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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.
520 lines
19 KiB
C
520 lines
19 KiB
C
/******************************************************
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The index tree persistent cursor
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(c) 1996 Innobase Oy
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Created 2/23/1996 Heikki Tuuri
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*******************************************************/
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#ifndef btr0pcur_h
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#define btr0pcur_h
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#include "univ.i"
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#include "dict0dict.h"
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#include "data0data.h"
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#include "mtr0mtr.h"
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#include "page0cur.h"
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#include "btr0cur.h"
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#include "btr0btr.h"
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#include "btr0types.h"
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/* Relative positions for a stored cursor position */
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#define BTR_PCUR_ON 1
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#define BTR_PCUR_BEFORE 2
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#define BTR_PCUR_AFTER 3
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/* Note that if the tree is not empty, btr_pcur_store_position does not
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use the following, but only uses the above three alternatives, where the
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position is stored relative to a specific record: this makes implementation
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of a scroll cursor easier */
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#define BTR_PCUR_BEFORE_FIRST_IN_TREE 4 /* in an empty tree */
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#define BTR_PCUR_AFTER_LAST_IN_TREE 5 /* in an empty tree */
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/******************************************************************
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Allocates memory for a persistent cursor object and initializes the cursor. */
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btr_pcur_t*
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btr_pcur_create_for_mysql(void);
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/*============================*/
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/* out, own: persistent cursor */
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/******************************************************************
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Frees the memory for a persistent cursor object. */
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void
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btr_pcur_free_for_mysql(
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/*====================*/
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btr_pcur_t* cursor); /* in, own: persistent cursor */
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/******************************************************************
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Copies the stored position of a pcur to another pcur. */
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void
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btr_pcur_copy_stored_position(
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/*==========================*/
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btr_pcur_t* pcur_receive, /* in: pcur which will receive the
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position info */
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btr_pcur_t* pcur_donate); /* in: pcur from which the info is
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copied */
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/******************************************************************
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Sets the old_rec_buf field to NULL. */
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UNIV_INLINE
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void
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btr_pcur_init(
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/*==========*/
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btr_pcur_t* pcur); /* in: persistent cursor */
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/******************************************************************
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Initializes and opens a persistent cursor to an index tree. It should be
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closed with btr_pcur_close. */
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UNIV_INLINE
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void
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btr_pcur_open(
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/*==========*/
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dict_index_t* index, /* in: index */
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dtuple_t* tuple, /* in: tuple on which search done */
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ulint mode, /* in: PAGE_CUR_L, ...;
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NOTE that if the search is made using a unique
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prefix of a record, mode should be
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PAGE_CUR_LE, not PAGE_CUR_GE, as the latter
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may end up on the previous page from the
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record! */
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ulint latch_mode,/* in: BTR_SEARCH_LEAF, ... */
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btr_pcur_t* cursor, /* in: memory buffer for persistent cursor */
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mtr_t* mtr); /* in: mtr */
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/******************************************************************
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Opens an persistent cursor to an index tree without initializing the
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cursor. */
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UNIV_INLINE
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void
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btr_pcur_open_with_no_init(
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/*=======================*/
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dict_index_t* index, /* in: index */
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dtuple_t* tuple, /* in: tuple on which search done */
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ulint mode, /* in: PAGE_CUR_L, ...;
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NOTE that if the search is made using a unique
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prefix of a record, mode should be
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PAGE_CUR_LE, not PAGE_CUR_GE, as the latter
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may end up on the previous page of the
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record! */
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ulint latch_mode,/* in: BTR_SEARCH_LEAF, ...;
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NOTE that if has_search_latch != 0 then
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we maybe do not acquire a latch on the cursor
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page, but assume that the caller uses his
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btr search latch to protect the record! */
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btr_pcur_t* cursor, /* in: memory buffer for persistent cursor */
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ulint has_search_latch,/* in: latch mode the caller
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currently has on btr_search_latch:
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RW_S_LATCH, or 0 */
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mtr_t* mtr); /* in: mtr */
