patch-categorylinks-drop-cl_to-cl_collation.sql
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patch-categorylinks-drop-cl_to-cl_collation.sql
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	-- This file is automatically generated using maintenance/generateSchemaChangeSql.php.
	-- Source: sql/abstractSchemaChanges/patch-categorylinks-drop-cl_to-cl_collation.json
	-- Do not modify this file directly.
	-- See https://www.mediawiki.org/wiki/Manual:Schema_changes
	CREATE TEMPORARY TABLE /_/__temp__categorylinks AS
	SELECT
	cl_from,
	cl_target_id,
	cl_sortkey,
	cl_sortkey_prefix,
	cl_timestamp,
	cl_type,
	cl_collation_id
	FROM /_/categorylinks;

	DROP TABLE /_/categorylinks;


	CREATE TABLE /_/categorylinks (
	cl_from INTEGER UNSIGNED DEFAULT 0 NOT NULL,
	cl_target_id BIGINT UNSIGNED NOT NULL,
	cl_sortkey BLOB DEFAULT '' NOT NULL,
	cl_sortkey_prefix BLOB DEFAULT '' NOT NULL,
	cl_timestamp DATETIME NOT NULL,
	cl_type TEXT DEFAULT 'page' NOT NULL,
	cl_collation_id SMALLINT UNSIGNED DEFAULT 0 NOT NULL,
	PRIMARY KEY(cl_from, cl_target_id)
	);

	INSERT INTO /_/categorylinks (
	cl_from, cl_target_id, cl_sortkey,
	cl_sortkey_prefix, cl_timestamp,
	cl_type, cl_collation_id
	)
	SELECT
	cl_from,
	cl_target_id,
	cl_sortkey,
	cl_sortkey_prefix,
	cl_timestamp,
	cl_type,
	cl_collation_id
	FROM
	/_/__temp__categorylinks;

	DROP TABLE /_/__temp__categorylinks;

	CREATE INDEX cl_sortkey_id ON /_/categorylinks (
	cl_target_id, cl_type, cl_sortkey,
	cl_from
	);

	CREATE INDEX cl_timestamp_id ON /_/categorylinks (cl_target_id, cl_timestamp);