On attach, consider skipping validation of subpartitions individually. If the table attached as a partition is itself partitioned, individual partitions might have constraints strong enough to skip scanning the table even if the table actually attached does not. This is pretty cheap to check, and possibly a big win if it works out.
Amit Langote, with test case changes by me. Discussion: http://postgr.es/m/1f08b844-0078-aa8d-452e-7af3bf77d...@lab.ntt.co.jp Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/14f67a8ee282ebc0de78e773fbd597f460ab4a54 Modified Files -------------- src/backend/commands/tablecmds.c | 15 +++++++++++++++ src/test/regress/expected/alter_table.out | 14 ++++++++++++++ src/test/regress/sql/alter_table.sql | 14 ++++++++++++++ 3 files changed, 43 insertions(+) -- Sent via pgsql-committers mailing list (pgsql-committers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-committers