' LANGUAGE 'plpgsql';
-- do something
SELECT count(*) FROM tenk2;
- count
+ count
-------
10000
(1 row)
SELECT count(*) FROM tenk2 WHERE unique1 = 1;
- count
+ count
-------
1
(1 row)
-- let stats collector catch up
SELECT sleep('0:0:2'::interval);
- sleep
+ sleep
-------
0
(1 row)
st.idx_tup_fetch >= pr.idx_tup_fetch + 1
FROM pg_stat_user_tables AS st, pg_class AS cl, prevstats AS pr
WHERE st.relname='tenk2' AND cl.relname='tenk2';
- ?column? | ?column? | ?column? | ?column?
+ ?column? | ?column? | ?column? | ?column?
----------+----------+----------+----------
t | t | t | t
(1 row)
st.idx_blks_read + st.idx_blks_hit >= pr.idx_blks + 1
FROM pg_statio_user_tables AS st, pg_class AS cl, prevstats AS pr
WHERE st.relname='tenk2' AND cl.relname='tenk2';
- ?column? | ?column?
+ ?column? | ?column?
----------+----------
t | t
(1 row)