INLINE
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ulint
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dict_col_get_fixed_size(
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/*====================*/
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/* out: fixed size, or 0 */
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const dict_col_t* col); /* in: column */
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/***************************************************************************
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Returns the ROW_FORMAT=REDUNDANT stored SQL NULL size of a column.
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For fixed length types it is the fixed length of the type, otherwise 0. */
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UNIV_INLINE
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ulint
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dict_col_get_sql_null_size(
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/*=======================*/
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/* out: SQL null storage size
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in ROW_FORMAT=REDUNDANT */
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const dict_col_t* col); /* in: column */
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/*************************************************************************
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Gets the column number. */
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UNIV_INLINE
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ulint
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dict_col_get_no(
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/*============*/
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const dict_col_t* col);
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/*************************************************************************
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Gets the column position in the clustered index. */
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UNIV_INLINE
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ulint
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dict_col_get_clust_pos(
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/*===================*/
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const dict_col_t* col, /* in: table column */
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const dict_index_t* clust_index); /* in: clustered index */
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/*************************************************************************
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Gets the column position in the clustered index. */
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ulint
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dict_col_get_clust_pos_noninline(
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/*=============================*/
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const dict_col_t* col, /* in: table column */
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const dict_index_t* clust_index); /* in: clustered index */
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/********************************************************************
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If the given column name is reserved for InnoDB system columns, return
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TRUE. */
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ibool
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dict_col_name_is_reserved(
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/*======================*/
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/* out: TRUE if name is reserved */
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const char* name); /* in: column name */
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/************************************************************************
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Initializes the autoinc counter. It is not an error to initialize an already
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initialized counter. */
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void
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dict_table_autoinc_initialize(
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/*==========================*/
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dict_table_t* table, /* in: table */
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ib_longlong value); /* in: next value to assign to a row */
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/************************************************************************
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Gets the next autoinc value (== autoinc counter value), 0 if not yet
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initialized. If initialized, increments the counter by 1. */
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ib_longlong
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dict_table_autoinc_get(
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/*===================*/
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/* out: value for a new row, or 0 */
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dict_table_t* table); /* in: table */
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/************************************************************************
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Decrements the autoinc counter value by 1. */
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void
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dict_table_autoinc_decrement(
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/*=========================*/
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dict_table_t* table); /* in: table */
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/************************************************************************
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Reads the next autoinc value (== autoinc counter value), 0 if not yet
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initialized. */
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ib_longlong
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dict_table_autoinc_read(
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/*====================*/
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/* out: value for a new row, or 0 */
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dict_table_t* table); /* in: table */
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/************************************************************************
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Peeks the autoinc counter value, 0 if not yet initialized. Does not
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increment the counter. The read not protected by any mutex! */
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ib_longlong
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dict_table_autoinc_peek(
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/*====================*/
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/* out: value of the counter */
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dict_table_t* table); /* in: table */
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/************************************************************************
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Updates the autoinc counter if the value supplied is equal or bigger than the
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current value. If not inited, does nothing. */
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void
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dict_table_autoinc_update(
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/*======================*/
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dict_table_t* table, /* in: table */
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ib_longlong value); /* in: value which was assigned to a row */
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/**************************************************************************
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Adds a table object to the dictionary cache. */
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void
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dict_table_add_to_cache(
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/*====================*/
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dict_table_t* table); /* in: table */
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/**************************************************************************
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Removes a table object from the dictionary cache. */
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void
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dict_table_remove_from_cache(
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/*=========================*/
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dict_table_t* table); /* in, own: table */
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/**************************************************************************
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Renames a table object. */
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ibool
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dict_table_rename_in_cache(
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/*=======================*/
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/* out: TRUE if success */
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dict_table_t* table, /* in: table */
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const char* new_name, /* in: new name */
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ibool rename_also_foreigns);/* in: in ALTER TABLE we want
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to preserve the original table name
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in constraints which reference it */
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/**************************************************************************
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Change the id of a table object in the dictionary cache. This is used in
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DISCARD TABLESPACE. */
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void
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dict_table_change_id_in_cache(
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/*==========================*/
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dict_table_t* table, /* in: table object already in cache */
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dulint new_id);/* in: new id to set */
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/**************************************************************************
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Adds a foreign key constraint object to the dictionary cache. May free
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the object if there already is an object with the same identifier in.
