c04732b987
We're finally to the point of making the massive alter to the `revision` table that we've been building up to for 2.5 years now. Changes here are: * Drop `rev_text_id`, `rev_content_model`, and `rev_content_format` that MCR obsoleted. * Drop `ar_text_id`, `ar_content_model`, and `ar_content_format` that MCR obsoleted. * Replace `rev_comment` with `rev_comment_id`. * Replace `rev_user` and `rev_user_text` with `rev_actor`, plus associated index changes. Future patches will make the code changes to migrate data from `revision_actor_temp` and `revision_comment_temp` into the new `revision` columns. Bug: T251343 Bug: T184615 Bug: T215466 Change-Id: I18071a2fe45907a0cf1b0fefebd96a97a2dacb7b
36 lines
1.4 KiB
PL/PgSQL
36 lines
1.4 KiB
PL/PgSQL
-- T161671, T184615, T215466: Drop old revision user, comment, and content fields, and
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-- add the replacement actor and comment_id fields.
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BEGIN;
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DROP TABLE IF EXISTS /*_*/revision_tmp;
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CREATE TABLE /*_*/revision_tmp (
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rev_id int unsigned NOT NULL PRIMARY KEY AUTO_INCREMENT,
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rev_page int unsigned NOT NULL,
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rev_comment_id bigint unsigned NOT NULL default 0,
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rev_actor bigint unsigned NOT NULL default 0,
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rev_timestamp binary(14) NOT NULL default '',
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rev_minor_edit tinyint unsigned NOT NULL default 0,
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rev_deleted tinyint unsigned NOT NULL default 0,
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rev_len int unsigned,
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rev_parent_id int unsigned default NULL,
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rev_sha1 varbinary(32) NOT NULL default ''
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) /*$wgDBTableOptions*/ MAX_ROWS=10000000 AVG_ROW_LENGTH=1024;
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INSERT OR IGNORE INTO revision_tmp (
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rev_id, rev_page, rev_timestamp, rev_minor_edit, rev_deleted, rev_len,
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rev_parent_id, rev_sha1)
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SELECT
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rev_id, rev_page, rev_timestamp, rev_minor_edit, rev_deleted, rev_len,
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rev_parent_id, rev_sha1
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FROM /*_*/revision;
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DROP TABLE /*_*/revision;
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ALTER TABLE /*_*/revision_tmp RENAME TO /*_*/revision;
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CREATE INDEX /*i*/rev_page_id ON /*_*/revision (rev_page, rev_id);
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CREATE INDEX /*i*/rev_timestamp ON /*_*/revision (rev_timestamp);
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CREATE INDEX /*i*/page_timestamp ON /*_*/revision (rev_page,rev_timestamp);
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CREATE INDEX /*i*/rev_actor_timestamp ON /*_*/revision (rev_actor,rev_timestamp);
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CREATE INDEX /*i*/rev_page_actor_timestamp ON /*_*/revision (rev_page,rev_actor,rev_timestamp);
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COMMIT;
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