phorge-phorge/resources/sql/patches/20131004.dxedgekey.sql

ALTER TABLE {$NAMESPACE}_differential.edge
  ADD UNIQUE KEY `key_dst` (dst, type, src);
Add a `(dst, type, src)` key to Differential's edge table Summary: Ref T1279. This came to me in a dream. The existing `differential_relationship` table has an `(objectPHID, type)` column, which theoretically is useful for queries like "revisions with X as a reviewer". In practice, I'm not sure it gets used much, but I can get it to show up in at least some query plans. Add a similar index to the `edge` table. This sequences //before// D7227, which actually migrates the data. Test Plan: - Ran `bin/storage upgrade`. - EXPLAIN'd a bunch of queries against different versions of the schema, this seemed helpful overall. Reviewers: btrahan Reviewed By: btrahan CC: aran Maniphest Tasks: T1279 Differential Revision: https://secure.phabricator.com/D7232 Conflicts: src/infrastructure/storage/patch/PhabricatorBuiltinPatchList.php 2013-10-05 13:49:22 +02:00			`ALTER TABLE {$NAMESPACE}_differential.edge`
			ADD UNIQUE KEY `key_dst` (dst, type, src);