neqjoinsel must now pass through collation to eqjoinsel.
Since commit 044c99bc5, eqjoinsel passes the passed-in collation
to any operators it invokes. However, neqjoinsel failed to pass
on whatever collation it got, so that if we invoked a
collation-dependent operator via that code path, we'd get "could not
determine which collation to use for string comparison" or the like.
Per report from Justin Pryzby. Back-patch to v12, like the previous
commit.
Discussion: https://postgr.es/m/20200721191606.GL5748@telsasoft.com
Branch
------
REL_12_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/171633ff5d8e21ceda5d824f3c9f13aa18a78505
Modified Files
--------------
src/backend/utils/adt/selfuncs.c | 15 +++++++++------
1 file changed, 9 insertions(+), 6 deletions(-)
