The Ultimate Guide to High Availability with MariaDB

EXPLAIN FORMAT=JSON

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MariaDB starting with 10.1.2

Starting from version 10.1.2, MariaDB supports the EXPLAIN FORMAT=JSON syntax.

MariaDB's output for EXPLAIN FORMAT=JSON is different from MySQL's. There are multiple reasons for that

  • MySQL's output has deficiencies (some are listed here: EXPLAIN FORMAT=JSON in MySQL)
  • MariaDB has optimizations that MySQL does not have. Ergo, MariaDB generates query plans that MySQL does not generate.

EXPLAIN FORMAT=JSON output

[not yet complete] explain-formatjson-differences-from-mysql.

TODO: Our separate EXPLAIN FORMAT=JSON docs.

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