Don't rely on uninitialized value in MERGE / DELETE
On MERGE / WHEN MATCHED DELETE it's not possible to get cross-partition
updates, so we don't initialize cpUpdateRetrySlot; however, the code was
not careful to ignore the value in that case. Make it do so.
Backpatch to 15.
Reported-by: Alexander Lakhin <exclusion@gmail.com>
Reviewed-by: Dean Rasheed <dean.a.rasheed@gmail.com>
Discussion: https://postgr.es/m/17792-0f89452029662c36@postgresql.org
Branch
------
REL_15_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/5d8ec1b9f625be800c8db93408e7c0553356fcd3
Modified Files
--------------
src/backend/executor/nodeModifyTable.c | 15 +++++++--------
1 file changed, 7 insertions(+), 8 deletions(-)