This reverts commit
f03a9ca4366d064d89b7cf7ed75d4e43f2ed0667,
in the v12 branch only. We don't want to ship v12 with that,
since it causes occasional test failures (as a result of statistics
transmission not being entirely reliable).
I'll leave it in HEAD though, in hopes that we'll eventually
capture an instance of the original problematic behavior.
14 | 355
(1 row)
--- Temporary hack to investigate whether extra vacuum/analyze is happening
-select relname, relpages, reltuples
-from pg_class
-where relname like '__star' order by relname;
- relname | relpages | reltuples
----------+----------+-----------
- a_star | 1 | 3
- b_star | 1 | 4
- c_star | 1 | 4
- d_star | 1 | 16
- e_star | 1 | 7
- f_star | 1 | 16
-(6 rows)
-
-select relname, vacuum_count, analyze_count, autovacuum_count, autoanalyze_count
-from pg_stat_all_tables
-where relname like '__star' order by relname;
- relname | vacuum_count | analyze_count | autovacuum_count | autoanalyze_count
----------+--------------+---------------+------------------+-------------------
- a_star | 1 | 0 | 0 | 0
- b_star | 1 | 0 | 0 | 0
- c_star | 1 | 0 | 0 | 0
- d_star | 1 | 0 | 0 | 0
- e_star | 1 | 0 | 0 | 0
- f_star | 1 | 0 | 0 | 0
-(6 rows)
-
-- Disable Parallel Append
alter table a_star reset (parallel_workers);
alter table b_star reset (parallel_workers);
t
(1 row)
--- Temporary hack to investigate whether extra vacuum/analyze is happening
-select relname, relpages, reltuples
-from pg_class
-where relname like '__star' order by relname;
- relname | relpages | reltuples
----------+----------+-----------
- a_star | 1 | 3
- b_star | 1 | 4
- c_star | 1 | 4
- d_star | 1 | 16
- e_star | 1 | 7
- f_star | 1 | 16
-(6 rows)
-
-select relname, vacuum_count, analyze_count, autovacuum_count, autoanalyze_count
-from pg_stat_all_tables
-where relname like '__star' order by relname;
- relname | vacuum_count | analyze_count | autovacuum_count | autoanalyze_count
----------+--------------+---------------+------------------+-------------------
- a_star | 1 | 0 | 0 | 0
- b_star | 1 | 0 | 0 | 0
- c_star | 1 | 0 | 0 | 0
- d_star | 1 | 0 | 0 | 0
- e_star | 1 | 0 | 0 | 0
- f_star | 1 | 0 | 0 | 0
-(6 rows)
-
DROP TABLE trunc_stats_test, trunc_stats_test1, trunc_stats_test2, trunc_stats_test3, trunc_stats_test4;
DROP TABLE prevstats;
-- End of Stats Test
select round(avg(aa)), sum(aa) from a_star;
select round(avg(aa)), sum(aa) from a_star a3;
--- Temporary hack to investigate whether extra vacuum/analyze is happening
-select relname, relpages, reltuples
-from pg_class
-where relname like '__star' order by relname;
-select relname, vacuum_count, analyze_count, autovacuum_count, autoanalyze_count
-from pg_stat_all_tables
-where relname like '__star' order by relname;
-
-- Disable Parallel Append
alter table a_star reset (parallel_workers);
alter table b_star reset (parallel_workers);
SELECT pr.snap_ts < pg_stat_get_snapshot_timestamp() as snapshot_newer
FROM prevstats AS pr;
--- Temporary hack to investigate whether extra vacuum/analyze is happening
-select relname, relpages, reltuples
-from pg_class
-where relname like '__star' order by relname;
-select relname, vacuum_count, analyze_count, autovacuum_count, autoanalyze_count
-from pg_stat_all_tables
-where relname like '__star' order by relname;
-
DROP TABLE trunc_stats_test, trunc_stats_test1, trunc_stats_test2, trunc_stats_test3, trunc_stats_test4;
DROP TABLE prevstats;
-- End of Stats Test