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https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-ft-default-stopword-table.html
The INNODB_FT_DEFAULT_STOPWORD table holds a list of stopwords that are used by default when creating a FULLTEXT index on InnoDB tables. For information about the default InnoDB stopword list and how to define your own stopword lists, see Section ...This is not used if you override the default stopword processing with either the innodb_ft_server_stopword_table or the innodb_ft_user_stopword_table system ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-sys-indexes-table.html
0 = nonunique secondary index; 1 = automatically generated clustered index (GEN_CLUST_INDEX); 2 = unique nonclustered index; 3 = clustered index; 32 = full-text index; 64 = spatial index; 128 = secondary index on a virtual generated column. For ...
https://dev.mysql.com/doc/refman/5.7/en/information-schema-innodb-ft-index-cache-table.html
The INNODB_FT_INDEX_CACHE table provides token information about newly inserted rows in a FULLTEXT index. Before querying it, set the value of the innodb_ft_aux_table system variable to the name (including the database name) of the table that ...
https://dev.mysql.com/doc/refman/5.7/en/innodb-row-format.html
When a table is created with ROW_FORMAT=DYNAMIC, InnoDB can store long variable-length column values (for VARCHAR, VARBINARY, and BLOB and TEXT types) fully off-page, with the clustered index record containing only a 20-byte pointer to the overflow ...Tables that use the REDUNDANT row format store the first 768 bytes of variable-length column values (VARCHAR, VARBINARY, and BLOB and TEXT types) in the index record within the B-tree node, with the remainder stored on overflow ...
https://dev.mysql.com/doc/refman/5.7/en/string-functions.html
mysql> SELECT LENGTH('text'); -> 4 Note The Length() OpenGIS spatial function is named ST_Length() in MySQL. To use this function, the file must be located on the server host, you must specify the full path name to the file, and you must have the ...
https://dev.mysql.com/doc/refman/5.7/en/get-diagnostics.html
The keyword STACKED means to retrieve information from the second diagnostics area, which is available only if the current context is a condition handler. It is a MySQL extension that GET [CURRENT] DIAGNOSTICS is permitted outside handler context to ... GET [CURRENT | STACKED] DIAGNOSTICS { statement_information_item [, statement_information_item] ...
https://dev.mysql.com/doc/refman/5.7/en/mysql-cluster-programs-ndb-config.html
The dump can be produced in either text or XML format; for more information, see the discussion of the --configinfo and --xml options later in this section). This tool extracts current configuration information for data nodes, SQL nodes, and API ...
https://dev.mysql.com/doc/refman/5.7/en/group-replication-system-variables.html
These system variables must have the same value on all group members, cannot be changed while Group Replication is running, and require a full reboot of the group (a bootstrap by a server with group_replication_bootstrap_group=ON) in order for the ... This section lists the system variables that are specific to the Group Replication ...
https://dev.mysql.com/doc/refman/5.7/en/index-page-merge-threshold.html
If the “page-full” percentage for an index page falls below the MERGE_THRESHOLD value when a row is deleted or when a row is shortened by an UPDATE operation, InnoDB attempts to merge the index page with a neighboring index page. When the ...The ...
https://dev.mysql.com/doc/refman/5.7/en/ldap-pluggable-authentication.html
For connections by accounts that use this plugin, client programs use the client-side mysql_clear_password plugin, which sends the password to the server as cleartext. The client-side and server-side SASL LDAP plugins use SASL messages for secure ...