Create action triggers when partitions are detached
Detaching a partition from a partitioned table that's constrained by
foreign keys requires additional action triggers on the referenced side;
otherwise, DELETE/UPDATE actions there fail to notice rows in the table
that was partition, and so are incorrectly allowed through. With this
commit, those triggers are now created. Conversely, when a table that
has a foreign key is attached as a partition to a table that also has
the same foreign key, those action triggers are no longer needed, so we
remove them.
Add a minimal test case verifying (part of) this.
Authors: Amit Langote, Álvaro Herrera
Discussion: https://postgr.es/m/f2b8ead5-4131-d5a8-8016-2ea0a31250af@lab.ntt.co.jp
Branch
------
master
Details
-------
https://git.postgresql.org/pg/commitdiff/0464fdf07f69452dd67dd798c026d82c956bda33
Modified Files
--------------
src/backend/commands/tablecmds.c | 71 ++++++++++++++++++++++++++++++-
src/test/regress/expected/foreign_key.out | 28 +++++++++++-
src/test/regress/sql/foreign_key.sql | 19 ++++++++-
3 files changed, 113 insertions(+), 5 deletions(-)