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At least one of foreign table or referenced table must already be in
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the dictionary cache! */
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ulint
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dict_foreign_add_to_cache(
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/*======================*/
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/* out: DB_SUCCESS or error code */
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dict_foreign_t* foreign, /* in, own: foreign key constraint */
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ibool check_charsets);/* in: TRUE=check charset
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compatibility */
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/*************************************************************************
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Checks if a table is referenced by foreign keys. */
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ibool
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dict_table_referenced_by_foreign_key(
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/*=================================*/
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/* out: TRUE if table is referenced by a
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foreign key */
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dict_table_t* table); /* in: InnoDB table */
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/**************************************************************************
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Determines whether a string starts with the specified keyword. */
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ibool
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dict_str_starts_with_keyword(
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/*=========================*/
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/* out: TRUE if str starts
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with keyword */
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void* mysql_thd, /* in: MySQL thread handle */
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const char* str, /* in: string to scan for keyword */
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const char* keyword); /* in: keyword to look for */
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/*************************************************************************
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Scans a table create SQL string and adds to the data dictionary
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the foreign key constraints declared in the string. This function
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should be called after the indexes for a table have been created.
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Each foreign key constraint must be accompanied with indexes in
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bot participating tables. The indexes are allowed to contain more
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fields than mentioned in the constraint. */
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ulint
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dict_create_foreign_constraints(
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/*============================*/
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/* out: error code or DB_SUCCESS */
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trx_t* trx, /* in: transaction */
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const char* sql_string, /* in: table create statement where
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foreign keys are declared like:
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FOREIGN KEY (a, b) REFERENCES
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table2(c, d), table2 can be written
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also with the database
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name before it: test.table2; the
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default database id the database of
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parameter name */
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const char* name, /* in: table full name in the
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normalized form
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database_name/table_name */
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ibool reject_fks); /* in: if TRUE, fail with error
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code DB_CANNOT_ADD_CONSTRAINT if
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any foreign keys are found. */
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/**************************************************************************
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Parses the CONSTRAINT id's to be dropped in an ALTER TABLE statement. */
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ulint
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dict_foreign_parse_drop_constraints(
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/*================================*/
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/* out: DB_SUCCESS or
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DB_CANNOT_DROP_CONSTRAINT if
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syntax error or the constraint
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id does not match */
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mem_heap_t* heap, /* in: heap from which we can
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allocate memory */
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trx_t* trx, /* in: transaction */
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dict_table_t* table, /* in: table */
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ulint* n, /* out: number of constraints
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to drop */
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const char*** constraints_to_drop); /* out: id's of the
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constraints to drop */
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/**************************************************************************
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Returns a table object. NOTE! This is a high-level function to be used
|
|
mainly from outside the 'dict' directory. Inside this directory
|
|
dict_table_get_low is usually the appropriate function. */
|
|
|
|
dict_table_t*
|
|
dict_table_get(
|
|
/*===========*/
|
|
/* out: table, NULL if
|
|
does not exist */
|
|
const char* table_name); /* in: table name */
|
|
/**************************************************************************
|
|
Returns a table object and increments MySQL open handle count on the table.
