Re: [PERFORM] bitmap heap scan recheck for gin/fts with no lossy blocks

2015-07-24 Thread Laurent Debacker
Thanks Jeff! That makes sense indeed. I'm a bit surprised a COUNT(1) would need a bitmap heap scan since we know the row count from the index, but okay. Have a nice day, Laurent On Thu, Jul 23, 2015 at 8:04 PM, Jeff Janes wrote: > On Thu, Jul 23, 2015 at 9:58 AM, Laurent Debacker

[PERFORM] bitmap heap scan recheck for gin/fts with no lossy blocks

2015-07-23 Thread Laurent Debacker
t; Bitmap Index Scan on enterprises_fts_idx (cost=0.00..4869.61 rows=541014 width=0) (actual time=120.214..120.214 rows=528376 loops=1)" " Index Cond: (fts @@ '''activ'''::tsquery)" " Buffers: shared hit=1 read=96" "Planning time: 2.383 ms" "Execution time: 25824.476 ms" Any advice would be greatly appreciated. I'm running PostgreSQL 9.4.1. Thank you, Laurent Debacker