Avoid extra lookups with nbtree array inequalities. nbtree index scans with SAOP inequalities (but no SAOP equalities) performed extra ORDER proc lookups for any remaining equality strategy scan keys. This could waste cycles, and caused assertion failures. Keeping around a separate ORDER proc is only necessary for a scan's non-array/non-SAOP equality scan keys when the scan has at least one other SAOP equality strategy key (a SAOP inequality shouldn't count).
To fix, replace _bt_preprocess_array_keys_final's assertion with a test that makes the function return early when the scan has no SAOP equality scan keys. Oversight in commit 1b134ca5, which enhanced nbtree ScalarArrayOp execution. Reported-By: Alexander Lakhin <exclus...@gmail.com> Discussion: https://postgr.es/m/0539d3d3-a402-0a49-ed5e-26429dffc...@gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/473411fc51157e8e825ee865c2822f976e0da5e3 Modified Files -------------- src/backend/access/nbtree/nbtutils.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
