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[autoinstallsdev/mediawiki.git] / maintenance / mssql / archives / patch-recentchanges-drop-fks.sql

diff --git a/maintenance/mssql/archives/patch-recentchanges-drop-fks.sql b/maintenance/mssql/archives/patch-recentchanges-drop-fks.sql
new file mode 100644 (file)
index 0000000..24f78f6
--- /dev/null
+++ b/maintenance/mssql/archives/patch-recentchanges-drop-fks.sql
@@ -0,0 +1,76 @@
+DECLARE @base nvarchar(max),
+       @SQL nvarchar(max),
+       @id sysname;--
+
+SET @base = 'ALTER TABLE /*_*/recentchanges DROP CONSTRAINT ';--
+
+SELECT @id = fk.name
+FROM sys.foreign_keys fk
+JOIN sys.foreign_key_columns fkc
+       ON fkc.constraint_object_id = fk.object_id
+JOIN sys.columns c
+       ON c.column_id = fkc.parent_column_id
+       AND c.object_id = fkc.parent_object_id
+WHERE
+       fk.parent_object_id = OBJECT_ID('/*_*/recentchanges')
+       AND fk.referenced_object_id = OBJECT_ID('/*_*/page')
+       AND c.name = 'rc_cur_id';--
+
+SET @SQL = @base + @id;--
+
+EXEC sp_executesql @SQL;--
+
+SELECT @id = fk.name
+FROM sys.foreign_keys fk
+JOIN sys.foreign_key_columns fkc
+       ON fkc.constraint_object_id = fk.object_id
+JOIN sys.columns c
+       ON c.column_id = fkc.parent_column_id
+       AND c.object_id = fkc.parent_object_id
+WHERE
+       fk.parent_object_id = OBJECT_ID('/*_*/recentchanges')
+       AND fk.referenced_object_id = OBJECT_ID('/*_*/revision')
+       AND c.name = 'rc_this_oldid';--
+
+SET @SQL = @base + @id;--
+
+EXEC sp_executesql @SQL;--
+
+SELECT @id = fk.name
+FROM sys.foreign_keys fk
+JOIN sys.foreign_key_columns fkc
+       ON fkc.constraint_object_id = fk.object_id
+JOIN sys.columns c
+       ON c.column_id = fkc.parent_column_id
+       AND c.object_id = fkc.parent_object_id
+WHERE
+       fk.parent_object_id = OBJECT_ID('/*_*/recentchanges')
+       AND fk.referenced_object_id = OBJECT_ID('/*_*/revision')
+       AND c.name = 'rc_last_oldid';--
+
+SET @SQL = @base + @id;--
+
+EXEC sp_executesql @SQL;--
+
+-- while we're at it, let's fix up the other foreign key constraints on recentchanges
+-- as future patches touch constraints on other tables, they'll take the time to update constraint names there as well
+ALTER TABLE /*_*/recentchanges DROP CONSTRAINT FK_rc_logid_log_id;--
+ALTER TABLE /*_*/recentchanges ADD CONSTRAINT rc_logid__log_id__fk FOREIGN KEY (rc_logid) REFERENCES /*_*/logging(log_id) ON DELETE CASCADE;--
+
+SELECT @id = fk.name
+FROM sys.foreign_keys fk
+JOIN sys.foreign_key_columns fkc
+       ON fkc.constraint_object_id = fk.object_id
+JOIN sys.columns c
+       ON c.column_id = fkc.parent_column_id
+       AND c.object_id = fkc.parent_object_id
+WHERE
+       fk.parent_object_id = OBJECT_ID('/*_*/recentchanges')
+       AND fk.referenced_object_id = OBJECT_ID('/*_*/mwuser')
+       AND c.name = 'rc_user';--
+
+SET @SQL = @base + @id;--
+
+EXEC sp_executesql @SQL;--
+
+ALTER TABLE /*_*/recentchanges ADD CONSTRAINT rc_user__user_id__fk FOREIGN KEY (rc_user) REFERENCES /*_*/mwuser(user_id);