On Jul 1, 2009, at 4:15 AM, Scara Maccai wrote:
I query is using Index scan instead of Bitmap Index Scan because it
thinks that the number of rows returned will be low (12). In
fact, the number of rows returned is 120.
This happens because there are some WHERE conditions that check
Hi,
I query is using Index scan instead of Bitmap Index Scan because it thinks
that the number of rows returned will be low (12). In fact, the number of rows
returned is 120.
This happens because there are some WHERE conditions that check cross-tables
values (something like taba.col1
