comparing uninitialized values.
dict_mem_table_create(): Initialize table->version_number.
ins_node_create(): Initialize node->table_version_number.
row_create_prebuilt(): Initialize all fields. Initialize most fields
by memset(), so that any fields that are added will be initialized
automatically.
to tables.
dict_mem_table_add_col(): Add the parameter "heap" for temporary memory
allocation. Allow it and "name" to be NULL. These parameters are NULL
when creating dummy indexes.
dict_add_col_name(): Remove calls to ut_malloc() and ut_free().
dict_table_get_col_name(): Allow table->col_names to be NULL.
dict_table_add_system_columns(), dict_table_add_to_cache():
Add the parameter "heap".
accessors returning pointers with macros that preserve const qualifiers.
In UNIV_DEBUG builds, retain the accessors and cast away constness there.
dfield_get_type(), dfield_get_data(), dtuple_get_nth_field(),
dict_table_get_nth_col(), dict_table_get_sys_col(): Implement as macro
unless #ifdef UNIV_DEBUG.
rec_get_nth_field(): Replace with rec_get_nth_field_offs() that does not
do pointer arithmetics. Implement rec_get_nth_field() as a macro.
of externally stored columns to REC_1BYTE_OFFS_LIMIT (128) bytes.
TODO: only store BTR_EXTERN_FIELD_REF_SIZE (20) bytes with the record,
and store the entire column externally. (Bug #22496)
dict_col_t::min_prefix: Remove.
of externally stored columns to 108 bytes when possible.
This will unmask a bug in the handling of BLOBs on compressed tablespaces,
especially of small page sizes. Apparently, the locally stored part must
be less than 235 bytes in size for the bug to occur.
dict_col_struct: Add field min_prefix.
dict_index_build_internal_non_clust(): Adjust min_prefix.
and to the file space header (FSP_PAGE_ZIP_SIZE, renamed from
FSP_LOWEST_NO_WRITE).
fil_space_struct: Add zip_size.
dict_table_struct: Embed zip_size in flags.
dict_table_zip_size(): Infer zip_size from table->flags.
dict_sys_tables_get_zip_size(): Read zip_size from SYS_TABLES.TYPE.
fil_space_get_zip_size(): Read zip_size from the file space header.
Add the redo log entry type MLOG_ZIP_FILE_CREATE.
dict_mem_table_create(): Account for DICT_TF_COMPRESSED in a debug assertion.
btr_store_big_rec_extern_fields(), btr_free_externally_stored_field(),
btr_copy_externally_stored_field(): Implement the disk format for
compressed BLOB pages.
btr_copy_externally_stored_field(): Improve error reporting and handling
when decompressing BLOB pages.
buf_flush_init_for_writing(), buf_page_is_corrupted(), buf_page_print():
Account for compressed BLOB pages (FIL_PAGE_TYPE_ZBLOB).
buf_calc_zblob_page_checksum(): New function.
