As soon as i add the ROWS clause to a CTE FB cannot use indices available in the CTEs tables. Is this a bug, or as designed?
This: with low as ( select igc.issue_id, ia.occasion from issues_groups igc left join issues_groups igb on (igb.issue_significant_id = igc.issue_significant_id) left join issues_addressed ia on (ia.issue_id = igb.issue_id) where ia."USER" = 'a' --order by ia.occasion desc --fetch first 1 row only ) select * from issues i left join low l on (l.issue_id = i.issue_id) issues_groups, issues_addressed: Indexed reads remove the comments and issues_groups will have non-indexed reads for the join l.issue_id to i.issue_id. TIA, /Dany