|
|
*/
|
|
|
|
dict_table_t*
|
|
dict_table_get_and_increment_handle_count(
|
|
/*======================================*/
|
|
/* out: table, NULL if
|
|
does not exist */
|
|
const char* table_name); /* in: table name */
|
|
/**************************************************************************
|
|
Returns a table object based on table id. */
|
|
|
|
dict_table_t*
|
|
dict_table_get_on_id(
|
|
/*=================*/
|
|
/* out: table, NULL if does not exist */
|
|
dulint table_id, /* in: table id */
|
|
trx_t* trx); /* in: transaction handle */
|
|
/**************************************************************************
|
|
Returns a table object based on table id. */
|
|
UNIV_INLINE
|
|
dict_table_t*
|
|
dict_table_get_on_id_low(
|
|
/*=====================*/
|
|
/* out: table, NULL if does not exist */
|
|
dulint table_id); /* in: table id */
|
|
/**************************************************************************
|
|
Checks if a table is in the dictionary cache. */
|
|
UNIV_INLINE
|
|
dict_table_t*
|
|
dict_table_check_if_in_cache_low(
|
|
/*=============================*/
|
|
/* out: table, NULL if not found */
|
|
const char* table_name); /* in: table name */
|
|
/**************************************************************************
|
|
Gets a table; loads it to the dictionary cache if necessary. A low-level
|
|
function. */
|
|
UNIV_INLINE
|
|
dict_table_t*
|
|
dict_table_get_low(
|
|
/*===============*/
|
|
/* out: table, NULL if not found */
|
|
const char* table_name); /* in: table name */
|
|
/**************************************************************************
|
|
A noninlined version of dict_table_get_low. */
|
|
|
|
dict_table_t*
|
|
dict_table_get_low_noninlined(
|
|
/*==========================*/
|
|
/* out: table, NULL if not found */
|
|
const char* table_name); /* in: table name */
|
|
/**************************************************************************
|
|
Returns an index object. */
|
|
UNIV_INLINE
|
|
dict_index_t*
|
|
dict_table_get_index(
|
|
/*=================*/
|
|
/* out: index, NULL if does not exist */
|
|
dict_table_t* table, /* in: table */
|
|
const char* name); /* in: index name */
|
|
/**************************************************************************
|
|
Returns an index object. */
|
|
|
|
dict_index_t*
|
|
dict_table_get_index_noninline(
|
|
/*===========================*/
|
|
/* out: index, NULL if does not exist */
|
|
dict_table_t* table, /* in: table */
|
|
const char* name); /* in: index name */
|
|
/**************************************************************************
|
|
Returns a column's name. */
|
|
|
|
const char*
|
|
dict_table_get_col_name(
|
|
/*====================*/
|
|
/* out: column name. NOTE: not
|
|
guaranteed to stay valid if table is
|
|
modified in any way (columns added,
|
|
etc.). */
|
|
const dict_table_t* table, /* in: table */
|
|
ulint col_nr);/* in: column number */
|
|
|
|
/**************************************************************************
|
|
Prints a table definition. */
|
|
|
|
void
|
|
dict_table_print(
|
|
/*=============*/
|
|
dict_table_t* table); /* in: table */
|
|
/**************************************************************************
|
|
Prints a table data. */
|
|
|
|
void
|
|
dict_table_print_low(
|
|
/*=================*/
|
|
dict_table_t* table); /* in: table */
|
|
/**************************************************************************
|
|
Prints a table data when we know the table name. */
|
|
|
|
void
|
|
dict_table_print_by_name(
|
|
/*=====================*/
|
|
const char* name);
|
|
/**************************************************************************
|
|
Outputs info on foreign keys of a table. */
|
|
|
|
void
|
|
dict_print_info_on_foreign_keys(
|
|
/*============================*/
|
|
ibool create_table_format, /* in: if TRUE then print in
|
|
a format suitable to be inserted into
|
|
a CREATE TABLE, otherwise in the format
|
|
of SHOW TABLE STATUS */
|
|
FILE* file, /* in: file where to print */
|
|
trx_t* trx, /* in: transaction */
|
|
dict_table_t* table); /* in: table */
|
|
/**************************************************************************
|
|
Outputs info on a foreign key of a table in a format suitable for
|
|
CREATE TABLE. */
|
|
void
|
|
