Issue status update for http://drupal.org/node/22911 Post a follow up: http://drupal.org/project/comments/add/22911 Project: Drupal Version: cvs Component: database system Category: bug reports Priority: critical Assigned to: Anonymous Reported by: kinai Updated by: Cvbge Status: patch (ready to be committed) Attachment: http://drupal.org/files/issues/drupal-head-lock.diff (2.82 KB) Attached updated patch for current head. Cvbge Previous comments: ------------------------------------------------------------------------ Sun, 15 May 2005 14:34:48 +0000 : kinai I get this error : Warning: pg_query() [function.pg-query]: Query failed: ERROR: syntax error on or near "cache" at character 13 in /var/www/drupal/includes/database.pgsql.inc on line 45 Fatal error: ERROR: syntax error on or near "cache" at character 13 query: LOCK TABLES cache WRITE in /var/www/drupal/includes/database.pgsql.inc on line 62 Someone could solve this problem ? Thanks kinaï ------------------------------------------------------------------------ Sun, 15 May 2005 15:19:26 +0000 : kinai The SQL Command : LOCK TABLES like used in bootstrap.inc is only specified for MySQL, not for PostgreSQL. The UNLOCK TABLES SQL command is not implemented in PostgreSQL. Someone could solve this problem ? Thanks, Kinaï ------------------------------------------------------------------------ Sat, 28 May 2005 23:34:03 +0000 : bd_csmc this issue still exists, i've verified it on a fresh cvs install w/ pgsql 8 ------------------------------------------------------------------------ Sat, 28 May 2005 23:39:52 +0000 : bd_csmc i fixed the problem in my installation, by changing the syntax to: LOCK TABLE {cache} it's table, not tables. and i dropped the 'write' bit. furthermore, pgsql does not support the UNLOCK command, so i had to comment the unlock tables command. unless there are more lock/unlock commands elsewhere in the code, this works fine for me. according to pgsql docs, UNLOCK is automatically performed at transaction end, which is why there is no such command. ------------------------------------------------------------------------ Fri, 19 Aug 2005 11:29:25 +0000 : Cvbge Attachment: http://drupal.org/files/issues/locks.diff (2.91 KB) The patch adds two functions to lock and unlock tables. ------------------------------------------------------------------------ Tue, 23 Aug 2005 12:57:43 +0000 : Cvbge Attachment: http://drupal.org/files/issues/locks_0.diff (2.8 KB) Updated, without unnecessary changes. ------------------------------------------------------------------------ Tue, 23 Aug 2005 13:07:18 +0000 : chx Cvbge says he tested pgsql, I applied to a mysql one, saved system settings and looks OK. ------------------------------------------------------------------------ Tue, 23 Aug 2005 14:31:53 +0000 : Cvbge Attachment: http://drupal.org/files/issues/locks_1.diff (2.81 KB) Worked, yet not worked ... This version does not use <?php db_query("{$table}" ) ?> syntax. I promise I won't do that again! ------------------------------------------------------------------------ Thu, 25 Aug 2005 21:10:07 +0000 : Dries MySQL is happy with the singular 'LOCK TABLE' (rather than 'LOCK TABLES') which should work with both MySQL and PostgreSQL. Committed that changes to CVS. ------------------------------------------------------------------------ Thu, 25 Aug 2005 21:43:09 +0000 : Cvbge Please rollback your patch and either a) use syntax LOCK TABLE name (dropping S and WRITE, if you say that mysql support "LOCK") b) apply my patch. Postgres does not support WRITE part (as well as S part). Also locking won't work without starting transaction. You can do LOCK TABLE name only, but this lock is too excessive and won't allow even SELECTs on locked table.