MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / maintenance / archives / patch-pl-tl-il-nonunique.sql

diff --git a/maintenance/archives/patch-pl-tl-il-nonunique.sql b/maintenance/archives/patch-pl-tl-il-nonunique.sql
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+-- Make reorderings of UNIQUE indices non-UNIQUE
+-- Since 1.24, these indices have been non-UNIQUE in tables.sql.
+-- However, an earlier update from 1.15 that made the indices
+-- UNIQUE was not removed until 1.28 (T78513).
+
+DROP INDEX /*i*/pl_namespace ON /*_*/pagelinks;
+CREATE INDEX /*i*/pl_namespace ON /*_*/pagelinks (pl_namespace, pl_title, pl_from);
+DROP INDEX /*i*/tl_namespace ON /*_*/templatelinks;
+CREATE INDEX /*i*/tl_namespace ON /*_*/templatelinks (tl_namespace, tl_title, tl_from);
+DROP INDEX /*i*/il_to ON /*_*/imagelinks;
+CREATE INDEX /*i*/il_to ON /*_*/imagelinks (il_to, il_from);