mariadb-alter-table

MariaDB-specific syntax and behavior for ALTER TABLE — online DDL with ALGORITHM (DEFAULT/COPY/INPLACE/NOCOPY/INSTANT) and LOCK clauses, ALTER ONLINE TABLE shorthand, WAIT/NOWAIT lock timeouts, IF EXISTS/IF NOT EXISTS on subclauses, ADD/DROP SYSTEM VERSIONING, ADD PERIOD FOR, DROP CONSTRAINT, FORCE rebuild, CONVERT PARTITION/TABLE, DISCARD/IMPORT TABLESPACE, atomic ALTER, two-phase replication. Use when writing, generating, or reviewing ALTER TABLE statements that target MariaDB, or planning schema migrations against MariaDB.