pgsql: Make pg_dump emit ATTACH PARTITION instead of PARTITION OF - Mailing list pgsql-committers

From Alvaro Herrera
Subject pgsql: Make pg_dump emit ATTACH PARTITION instead of PARTITION OF
Date
Msg-id E1hJNdC-0004i2-C2@gemulon.postgresql.org
Whole thread Raw
List pgsql-committers
Make pg_dump emit ATTACH PARTITION instead of PARTITION OF

Using PARTITION OF can result in column ordering being changed from the
database being dumped, if the partition uses a column layout different
from the parent's.  It's not pg_dump's job to editorialize on table
definitions, so this is not acceptable; back-patch all the way back to
pg10, where partitioned tables where introduced.

This change also ensures that partitions end up in the correct
tablespace, if different from the parent's; this is an oversight in
ca4103025dfe (in pg12 only).  Partitioned indexes (in pg11) don't have
this problem, because they're already created as independent indexes and
attached to their parents afterwards.

This change also has the advantage that the partition is restorable from
the dump (as a standalone table) even if its parent table isn't
restored.

Author: David Rowley
Reviewed-by: Álvaro Herrera
Discussion: https://postgr.es/m/CAKJS1f_1c260nOt_vBJ067AZ3JXptXVRohDVMLEBmudX1YEx-A@mail.gmail.com
Discussion: https://postgr.es/m/20190423185007.GA27954@alvherre.pgsql

Branch
------
REL_10_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/5a191f697400560fa8f2cc11817072bf9055de73

Modified Files
--------------
src/bin/pg_dump/pg_dump.c        | 123 ++++++++++++++++-----------------------
src/bin/pg_dump/t/002_pg_dump.pl |  13 +++--
2 files changed, 58 insertions(+), 78 deletions(-)


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