dict_print_info_on_foreign_key_in_create_format(
|
|
/*============================================*/
|
|
FILE* file, /* in: file where to print */
|
|
trx_t* trx, /* in: transaction */
|
|
dict_foreign_t* foreign, /* in: foreign key constraint */
|
|
ibool add_newline); /* in: whether to add a newline */
|
|
/************************************************************************
|
|
Displays the names of the index and the table. */
|
|
void
|
|
dict_index_name_print(
|
|
/*==================*/
|
|
FILE* file, /* in: output stream */
|
|
trx_t* trx, /* in: transaction */
|
|
const dict_index_t* index); /* in: index to print */
|
|
/************************************************************************
|
|
Gets the first index on the table (the clustered index). */
|
|
UNIV_INLINE
|
|
dict_index_t*
|
|
dict_table_get_first_index(
|
|
/*=======================*/
|
|
/* out: index, NULL if none exists */
|
|
dict_table_t* table); /* in: table */
|
|
/************************************************************************
|
|
Gets the first index on the table (the clustered index). */
|
|
|
|
dict_index_t*
|
|
dict_table_get_first_index_noninline(
|
|
/*=================================*/
|
|
/* out: index, NULL if none exists */
|
|
dict_table_t* table); /* in: table */
|
|
/************************************************************************
|
|
Gets the next index on the table. */
|
|
UNIV_INLINE
|
|
dict_index_t*
|
|
dict_table_get_next_index(
|
|
/*======================*/
|
|
/* out: index, NULL if none left */
|
|
dict_index_t* index); /* in: index */
|
|
/************************************************************************
|
|
Gets the next index on the table. */
|
|
|
|
dict_index_t*
|
|
dict_table_get_next_index_noninline(
|
|
/*================================*/
|
|
/* out: index, NULL if none left */
|
|
dict_index_t* index); /* in: index */
|
|
/************************************************************************
|
|
Gets the number of user-defined columns in a table in the dictionary
|
|
cache. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_table_get_n_user_cols(
|
|
/*=======================*/
|
|
/* out: number of user-defined (e.g., not
|
|
ROW_ID) columns of a table */
|
|
dict_table_t* table); /* in: table */
|
|
/************************************************************************
|
|
Gets the number of system columns in a table in the dictionary cache. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_table_get_n_sys_cols(
|
|
/*======================*/
|
|
/* out: number of system (e.g.,
|
|
ROW_ID) columns of a table */
|
|
dict_table_t* table); /* in: table */
|
|
/************************************************************************
|
|
Gets the number of all columns (also system) in a table in the dictionary
|
|
cache. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_table_get_n_cols(
|
|
/*==================*/
|
|
/* out: number of columns of a table */
|
|
dict_table_t* table); /* in: table */
|
|
/************************************************************************
|
|
Gets the nth column of a table. */
|
|
UNIV_INLINE
|
|
const dict_col_t*
|
|
dict_table_get_nth_col(
|
|
/*===================*/
|
|
/* out: pointer to column object */
|
|
const dict_table_t* table, /* in: table */
|
|
ulint pos); /* in: position of column */
|
|
/************************************************************************
|
|
Gets the nth column of a table. */
|
|
|
|
const dict_col_t*
|
|
dict_table_get_nth_col_noninline(
|
|
/*=============================*/
|
|
/* out: pointer to column object */
|
|
const dict_table_t* table, /* in: table */
|
|
ulint pos); /* in: position of column */
|
|
/************************************************************************
|
|
Gets the given system column of a table. */
|
|
UNIV_INLINE
|
|
const dict_col_t*
|
|
dict_table_get_sys_col(
|
|
/*===================*/
|
|
/* out: pointer to column object */
|
|
const dict_table_t* table, /* in: table */
|
|
ulint sys); /* in: DATA_ROW_ID, ... */
|
|
/************************************************************************
|
|
Gets the given system column number of a table. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_table_get_sys_col_no(
|
|
/*======================*/
|
|
/* out: column number */
|
|