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/*********************************************************************
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Opens a persistent cursor at either end of an index. */
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UNIV_INLINE
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void
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btr_pcur_open_at_index_side(
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/*========================*/
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ibool from_left, /* in: TRUE if open to the low end,
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FALSE if to the high end */
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dict_index_t* index, /* in: index */
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ulint latch_mode, /* in: latch mode */
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btr_pcur_t* pcur, /* in: cursor */
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ibool do_init, /* in: TRUE if should be initialized */
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mtr_t* mtr); /* in: mtr */
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/******************************************************************
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Gets the up_match value for a pcur after a search. */
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UNIV_INLINE
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ulint
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btr_pcur_get_up_match(
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/*==================*/
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/* out: number of matched fields at the cursor
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or to the right if search mode was PAGE_CUR_GE,
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otherwise undefined */
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btr_pcur_t* cursor); /* in: memory buffer for persistent cursor */
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/******************************************************************
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Gets the low_match value for a pcur after a search. */
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UNIV_INLINE
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ulint
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btr_pcur_get_low_match(
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/*===================*/
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/* out: number of matched fields at the cursor
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or to the right if search mode was PAGE_CUR_LE,
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otherwise undefined */
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btr_pcur_t* cursor); /* in: memory buffer for persistent cursor */
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/******************************************************************
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If mode is PAGE_CUR_G or PAGE_CUR_GE, opens a persistent cursor on the first
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user record satisfying the search condition, in the case PAGE_CUR_L or
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PAGE_CUR_LE, on the last user record. If no such user record exists, then
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in the first case sets the cursor after last in tree, and in the latter case
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before first in tree. The latching mode must be BTR_SEARCH_LEAF or
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BTR_MODIFY_LEAF. */
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void
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btr_pcur_open_on_user_rec(
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/*======================*/
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dict_index_t* index, /* in: index */
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dtuple_t* tuple, /* in: tuple on which search done */
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ulint mode, /* in: PAGE_CUR_L, ... */
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ulint latch_mode, /* in: BTR_SEARCH_LEAF or
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BTR_MODIFY_LEAF */
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btr_pcur_t* cursor, /* in: memory buffer for persistent
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cursor */
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mtr_t* mtr); /* in: mtr */
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/**************************************************************************
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Positions a cursor at a randomly chosen position within a B-tree. */
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UNIV_INLINE
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void
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btr_pcur_open_at_rnd_pos(
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/*=====================*/
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dict_index_t* index, /* in: index */
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ulint latch_mode, /* in: BTR_SEARCH_LEAF, ... */
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btr_pcur_t* cursor, /* in/out: B-tree pcur */
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mtr_t* mtr); /* in: mtr */
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/******************************************************************
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Frees the possible old_rec_buf buffer of a persistent cursor and sets the
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latch mode of the persistent cursor to BTR_NO_LATCHES. */
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UNIV_INLINE
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void
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btr_pcur_close(
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/*===========*/
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btr_pcur_t* cursor); /* in: persistent cursor */
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/******************************************************************
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The position of the cursor is stored by taking an initial segment of the
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record the cursor is positioned on, before, or after, and copying it to the
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cursor data structure, or just setting a flag if the cursor id before the
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first in an EMPTY tree, or after the last in an EMPTY tree. NOTE that the
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page where the cursor is positioned must not be empty if the index tree is
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not totally empty! */
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void
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btr_pcur_store_position(
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/*====================*/
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btr_pcur_t* cursor, /* in: persistent cursor */
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mtr_t* mtr); /* in: mtr */
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/******************************************************************
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Restores the stored position of a persistent cursor bufferfixing the page and
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obtaining the specified latches. If the cursor position was saved when the
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(1) cursor was positioned on a user record: this function restores the position
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to the last record LESS OR EQUAL to the stored record;
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(2) cursor was positioned on a page infimum record: restores the position to
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the last record LESS than the user record which was the successor of the page
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infimum;
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(3) cursor was positioned on the page supremum: restores to the first record
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GREATER than the user record which was the predecessor of the supremum.
