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(parent: c31e9d4) | patch
On attach, consider skipping validation of subpartitions individually.
authorRobert Haas <rhaas@postgresql.org>
Thu, 5 Oct 2017 17:06:46 +0000 (13:06 -0400)
committerRobert Haas <rhaas@postgresql.org>
Thu, 5 Oct 2017 17:06:46 +0000 (13:06 -0400)
commit14f67a8ee282ebc0de78e773fbd597f460ab4a54
treecd309fe1858bd1ac7f012c963c9d89db4e061843tree | snapshot
parentc31e9d4bafd80da52408af5f87fe874c9ca0c952commit | diff
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-7af3bf77d05f@lab.ntt.co.jp
src/backend/commands/tablecmds.c diff | blob | history
src/test/regress/expected/alter_table.out diff | blob | history
src/test/regress/sql/alter_table.sql diff | blob | history
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