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https://dev.mysql.com/doc/internals/en/rnd-init.html
rnd_init() is called when the system wants the storage engine to do a table scan. then the second call should prepare for the new table scan (e.g if rnd_init allocates the cursor, second call should position it to the start of the table, no need to ...Synopsis virtual int rnd_init (scan); bool scan ; Description This is the rnd_init ...
https://dev.mysql.com/doc/internals/en/rnd-next.html
Purpose Reads the next row from a table and returns it to the server. The Field structure for the table is the key to getting data into buf in a manner that will allow the server to understand it. Usage This example is from the ARCHIVE storage ...
https://dev.mysql.com/doc/internals/en/update-row.html
You can do these for example by doing these: if (table->timestamp_field_type & TIMESTAMP_AUTO_SET_ON_UPDATE) table->timestamp_field->set_time(); if (table->next_number_field && record == table->record[0]) update_auto_increment(); Called from ...
https://dev.mysql.com/doc/ndbapi/en/mccj-issues.html
Known issues in ClusterJ: Joins: With ClusterJ, queries are limited to single tables. Tables are mapped one-to-one onto domain classes, and only single-table operations are supported. NDB tables support foreign keys, and foreign key constraints are ... This section discusses the limitations and known issues in the MySQL NDB Cluster Connector for Java ...
https://dev.mysql.com/doc/ndbapi/en/ndb-examples-timestamp2.html
The file timestamp2.cpp reproduced in this section provides an example of working in NDB API applications with the “new” MySQL temporal data types supporting fractional seconds. For more information working with MySQL temporal and other data ...
https://dev.mysql.com/doc/ndbapi/en/overview-compatibility.html
This is not the case when the upgrad recreates the schema and restores all data, when the new version may by default use new schema features. The NDB API is now fairly mature, and has undergone few major changes in recent releases. Where they have ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-changelog-12-1-0-2-0.html
Functionality Added or Changed The compliance framework for MySQL Configuration Metrics is added in this release. Prev Up A.11 Changes in Oracle Enterprise Manager for MySQL Database 12.1.0.3.0 (2015-10-22) Home .
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-changelog-13-2-1-0-0.html
Sys Schema Table Metadata Lock Waits: based on the schema_table_lock_waits sys schema view. For more information, see Section 6.41, “Sys Schema Table Metadata Lock Waits Metrics”. Sys Schema Table Statistics: based on the schema_table_statistics ... Important This version requires the Oracle Enterprise Manager Extensibility Development Kit ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-capabilities-category.html
Table 7.3 Capabilities Configuration Metrics NameDescriptionCompress Enabled True if the zlib compression library is available to the server, false if not. Csv Enabled True if mysqld supports CSV tables, false if not. Ndbcluster Enabled True if ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-config-metric-slowquerylogging-category.html
Table 7.32 Slow Query Logging Configuration Metrics NameDescriptionLog Queries Not Using Indexes Enabled If you are using this option with the slow query log enabled, queries that are expected to retrieve all rows are logged. Log Slow Admin ...