May 9, 2018 · Although the instant ADD COLUMN is supported, user can still add columns in the old way. That is if user intends to add column by rebuilding the table or copying rows, then …

| ADD [COLUMN] col_name column_definition . [FIRST | AFTER col_name] | ADD [COLUMN] (col_name column_definition,...) | ADD {INDEX | KEY} [index_name] [index_type] (key_part,...) …

Mar 9, 2023 · Syntax. ALTER TABLE <table_name> ADD COLUMN <column_name> <column_type> [DEFAULT default_value] [FIRST]/[AFTER column_name], …

Oct 16, 2017 · ADD COLUMN is available for both old and new InnoDB tables. Basically you can just upgrade from MySQL 5.x or MariaDB and start adding columns instantly. Columns …

Mar 9, 2023 · Acknowledging users requests, an early implementation of ADD COLUMN with ALGORITHM=INSTANT was added in MySQL 8.0.12. This feature enables users to ADD new …

ALTER TABLE tbl_name DROP INDEX i1, ADD INDEX i1 (key_part,...) USING BTREE, ALGORITHM=INSTANT; The following table provides an overview of online DDL support for …

Sep 27, 2023 · To interpret a row, following rules can be applied: Let's see it with an example. -- INSTANT DROP C3 (version 1). Table will be T1 [c1, c2, c4] -- INSTANT ADD C5 (Version 2). …

Add the e column to the bar table and then update the primary key by issuing the following MySQL specific command : ALTER TABLE bar DROP PRIMARY KEY, ADD PRIMARY KEY …

Jun 18, 2013 · pt-online-schema-change works by creating an empty copy of the table to alter, modifying it as desired, and then copying rows from the original table into the new table. When …

Jul 1, 2015 · I'm straightly trying to add 3 new columns to a innodb mysql table which is over 10GB and is serving (read/write) online. I just used ALTER TABLE xxx add column yyy ... as …