Avoid duplicates in ALTER ... DEPENDS ON EXTENSION If the command is attempted for an extension that the object already depends on, silently do nothing.
In particular, this means that if a database containing multiple such entries is dumped, the restore will silently do the right thing and record just the first one. (At least, in a world where pg_dump does dump such entries -- which it doesn't currently, but it will.) Backpatch to 9.6, where this kind of dependency was introduced. Reviewed-by: Ibrar Ahmed, Tom Lane (offlist) Discussion: https://postgr.es/m/[email protected] Branch ------ REL_10_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/3dfd2d6cd28a125edc4761eaefaa1193f111459d Modified Files -------------- src/backend/catalog/pg_depend.c | 43 ++++++++++++++++++++++ src/backend/commands/alter.c | 7 +++- src/include/catalog/dependency.h | 1 + .../test_extensions/expected/test_extdepend.out | 2 + .../modules/test_extensions/sql/test_extdepend.sql | 2 + 5 files changed, 54 insertions(+), 1 deletion(-)
