eqseltest2.sql
text/plain
Filename: eqseltest2.sql
Type: text/plain
Part: 1
\set nstats 10000
alter table tint1 alter column x set statistics :nstats;
alter table tint2 alter column x set statistics :nstats;
alter table ttext1 alter column x set statistics :nstats;
alter table ttext2 alter column x set statistics :nstats;
vacuum analyze tint1, tint2, ttext1, ttext2;
\echo nstats = :nstats
select tablename, array_length(most_common_vals,1)
from pg_stats where tablename in ('tint1', 'tint2', 'ttext1', 'ttext2')
order by 1;
explain select * from tint1 t1 join tint2 t2 on t1.x = t2.x;
explain select * from ttext1 t1 join ttext2 t2 on t1.x = t2.x;