dict_table_t* table, /* in: table */
|
|
ulint sys); /* in: DATA_ROW_ID, ... */
|
|
/************************************************************************
|
|
Check whether the table uses the compact page format. */
|
|
UNIV_INLINE
|
|
ibool
|
|
dict_table_is_comp(
|
|
/*===============*/
|
|
/* out: TRUE if table uses the
|
|
compact page format */
|
|
const dict_table_t* table); /* in: table */
|
|
/************************************************************************
|
|
Check whether the table uses the compact page format. */
|
|
|
|
ibool
|
|
dict_table_is_comp_noninline(
|
|
/*=========================*/
|
|
/* out: TRUE if table uses the
|
|
compact page format */
|
|
const dict_table_t* table); /* in: table */
|
|
/************************************************************************
|
|
Checks if a column is in the ordering columns of the clustered index of a
|
|
table. Column prefixes are treated like whole columns. */
|
|
|
|
ibool
|
|
dict_table_col_in_clustered_key(
|
|
/*============================*/
|
|
/* out: TRUE if the column, or its prefix, is
|
|
in the clustered key */
|
|
dict_table_t* table, /* in: table */
|
|
ulint n); /* in: column number */
|
|
/***********************************************************************
|
|
Copies types of columns contained in table to tuple. */
|
|
|
|
void
|
|
dict_table_copy_types(
|
|
/*==================*/
|
|
dtuple_t* tuple, /* in: data tuple */
|
|
dict_table_t* table); /* in: index */
|
|
/**************************************************************************
|
|
Looks for an index with the given id. NOTE that we do not reserve
|
|
the dictionary mutex: this function is for emergency purposes like
|
|
printing info of a corrupt database page! */
|
|
|
|
dict_index_t*
|
|
dict_index_find_on_id_low(
|
|
/*======================*/
|
|
/* out: index or NULL if not found from cache */
|
|
dulint id); /* in: index id */
|
|
/**************************************************************************
|
|
Adds an index to the dictionary cache. */
|
|
|
|
void
|
|
dict_index_add_to_cache(
|
|
/*====================*/
|
|
dict_table_t* table, /* in: table on which the index is */
|
|
dict_index_t* index, /* in, own: index; NOTE! The index memory
|
|
object is freed in this function! */
|
|
ulint page_no);/* in: root page number of the index */
|
|
/************************************************************************
|
|
Gets the number of fields in the internal representation of an index,
|
|
including fields added by the dictionary system. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_n_fields(
|
|
/*====================*/
|
|
/* out: number of fields */
|
|
dict_index_t* index); /* in: an internal representation of index
|
|
(in the dictionary cache) */
|
|
/************************************************************************
|
|
Gets the number of fields in the internal representation of an index
|
|
that uniquely determine the position of an index entry in the index, if
|
|
we do not take multiversioning into account: in the B-tree use the value
|
|
returned by dict_index_get_n_unique_in_tree. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_n_unique(
|
|
/*====================*/
|
|
/* out: number of fields */
|
|
dict_index_t* index); /* in: an internal representation of index
|
|
(in the dictionary cache) */
|
|
/************************************************************************
|
|
Gets the number of fields in the internal representation of an index
|
|
which uniquely determine the position of an index entry in the index, if
|
|
we also take multiversioning into account. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_n_unique_in_tree(
|
|
/*============================*/
|
|
/* out: number of fields */
|
|
dict_index_t* index); /* in: an internal representation of index
|
|
(in the dictionary cache) */
|
|
/************************************************************************
|
|
Gets the number of user-defined ordering fields in the index. In the internal
|
|
representation we add the row id to the ordering fields to make all indexes
|
|
unique, but this function returns the number of fields the user defined
|
|
in the index as ordering fields. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_n_ordering_defined_by_user(