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(4) cursor was positioned before the first or after the last in an empty tree:
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restores to before first or after the last in the tree. */
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ibool
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btr_pcur_restore_position(
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/*======================*/
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/* out: TRUE if the cursor position
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was stored when it was on a user record
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and it can be restored on a user record
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whose ordering fields are identical to
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the ones of the original user record */
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ulint latch_mode, /* in: BTR_SEARCH_LEAF, ... */
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btr_pcur_t* cursor, /* in: detached persistent cursor */
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mtr_t* mtr); /* in: mtr */
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/******************************************************************
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If the latch mode of the cursor is BTR_LEAF_SEARCH or BTR_LEAF_MODIFY,
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releases the page latch and bufferfix reserved by the cursor.
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NOTE! In the case of BTR_LEAF_MODIFY, there should not exist changes
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made by the current mini-transaction to the data protected by the
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cursor latch, as then the latch must not be released until mtr_commit. */
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void
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btr_pcur_release_leaf(
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/*==================*/
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btr_pcur_t* cursor, /* in: persistent cursor */
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mtr_t* mtr); /* in: mtr */
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/*************************************************************
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Gets the rel_pos field for a cursor whose position has been stored. */
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UNIV_INLINE
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ulint
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btr_pcur_get_rel_pos(
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/*=================*/
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/* out: BTR_PCUR_ON, ... */
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btr_pcur_t* cursor);/* in: persistent cursor */
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/*************************************************************
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Sets the mtr field for a pcur. */
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UNIV_INLINE
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void
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btr_pcur_set_mtr(
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/*=============*/
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btr_pcur_t* cursor, /* in: persistent cursor */
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mtr_t* mtr); /* in, own: mtr */
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/*************************************************************
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Gets the mtr field for a pcur. */
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UNIV_INLINE
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mtr_t*
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btr_pcur_get_mtr(
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/*=============*/
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/* out: mtr */
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btr_pcur_t* cursor); /* in: persistent cursor */
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/******************************************************************
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Commits the pcur mtr and sets the pcur latch mode to BTR_NO_LATCHES,
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that is, the cursor becomes detached. If there have been modifications
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to the page where pcur is positioned, this can be used instead of
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btr_pcur_release_leaf. Function btr_pcur_store_position should be used
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before calling this, if restoration of cursor is wanted later. */
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UNIV_INLINE
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void
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btr_pcur_commit(
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/*============*/
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btr_pcur_t* pcur); /* in: persistent cursor */
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/******************************************************************
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Differs from btr_pcur_commit in that we can specify the mtr to commit. */
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UNIV_INLINE
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void
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btr_pcur_commit_specify_mtr(
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/*========================*/
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btr_pcur_t* pcur, /* in: persistent cursor */
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mtr_t* mtr); /* in: mtr to commit */
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/******************************************************************
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Tests if a cursor is detached: that is the latch mode is BTR_NO_LATCHES. */
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UNIV_INLINE
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ibool
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btr_pcur_is_detached(
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/*=================*/
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/* out: TRUE if detached */
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btr_pcur_t* pcur); /* in: persistent cursor */
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/*************************************************************
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Moves the persistent cursor to the next record in the tree. If no records are
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left, the cursor stays 'after last in tree'. */
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UNIV_INLINE
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ibool
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btr_pcur_move_to_next(
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/*==================*/
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/* out: TRUE if the cursor was not after last
|
|
in tree */
|
|
btr_pcur_t* cursor, /* in: persistent cursor; NOTE that the
|
|
function may release the page latch */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Moves the persistent cursor to the previous record in the tree. If no records
|
|
are left, the cursor stays 'before first in tree'. */
|
|
|
|
ibool
|
|
btr_pcur_move_to_prev(
|
|
/*==================*/
|
|
/* out: TRUE if the cursor was not before first
|
|
in tree */
|
|
btr_pcur_t* cursor, /* in: persistent cursor; NOTE that the
|
|
function may release the page latch */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Moves the persistent cursor to the last record on the same page. */
|
|
UNIV_INLINE
|
|
void
|
|
btr_pcur_move_to_last_on_page(
|
|
/*==========================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Moves the persistent cursor to the next user record in the tree. If no user
|
|
records are left, the cursor ends up 'after last in tree'. */
|
|
UNIV_INLINE
|
|
ibool
|
|
btr_pcur_move_to_next_user_rec(
|
|
/*===========================*/
|
|
/* out: TRUE if the cursor moved forward,
|
|
ending on a user record */
|
|
btr_pcur_t* cursor, /* in: persistent cursor; NOTE that the
|
|
function may release the page latch */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Moves the persistent cursor to the first record on the next page.
