Additional fixes of memory alignment in pg_mcv_list code Commit d85e0f366a tried to fix memory alignment issues in serialization and deserialization of pg_mcv_list values, but it was a few bricks shy. The arrays of uint16 indexes in serialized items was not aligned, and the both the values and isnull flags were using the same pointer.
Per investigation by Tom Lane on gaur. Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/ea4e1c0e8f583f99c8caab5bcdfbbbaaed0685c0 Modified Files -------------- src/backend/statistics/mcv.c | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-)