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https://dev.mysql.com/doc/internals/en/optimizer-index-merge-join-type.html
See the get_index_merge_params function in the same file for Index Merge cost calculation algorithm. 7.2.2.5.1 Overview Index Merge is used when table condition can be converted to form: cond_1 OR cond_2 ... OR cond_N The conditions for conversion ...
https://dev.mysql.com/doc/ndbapi/en/ndb-ndbscanoperation.html
Setting forceSend to true means that transactions are sent immediately, as described in the previous Parameters subsection, as well as in Section 1.4.4, “The Adaptive Send Algorithm”. NdbScanOperation Class Overview NdbScanOperation::close() ...
https://dev.mysql.com/doc/relnotes/connector-net/en/news-8-0-21.html
Now, names with this format can be used when the name is enclosed properly between grave accent (`) symbols; for example, `db_1.2.3.45678`. (Bug #31237338, Bug #99371) An error was generated when the database name within a connection string that was ...
https://dev.mysql.com/doc/mysql-em-plugin/en/myoem-cluster-config-metric-sourcestatus-category.html
Rows Search Algorithm Specifies the search algorithms for applying row-based updates on replicas. Lists the Source Status configuration metrics and provides a brief description of each. Table 9.2 Source Status Configuration Metrics ...
https://dev.mysql.com/doc/heatwave/en/heatwave-system-variables.html
bulk_loader.data_memory_size Command-Line Format --bulk_loader.data_memory_size=# System Variable bulk_loader.data_memory_size Scope Global Dynamic Yes SET_VAR Hint Applies No Type Integer Default Value 1073741824 Minimum Value 67108864 Maximum ...
https://dev.mysql.com/doc/heatwave/en/mys-hw-lakehouse-limitations-avro.html
Lakehouse only supports uncompressed Avro blocks, or Avro blocks compressed with Snappy or Deflate algorithms. MySQL HeatWave Lakehouse has the following limitations for Avro files. The data in an Avro block must be no larger than 64MiB before ...
https://dev.mysql.com/doc/relnotes/heatwave/en/news-8-0-26.html
(WL #14149) Auto Scheduling The MySQL HeatWave query scheduling algorithm was improved. The revised algorithm prioritizes queries based on estimated cost and wait time in the queue, which enables dynamic, workload-aware query prioritization. (WL ...
https://dev.mysql.com/doc/relnotes/heatwave/en/news-8-3-0-u2.html
(WL #16072) MySQL HeatWave AutoML adds the PCA and GLOF algorithms to the anomaly detection task. This dynamically determines which compression algorithm to use for each column based on its data characteristics. MySQL HeatWave AutoML MySQL HeatWave ...
https://dev.mysql.com/doc/connector-j/en/connector-j-server-authentication.html
Server authentication via server certificate verification is enabled when the Connector/J connection property sslMode is set to VERIFY_CA or VERIFY_IDENTITY. If sslMode is not set, server authentication via server certificate verification is ...
https://dev.mysql.com/doc/refman/8.4/en/charset-collation-names.html
utf8mb4_turkish_ci and utf8mb4_hungarian_ci are similar but based on a less recent version of the Unicode Collation Algorithm. Collation names for Unicode character sets may include a version number to indicate the version of the Unicode Collation ... MySQL collation names follow these conventions: A collation name starts with the name of the character set with which it is associated, generally followed by one or more suffixes indicating other collation ...