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https://dev.mysql.com/doc/internals/en/calling-sequence.html
For simple non-grouping queries only Section 18.1.3, “send_row()” is called once for each result row. For grouping queries add() is called once for each source row. Section 18.1.5, “end_group()” is called once at the end of each group ...
https://dev.mysql.com/doc/internals/en/capability-flags.html
Value 0x00000001 CLIENT_FOUND_ROWS Send found rows instead of affected rows in EOF_Packet. Client Expects an OK (instead of EOF) after the resultset rows of a Text Resultset. Although the OK packet is extensible, the EOF packet is not due to the ...
https://dev.mysql.com/doc/internals/en/index-last.html
Parameters buf - byte array to be populated with matching row. Usage Advance to last row in index and return row in buffer. Synopsis virtual int index_last ( buf); byte * buf ; Description This is the index_last method.
https://dev.mysql.com/doc/internals/en/logging-transactions-rules-for-create-table-select.html
(R-log-create-select-row-format) If logging in row format (that is, one of the following holds: (1) @@SESSION.binlog_format=ROW; (2) @@SESSION.binlog_format=MIXED and statement is unsafe): If the TEMPORARY keyword is used, do not write anything. If ...(R-log-create-select-statement-format) If logging in statement format (that is, one of the following holds: (1) @@SESSION.binlog_format=STATEMENT; (2) @@SESSION.binlog_format=MIXED and statement is safe): If there is an error, do not write ...
https://dev.mysql.com/doc/internals/en/myisammrg-directory.html
As with other table handlers, you'll find that the *.c files in the myissammrg directory have counterparts in the myisam directory. In fact, this general description of a myisammrg program is almost always true: The myisammrg function checks an ...
https://dev.mysql.com/doc/internals/en/records-in-range.html
Synopsis virtual ha_rows records_in_range ( inx, min_key, max_key); uint inx ; key_range * min_key ; key_range * max_key ; Description This is the records_in_range method. Given a starting key, and an ending key estimate the number of rows that will ... Purpose For the given range how many records are estimated to be in this ...
https://dev.mysql.com/doc/relnotes/connector-cpp/en/news-8-0-6.html
For X DevAPI, CollectionFind and TableSelect implement .lockExclusive() and .lockShared() methods, which request exclusive or shared locks, respectively, on returned documents or rows. For X DevAPI for C, the new mysqlx_set_locking(stmt, lock) ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-metric-insertdelayed-activity-category.html
Table 6.19 Insert Delayed Activity Metrics NameDescriptionErrors (Delta) The number of rows written with INSERT DELAYED for which some error occurred (probably duplicate key). Not Flushed Delayed Rows (Delta) The number of rows waiting to be written ... Lists the Insert Delayed Activity metrics and provides a brief description of ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-metric-sysschema-tablemetadatalockwaiters-category.html
Waiting Query Rows Affected The number of rows that the statement currently waiting has already changed. Waiting Query Rows Examined The number of rows that the statement currently waiting has already read. Lists the Sys Schema Table Metadata Lock ...
https://dev.mysql.com/doc/x-devapi-userguide/en/collection-modify.html
The modify(SearchConditionStr) function is for modifying documents in a collection, similar to an UPDATE statement for an SQL database. It takes a search condition string (SearchConditionStr) as a parameter to specify the documents that are to be ...