Error when upgrade to 6.16 from 6.15

This error show up when I Upgrade drupal core from 6.15 to 6.16

    * warning: pg_query() [function.pg-query]: Query failed: ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list in /home/forum/drupal-6.16/includes/database.pgsql.inc on line 139.
    * user warning: query: SELECT DISTINCT t.* FROM term_node r INNER JOIN term_data t ON r.tid = t.tid INNER JOIN vocabulary v ON t.vid = v.vid LEFT JOIN forum_access fa ON t.tid = fa.tid LEFT JOIN acl acl_fa ON acl_fa.name = CAST(t.tid AS VARCHAR) AND acl_fa.module = 'forum_access' LEFT JOIN acl_user aclu_fa ON aclu_fa.acl_id = acl_fa.acl_id AND aclu_fa.uid = 0 WHERE ((fa.grant_view >= 1 AND fa.rid IN (1)) OR fa.tid IS NULL OR aclu_fa.uid = 0) AND ( r.vid = 318 )ORDER BY v.weight, t.weight, t.name in /home/forum/drupal-6.16/modules/taxonomy/taxonomy.module on line 617.
    * warning: pg_query() [function.pg-query]: Query failed: ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list in /home/forum/drupal-6.16/includes/database.pgsql.inc on line 139.
    * user warning: query: SELECT DISTINCT t.* FROM term_node r INNER JOIN term_data t ON r.tid = t.tid INNER JOIN vocabulary v ON t.vid = v.vid LEFT JOIN forum_access fa ON t.tid = fa.tid LEFT JOIN acl acl_fa ON acl_fa.name = CAST(t.tid AS VARCHAR) AND acl_fa.module = 'forum_access' LEFT JOIN acl_user aclu_fa ON aclu_fa.acl_id = acl_fa.acl_id AND aclu_fa.uid = 0 WHERE ((fa.grant_view >= 1 AND fa.rid IN (1)) OR fa.tid IS NULL OR aclu_fa.uid = 0) AND ( r.vid = 316 )ORDER BY v.weight, t.weight, t.name in /home/forum/drupal-6.16/modules/taxonomy/taxonomy.module on line 617.
    * warning: pg_query() [function.pg-query]: Query failed: ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list in /home/forum/drupal-6.16/includes/database.pgsql.inc on line 139.
    * user warning: query: SELECT DISTINCT t.* FROM term_node r INNER JOIN term_data t ON r.tid = t.tid INNER JOIN vocabulary v ON t.vid = v.vid LEFT JOIN forum_access fa ON t.tid = fa.tid LEFT JOIN acl acl_fa ON acl_fa.name = CAST(t.tid AS VARCHAR) AND acl_fa.module = 'forum_access' LEFT JOIN acl_user aclu_fa ON aclu_fa.acl_id = acl_fa.acl_id AND aclu_fa.uid = 0 WHERE ((fa.grant_view >= 1 AND fa.rid IN (1)) OR fa.tid IS NULL OR aclu_fa.uid = 0) AND ( r.vid = 315 )ORDER BY v.weight, t.weight, t.name in /home/forum/drupal-6.16/modules/taxonomy/taxonomy.module on line 617.
    * warning: pg_query() [function.pg-query]: Query failed: ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list in /home/forum/drupal-6.16/includes/database.pgsql.inc on line 139.
    * user warning: query: SELECT DISTINCT t.* FROM term_node r INNER JOIN term_data t ON r.tid = t.tid INNER JOIN vocabulary v ON t.vid = v.vid LEFT JOIN forum_access fa ON t.tid = fa.tid LEFT JOIN acl acl_fa ON acl_fa.name = CAST(t.tid AS VARCHAR) AND acl_fa.module = 'forum_access' LEFT JOIN acl_user aclu_fa ON aclu_fa.acl_id = acl_fa.acl_id AND aclu_fa.uid = 0 WHERE ((fa.grant_view >= 1 AND fa.rid IN (1)) OR fa.tid IS NULL OR aclu_fa.uid = 0) AND ( r.vid = 314 )ORDER BY v.weight, t.weight, t.name in /home/forum/drupal-6.16/modules/taxonomy/taxonomy.module on line 617.
    * warning: pg_query() [function.pg-query]: Query failed: ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list in /home/forum/drupal-6.16/includes/database.pgsql.inc on line 139.
    * user warning: query: SELECT DISTINCT t.* FROM term_node r INNER JOIN term_data t ON r.tid = t.tid INNER JOIN vocabulary v ON t.vid = v.vid LEFT JOIN forum_access fa ON t.tid = fa.tid LEFT JOIN acl acl_fa ON acl_fa.name = CAST(t.tid AS VARCHAR) AND acl_fa.module = 'forum_access' LEFT JOIN acl_user aclu_fa ON aclu_fa.acl_id = acl_fa.acl_id AND aclu_fa.uid = 0 WHERE ((fa.grant_view >= 1 AND fa.rid IN (1)) OR fa.tid IS NULL OR aclu_fa.uid = 0) AND ( r.vid = 313 )ORDER BY v.weight, t.weight, t.name in /home/forum/drupal-6.16/modules/taxonomy/taxonomy.module on line 617.
    * warning: pg_query() [function.pg-query]: Query failed: ERROR: for SELECT DISTINCT, ORDER BY expressions must appear in select list in /home/forum/drupal-6.16/includes/database.pgsql.inc on line 139.
    * user warning: query: SELECT DISTINCT t.* FROM term_node r INNER JOIN term_data t ON r.tid = t.tid INNER JOIN vocabulary v ON t.vid = v.vid LEFT JOIN forum_access fa ON t.tid = fa.tid LEFT JOIN acl acl_fa ON acl_fa.name = CAST(t.tid AS VARCHAR) AND acl_fa.module = 'forum_access' LEFT JOIN acl_user aclu_fa ON aclu_fa.acl_id = acl_fa.acl_id AND aclu_fa.uid = 0 WHERE ((fa.grant_view >= 1 AND fa.rid IN (1)) OR fa.tid IS NULL OR aclu_fa.uid = 0) AND ( r.vid = 312 )ORDER BY v.weight, t.weight, t.name in /home/forum/drupal-6.16/modules/taxonomy/taxonomy.module on line 617.