|
|
Releases the latch on the current page, and bufferunfixes it.
|
|
Note that there must not be modifications on the current page,
|
|
as then the x-latch can be released only in mtr_commit. */
|
|
|
|
void
|
|
btr_pcur_move_to_next_page(
|
|
/*=======================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor; must be on the
|
|
last record of the current page */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Moves the persistent cursor backward if it is on the first record
|
|
of the page. Releases the latch on the current page, and bufferunfixes
|
|
it. Note that to prevent a possible deadlock, the operation first
|
|
stores the position of the cursor, releases the leaf latch, acquires
|
|
necessary latches and restores the cursor position again before returning.
|
|
The alphabetical position of the cursor is guaranteed to be sensible
|
|
on return, but it may happen that the cursor is not positioned on the
|
|
last record of any page, because the structure of the tree may have
|
|
changed while the cursor had no latches. */
|
|
|
|
void
|
|
btr_pcur_move_backward_from_page(
|
|
/*=============================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor, must be on the
|
|
first record of the current page */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Returns the btr cursor component of a persistent cursor. */
|
|
UNIV_INLINE
|
|
btr_cur_t*
|
|
btr_pcur_get_btr_cur(
|
|
/*=================*/
|
|
/* out: pointer to btr cursor component */
|
|
btr_pcur_t* cursor); /* in: persistent cursor */
|
|
/*************************************************************
|
|
Returns the page cursor component of a persistent cursor. */
|
|
UNIV_INLINE
|
|
page_cur_t*
|
|
btr_pcur_get_page_cur(
|
|
/*==================*/
|
|
/* out: pointer to page cursor component */
|
|
btr_pcur_t* cursor); /* in: persistent cursor */
|
|
/*************************************************************
|
|
Returns the page of a persistent cursor. */
|
|
UNIV_INLINE
|
|
page_t*
|
|
btr_pcur_get_page(
|
|
/*==============*/
|
|
/* out: pointer to the page */
|
|
btr_pcur_t* cursor);/* in: persistent cursor */
|
|
/*************************************************************
|
|
Returns the record of a persistent cursor. */
|
|
UNIV_INLINE
|
|
rec_t*
|
|
btr_pcur_get_rec(
|
|
/*=============*/
|
|
/* out: pointer to the record */
|
|
btr_pcur_t* cursor);/* in: persistent cursor */
|
|
/*************************************************************
|
|
Checks if the persistent cursor is on a user record. */
|
|
UNIV_INLINE
|
|
ibool
|
|
btr_pcur_is_on_user_rec(
|
|
/*====================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Checks if the persistent cursor is after the last user record on
|
|
a page. */
|
|
UNIV_INLINE
|
|
ibool
|
|
btr_pcur_is_after_last_on_page(
|
|
/*===========================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Checks if the persistent cursor is before the first user record on
|
|
a page. */
|
|
UNIV_INLINE
|
|
ibool
|
|
btr_pcur_is_before_first_on_page(
|
|
/*=============================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Checks if the persistent cursor is before the first user record in
|
|
the index tree. */
|
|
UNIV_INLINE
|
|
ibool
|
|
btr_pcur_is_before_first_in_tree(
|
|
/*=============================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Checks if the persistent cursor is after the last user record in
|
|
the index tree. */
|
|
UNIV_INLINE
|
|
ibool
|
|
btr_pcur_is_after_last_in_tree(
|
|
/*===========================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Moves the persistent cursor to the next record on the same page. */
|
|
UNIV_INLINE
|
|
void
|
|
btr_pcur_move_to_next_on_page(
|
|
/*==========================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor */
|
|
mtr_t* mtr); /* in: mtr */
|
|
/*************************************************************
|
|
Moves the persistent cursor to the previous record on the same page. */
|
|
UNIV_INLINE
|
|
void
|
|
btr_pcur_move_to_prev_on_page(
|
|
/*==========================*/
|
|
btr_pcur_t* cursor, /* in: persistent cursor */
|
|
mtr_t* mtr); /* in: mtr */
|
|
|
|
|
|
/* The persistent B-tree cursor structure. This is used mainly for SQL
|
|
selects, updates, and deletes. */
|
|
|
|
struct btr_pcur_struct{
|
|
btr_cur_t btr_cur; /* a B-tree cursor */
|
|
ulint latch_mode; /* see TODO note below!