|
|
/*======================================*/
|
|
/* out: number of fields */
|
|
dict_index_t* index); /* in: an internal representation of index
|
|
(in the dictionary cache) */
|
|
/************************************************************************
|
|
Gets the nth field of an index. */
|
|
UNIV_INLINE
|
|
dict_field_t*
|
|
dict_index_get_nth_field(
|
|
/*=====================*/
|
|
/* out: pointer to field object */
|
|
dict_index_t* index, /* in: index */
|
|
ulint pos); /* in: position of field */
|
|
/************************************************************************
|
|
Gets pointer to the nth column in an index. */
|
|
UNIV_INLINE
|
|
const dict_col_t*
|
|
dict_index_get_nth_col(
|
|
/*===================*/
|
|
/* out: column */
|
|
const dict_index_t* index, /* in: index */
|
|
ulint pos); /* in: position of the field */
|
|
/************************************************************************
|
|
Gets the column number of the nth field in an index. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_nth_col_no(
|
|
/*======================*/
|
|
/* out: column number */
|
|
const dict_index_t* index, /* in: index */
|
|
ulint pos); /* in: position of the field */
|
|
/************************************************************************
|
|
Looks for column n in an index. */
|
|
|
|
ulint
|
|
dict_index_get_nth_col_pos(
|
|
/*=======================*/
|
|
/* out: position in internal representation
|
|
of the index; if not contained, returns
|
|
ULINT_UNDEFINED */
|
|
dict_index_t* index, /* in: index */
|
|
ulint n); /* in: column number */
|
|
/************************************************************************
|
|
Returns TRUE if the index contains a column or a prefix of that column. */
|
|
|
|
ibool
|
|
dict_index_contains_col_or_prefix(
|
|
/*==============================*/
|
|
/* out: TRUE if contains the column or its
|
|
prefix */
|
|
dict_index_t* index, /* in: index */
|
|
ulint n); /* in: column number */
|
|
/************************************************************************
|
|
Looks for a matching field in an index. The column has to be the same. The
|
|
column in index must be complete, or must contain a prefix longer than the
|
|
column in index2. That is, we must be able to construct the prefix in index2
|
|
from the prefix in index. */
|
|
|
|
ulint
|
|
dict_index_get_nth_field_pos(
|
|
/*=========================*/
|
|
/* out: position in internal representation
|
|
of the index; if not contained, returns
|
|
ULINT_UNDEFINED */
|
|
dict_index_t* index, /* in: index from which to search */
|
|
dict_index_t* index2, /* in: index */
|
|
ulint n); /* in: field number in index2 */
|
|
/************************************************************************
|
|
Looks for column n position in the clustered index. */
|
|
|
|
ulint
|
|
dict_table_get_nth_col_pos(
|
|
/*=======================*/
|
|
/* out: position in internal representation
|
|
of the clustered index */
|
|
dict_table_t* table, /* in: table */
|
|
ulint n); /* in: column number */
|
|
/************************************************************************
|
|
Returns the position of a system column in an index. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_sys_col_pos(
|
|
/*=======================*/
|
|
/* out: position, ULINT_UNDEFINED if not
|
|
contained */
|
|
dict_index_t* index, /* in: index */
|
|
ulint type); /* in: DATA_ROW_ID, ... */
|
|
/***********************************************************************
|
|
Adds a column to index. */
|
|
|
|
void
|
|
dict_index_add_col(
|
|
/*===============*/
|
|
dict_index_t* index, /* in: index */
|
|
dict_table_t* table, /* in: table */
|
|
dict_col_t* col, /* in: column */
|
|
ulint prefix_len); /* in: column prefix length */
|
|
/***********************************************************************
|
|
Copies types of fields contained in index to tuple. */
|
|
|
|
void
|
|
dict_index_copy_types(
|
|
/*==================*/
|
|
dtuple_t* tuple, /* in: data tuple */
|
|
dict_index_t* index, /* in: index */
|
|
ulint n_fields); /* in: number of field types to copy */
|
|
/*************************************************************************
|
|
Gets the field column. */
|
|
UNIV_INLINE
|
|
const dict_col_t*
|
|
dict_field_get_col(
