Hi,
I have query:
select pg_stat_get_numscans(76529669),
pg_stat_get_blocks_fetched(76529669),
pg_stat_get_blocks_hit(76529669);
The result is:
pg_stat_get_numscans | pg_stat_get_blocks_fetched |
pg_stat_get_blocks_hit
----------------------+----------------------------+------------------------
0 | 23617 |
23595
(1 row)
My questions are:
1. How can index disk blocks be requested (either
from disk or cache) without index scan?
2. If I want to check if an index is used after
pg_stat_reset(), how can I get it? By number of scans
or block requests, or some other ways?
Thanks,
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