|
|
BTR_SEARCH_LEAF, BTR_MODIFY_LEAF,
|
|
BTR_MODIFY_TREE, or BTR_NO_LATCHES,
|
|
depending on the latching state of
|
|
the page and tree where the cursor is
|
|
positioned; the last value means that
|
|
the cursor is not currently positioned:
|
|
we say then that the cursor is
|
|
detached; it can be restored to
|
|
attached if the old position was
|
|
stored in old_rec */
|
|
ulint old_stored; /* BTR_PCUR_OLD_STORED
|
|
or BTR_PCUR_OLD_NOT_STORED */
|
|
rec_t* old_rec; /* if cursor position is stored,
|
|
contains an initial segment of the
|
|
latest record cursor was positioned
|
|
either on, before, or after */
|
|
ulint old_n_fields; /* number of fields in old_rec */
|
|
ulint rel_pos; /* BTR_PCUR_ON, BTR_PCUR_BEFORE, or
|
|
BTR_PCUR_AFTER, depending on whether
|
|
cursor was on, before, or after the
|
|
old_rec record */
|
|
buf_block_t* block_when_stored;/* buffer block when the position was
|
|
stored; note that if AWE is on, frames
|
|
may move */
|
|
dulint modify_clock; /* the modify clock value of the
|
|
buffer block when the cursor position
|
|
was stored */
|
|
ulint pos_state; /* see TODO note below!
|
|
BTR_PCUR_IS_POSITIONED,
|
|
BTR_PCUR_WAS_POSITIONED,
|
|
BTR_PCUR_NOT_POSITIONED */
|
|
ulint search_mode; /* PAGE_CUR_G, ... */
|
|
trx_t* trx_if_known; /* the transaction, if we know it;
|
|
otherwise this field is not defined;
|
|
can ONLY BE USED in error prints in
|
|
fatal assertion failures! */
|
|
/*-----------------------------*/
|
|
/* NOTE that the following fields may possess dynamically allocated
|
|
memory which should be freed if not needed anymore! */
|
|
|
|
mtr_t* mtr; /* NULL, or this field may contain
|
|
a mini-transaction which holds the
|
|
latch on the cursor page */
|
|
byte* old_rec_buf; /* NULL, or a dynamically allocated
|
|
buffer for old_rec */
|
|
ulint buf_size; /* old_rec_buf size if old_rec_buf
|
|
is not NULL */
|
|
};
|
|
|
|
#define BTR_PCUR_IS_POSITIONED 1997660512 /* TODO: currently, the state
|
|
can be BTR_PCUR_IS_POSITIONED,
|
|
though it really should be
|
|
BTR_PCUR_WAS_POSITIONED,
|
|
because we have no obligation
|
|
to commit the cursor with
|
|
mtr; similarly latch_mode may
|
|
be out of date. This can
|
|
lead to problems if btr_pcur
|
|
is not used the right way;
|
|
all current code should be
|
|
ok. */
|
|
#define BTR_PCUR_WAS_POSITIONED 1187549791
|
|
#define BTR_PCUR_NOT_POSITIONED 1328997689
|
|
|
|
#define BTR_PCUR_OLD_STORED 908467085
|
|
#define BTR_PCUR_OLD_NOT_STORED 122766467
|
|
|
|
#ifndef UNIV_NONINL
|
|
#include "btr0pcur.ic"
|
|
#endif
|
|
|
|
#endif
|