|
|
/*===============*/
|
|
const dict_field_t* field);
|
|
/**************************************************************************
|
|
In an index tree, finds the index corresponding to a record in the tree. */
|
|
|
|
/**************************************************************************
|
|
Returns an index object if it is found in the dictionary cache. */
|
|
|
|
dict_index_t*
|
|
dict_index_get_if_in_cache(
|
|
/*=======================*/
|
|
/* out: index, NULL if not found */
|
|
dulint index_id); /* in: index id */
|
|
#ifdef UNIV_DEBUG
|
|
/**************************************************************************
|
|
Checks that a tuple has n_fields_cmp value in a sensible range, so that
|
|
no comparison can occur with the page number field in a node pointer. */
|
|
|
|
ibool
|
|
dict_index_check_search_tuple(
|
|
/*==========================*/
|
|
/* out: TRUE if ok */
|
|
dict_index_t* index, /* in: index */
|
|
dtuple_t* tuple); /* in: tuple used in a search */
|
|
#endif /* UNIV_DEBUG */
|
|
/**************************************************************************
|
|
Builds a node pointer out of a physical record and a page number. */
|
|
|
|
dtuple_t*
|
|
dict_index_build_node_ptr(
|
|
/*======================*/
|
|
/* out, own: node pointer */
|
|
dict_index_t* index, /* in: index */
|
|
rec_t* rec, /* in: record for which to build node
|
|
pointer */
|
|
ulint page_no,/* in: page number to put in node pointer */
|
|
mem_heap_t* heap, /* in: memory heap where pointer created */
|
|
ulint level); /* in: level of rec in tree: 0 means leaf
|
|
level */
|
|
/**************************************************************************
|
|
Copies an initial segment of a physical record, long enough to specify an
|
|
index entry uniquely. */
|
|
|
|
rec_t*
|
|
dict_index_copy_rec_order_prefix(
|
|
/*=============================*/
|
|
/* out: pointer to the prefix record */
|
|
dict_index_t* index, /* in: index */
|
|
rec_t* rec, /* in: record for which to copy prefix */
|
|
ulint* n_fields,/* out: number of fields copied */
|
|
byte** buf, /* in/out: memory buffer for the copied prefix,
|
|
or NULL */
|
|
ulint* buf_size);/* in/out: buffer size */
|
|
/**************************************************************************
|
|
Builds a typed data tuple out of a physical record. */
|
|
|
|
dtuple_t*
|
|
dict_index_build_data_tuple(
|
|
/*========================*/
|
|
/* out, own: data tuple */
|
|
dict_index_t* index, /* in: index */
|
|
rec_t* rec, /* in: record for which to build data tuple */
|
|
ulint n_fields,/* in: number of data fields */
|
|
mem_heap_t* heap); /* in: memory heap where tuple created */
|
|
/*************************************************************************
|
|
Gets the space id of the root of the index tree. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_space(
|
|
/*=================*/
|
|
/* out: space id */
|
|
dict_index_t* index); /* in: index */
|
|
/*************************************************************************
|
|
Sets the space id of the root of the index tree. */
|
|
UNIV_INLINE
|
|
void
|
|
dict_index_set_space(
|
|
/*=================*/
|
|
dict_index_t* index, /* in: index */
|
|
ulint space); /* in: space id */
|
|
/*************************************************************************
|
|
Gets the page number of the root of the index tree. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_page(
|
|
/*================*/
|
|
/* out: page number */
|
|
dict_index_t* tree); /* in: index */
|
|
/*************************************************************************
|
|
Sets the page number of the root of index tree. */
|
|
UNIV_INLINE
|
|
void
|
|
dict_index_set_page(
|
|
/*================*/
|
|
dict_index_t* index, /* in: index */
|
|
ulint page); /* in: page number */
|
|
/*************************************************************************
|
|
Gets the type of the index tree. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_type(
|
|
/*================*/
|
|
/* out: type */
|
|
dict_index_t* index); /* in: index */
|
|
/*************************************************************************
|
|
Gets the read-write lock of the index tree. */
|
|
UNIV_INLINE
|
|
rw_lock_t*
|
|
dict_index_get_lock(
|
|
/*================*/
|
