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https://dev.mysql.com/doc/refman/8.4/en/information-schema-innodb-ft-index-cache-table.html
This value might reflect the value of an ID column that you defined for the underlying table, or it can be a sequence value generated by InnoDB when the table contains no suitable column. The INNODB_FT_INDEX_CACHE table has these columns: WORD A ...
https://dev.mysql.com/doc/refman/8.4/en/mysqlbinlog-row-events.html
The output contains an additional comment following each column change: $> mysqlbinlog -vv log_file ... However, they do not correspond exactly to the original SQL statements that generated the events. The following limitations apply: The original ... The following examples illustrate how mysqlbinlog displays row events that specify data ...
https://dev.mysql.com/doc/refman/8.4/en/nested-join-optimization.html
Suppose that a join query over 3 tables T1,T2,T3 has this form: SELECT * FROM T1 INNER JOIN T2 ON P1(T1,T2) INNER JOIN T3 ON P2(T2,T3) WHERE P(T1,T2,T3) Here, P1(T1,T2) and P2(T3,T3) are some join conditions (on expressions), whereas P(T1,T2,T3) is ...The following discussion refers to the join syntax described in Section 15.2.13.2, “JOIN ...
https://dev.mysql.com/doc/refman/8.4/en/partitioning-management-exchange.html
Table nt contains no foreign key references, and no other table has any foreign keys that refer to nt. There are no rows in nt that lie outside the boundaries of the partition definition for p. For InnoDB tables, both tables must use the same row ...
https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-6.html
(Bug #36524167) On MacOS, silenced deprecation warnings generated by Xcode 14; this includes suggestions to use snprintf(3) instead of sprintf(3), and warnings about possible loss of precision when converting from 64-bit to 32-bit integers. (Bug ...
https://dev.mysql.com/doc/mysql-ai/9.5/en/mys-ai-aml-limitations.html
MySQL HeatWave AutoML does not support TEXT columns with NULL values. MySQL HeatWave AutoML does not support target columns (a column with ground truth values) with a TEXT data type. MySQL HeatWave AutoML does not support recommendation tasks with ...Text Handling Limitations AutoML only supports datasets in the English ...
https://dev.mysql.com/doc/ndbapi/en/ndb-error-codes-single.html
Create foreign key failed - child table has Blob or Text column and on-delete-cascade is not allowed 21040 MySQL error. Key part len is to small for column 4278 MySQL error. a table without a primary key can not have an autoincremented column 4340 ... This section lists all NDB errors, ordered by NDB error ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-data-load-prerequisites.html
You can add a primary key using the following syntax: mysql> ALTER TABLE tbl_name ADD PRIMARY KEY (column); Adding a primary key is a table-rebuilding operation. Load time is affected if the primary key contains more than one column, or if the ...
https://dev.mysql.com/doc/refman/8.4/en/data-size.html
You can get better performance for a table and minimize storage space by using the techniques listed here: Table Columns Row Format Indexes Joins Normalization Table Columns Use the most efficient (smallest) data types possible. MEDIUMINT is often a ... Design your tables to minimize their space on the ...
https://dev.mysql.com/doc/refman/8.4/en/innodb-information-schema-system-tables.html
InnoDB INFORMATION_SCHEMA schema object tables include the tables listed here: INNODB_DATAFILES INNODB_TABLESTATS INNODB_FOREIGN INNODB_COLUMNS INNODB_INDEXES INNODB_FIELDS INNODB_TABLESPACES INNODB_TABLESPACES_BRIEF INNODB_FOREIGN_COLS ... You can ...