Fix bitshiftright()'s zero-padding some more. Commit 5ac0d9360 failed to entirely fix bitshiftright's habit of leaving one-bits in the pad space that should be all zeroes, because in a moment of sheer brain fade I'd concluded that only the code path used for not-a-multiple-of-8 shift distances needed to be fixed. Of course, a multiple-of-8 shift distance can also cause the problem, so we need to forcibly zero the extra bits in both cases.
Per bug #16037 from Alexander Lakhin. As before, back-patch to all supported branches. Discussion: https://postgr.es/m/[email protected] Branch ------ REL_10_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/9faa9794f885bd27bbb2c1f0a287d5efa8437ade Modified Files -------------- src/backend/utils/adt/varbit.c | 6 ++-- src/test/regress/expected/bit.out | 66 +++++++++++++++++++++++++++++++++++++++ src/test/regress/sql/bit.sql | 6 ++++ 3 files changed, 76 insertions(+), 2 deletions(-)