|
/* out: read-write lock */
|
|
dict_index_t* index); /* in: index */
|
|
/************************************************************************
|
|
Returns free space reserved for future updates of records. This is
|
|
relevant only in the case of many consecutive inserts, as updates
|
|
which make the records bigger might fragment the index. */
|
|
UNIV_INLINE
|
|
ulint
|
|
dict_index_get_space_reserve(void);
|
|
/*==============================*/
|
|
/* out: number of free bytes on page,
|
|
reserved for updates */
|
|
/*************************************************************************
|
|
Calculates the minimum record length in an index. */
|
|
|
|
ulint
|
|
dict_index_calc_min_rec_len(
|
|
/*========================*/
|
|
dict_index_t* index); /* in: index */
|
|
/*************************************************************************
|
|
Calculates new estimates for table and index statistics. The statistics
|
|
are used in query optimization. */
|
|
|
|
void
|
|
dict_update_statistics_low(
|
|
/*=======================*/
|
|
dict_table_t* table, /* in: table */
|
|
ibool has_dict_mutex);/* in: TRUE if the caller has the
|
|
dictionary mutex */
|
|
/*************************************************************************
|
|
Calculates new estimates for table and index statistics. The statistics
|
|
are used in query optimization. */
|
|
|
|
void
|
|
dict_update_statistics(
|
|
/*===================*/
|
|
dict_table_t* table); /* in: table */
|
|
/************************************************************************
|
|
Reserves the dictionary system mutex for MySQL. */
|
|
|
|
void
|
|
dict_mutex_enter_for_mysql(void);
|
|
/*============================*/
|
|
/************************************************************************
|
|
Releases the dictionary system mutex for MySQL. */
|
|
|
|
void
|
|
dict_mutex_exit_for_mysql(void);
|
|
/*===========================*/
|
|
/************************************************************************
|
|
Checks if the database name in two table names is the same. */
|
|
|
|
ibool
|
|
dict_tables_have_same_db(
|
|
/*=====================*/
|
|
/* out: TRUE if same db name */
|
|
const char* name1, /* in: table name in the form
|
|
dbname '/' tablename */
|
|
const char* name2); /* in: table name in the form
|
|
dbname '/' tablename */
|
|
/*************************************************************************
|
|
Scans from pointer onwards. Stops if is at the start of a copy of
|
|
'string' where characters are compared without case sensitivity. Stops
|
|
also at '\0'. */
|
|
|
|
const char*
|
|
dict_scan_to(
|
|
/*=========*/
|
|
/* out: scanned up to this */
|
|
const char* ptr, /* in: scan from */
|
|
const char* string);/* in: look for this */
|
|
/* Buffers for storing detailed information about the latest foreign key
|
|
and unique key errors */
|
|
extern FILE* dict_foreign_err_file;
|
|
extern mutex_t dict_foreign_err_mutex; /* mutex protecting the buffers */
|
|
|
|
extern dict_sys_t* dict_sys; /* the dictionary system */
|
|
extern rw_lock_t dict_operation_lock;
|
|
|
|
/* Dictionary system struct */
|
|
struct dict_sys_struct{
|
|
mutex_t mutex; /* mutex protecting the data
|
|
dictionary; protects also the
|
|
disk-based dictionary system tables;
|
|
this mutex serializes CREATE TABLE
|
|
and DROP TABLE, as well as reading
|
|
the dictionary data for a table from
|
|
system tables */
|
|
dulint row_id; /* the next row id to assign;
|
|
NOTE that at a checkpoint this
|
|
must be written to the dict system
|
|
header and flushed to a file; in
|
|
recovery this must be derived from
|
|
the log records */
|
|
hash_table_t* table_hash; /* hash table of the tables, based
|
|
on name */
|
|
hash_table_t* table_id_hash; /* hash table of the tables, based
|
|
on id */
|
|
UT_LIST_BASE_NODE_T(dict_table_t)
|
|
table_LRU; /* LRU list of tables */
|
|
ulint size; /* varying space in bytes occupied
|
|
by the data dictionary table and
|
|
index objects */
|
|
dict_table_t* sys_tables; /* SYS_TABLES table */
|
|
dict_table_t* sys_columns; /* SYS_COLUMNS table */
|
|
dict_table_t* sys_indexes; /* SYS_INDEXES table */
|
|
dict_table_t* sys_fields; /* SYS_FIELDS table */
|
|
};
|
|
|
|
#ifndef UNIV_NONINL
|
|
#include "dict0dict.ic"
|
|
#endif
|
|
|
|
#endif
|