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Add relkind checks to certain contrib modules

The contrib extensions pageinspect, pg_visibility and pgstattuple only
work against regular relations which have storage.  They don't work
against foreign tables, partitioned (parent) tables, views, et al.

Add checks to the user-callable functions to return a useful error
message to the user if they mistakenly pass an invalid relation to a
function which doesn't accept that kind of relation.

In passing, improve some of the existing checks to use ereport() instead
of elog(), add a function to consolidate common checks where
appropriate, and add some regression tests.

Author: Amit Langote, with various changes by me
Reviewed by: Michael Paquier and Corey Huinker
Discussion: https://postgr.es/m/ab91fd9d-4751-ee77-c87b-4dd704c1e59c@lab.ntt.co.jp
This commit is contained in:
Stephen Frost
2017-03-09 16:34:25 -05:00
parent b54aad8e34
commit c08d82f38e
12 changed files with 517 additions and 21 deletions

View File

@ -7,6 +7,8 @@ EXTENSION = pg_visibility
DATA = pg_visibility--1.1.sql pg_visibility--1.0--1.1.sql
PGFILEDESC = "pg_visibility - page visibility information"
REGRESS = pg_visibility
ifdef USE_PGXS
PG_CONFIG = pg_config
PGXS := $(shell $(PG_CONFIG) --pgxs)