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https://dev.mysql.com/doc/internals/en/bas-ext.html
By providing a list of extensions, storage engines can in many cases omit the [custom-engine.html#custom-engine-api-reference-delete_table delete_table()] method as the MySQL server will close all references to the table and delete all files with ...
https://dev.mysql.com/doc/internals/en/binlog-row-image.html
Status of this subsection: finished, not reviewed, not fully implemented 2009-10-21 The sets of columns recorded in the BI and AI are determined by the value of binlog_row_image. To specify the sets of columns, we define the PKE (for Primary Key ...
https://dev.mysql.com/doc/internals/en/creating-index-keys.html
As part of every table-write operation (INSERT, UPDATE, DELETE), the storage engine is required to update its internal index information. In general, the storage engine will have to use row information passed in methods such as ...The method used ...
https://dev.mysql.com/doc/internals/en/custom-engine-overview.html
Custom storage engines can be built in a progressive manner: Developers can start with a read-only storage engine and later add support for INSERT, UPDATE, and DELETE operations, and even later add support for indexing, transactions, and other ...
https://dev.mysql.com/doc/internals/en/defining-filename-extensions.html
Storage engines are required to provide the MySQL server with a list of extensions used by the storage engine with regard to a given table, its data and indexes. Extensions are expected in the form of a null-terminated string array.
https://dev.mysql.com/doc/internals/en/error-flags.html
thd->count_cuted_fields If set, we generate warning for field conversations (normal case for INSERT/UPDATE/DELETE). The following flags can be examined or set to alter the behavior during error handling: thd->net.report_error thd->net.report_error ...
https://dev.mysql.com/doc/internals/en/event-meanings.html
DELETE_FILE_EVENT Used for LOAD DATA INFILE statements as of MySQL 4.0. The following descriptions briefly summarize the meaning of each event type: UNKNOWN_EVENT This event type should never occur. If an event is read from a binary log that cannot ...
https://dev.mysql.com/doc/internals/en/heap-directory.html
All the MySQL table handlers (that is, the handlers that MySQL itself produces) have files with similar names and functions. Thus, this (heap) directory contains a lot of duplication of the myisam directory (for the MyISAM table handler). Such ...
https://dev.mysql.com/doc/internals/en/info.html
Along with records a few more variables you may wish to set are: records deleted data_file_length index_file_length delete_length check_time See public variables in handler.h for more information. Called in: filesort.cc ha_heap.cc item_sum.cc ...
https://dev.mysql.com/doc/internals/en/innodb-extra-bytes.html
If you're just trying to read the record, the key bit in the Extra Bytes is 1byte_offs_flag — you need to know if 1byte_offs_flag is 1 (that is, "short 1-byteoffsets") or 0 (that is, "2-byte offsets"). Given a pointer to the Origin, InnoDB finds ...