Check if ii_AmCache is NULL in aminsertcleanup Fix a bug introduced by c1ec02be1d79. It may happen that the executor opens indexes on the result relation, but no rows end up being inserted. Then the index_insert_cleanup still gets executed, but passes down NULL to the AM callback. The AM callback may not expect this, as is the case of brininsertcleanup, leading to a crash.
Fixed by only calling the cleanup callback if (ii_AmCache != NULL). This way the AM can simply assume to only see a valid cache. Reported-by: Richard Guo Discussion: https://postgr.es/m/CAMbWs4-w9qC-o9hQox9UHvdVZAYTp8OrPQOKtwbvzWaRejTT=q...@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/a82ee7ef3aacc2073d3ef5f4b7e5067fa08ea76c Modified Files -------------- src/backend/access/index/indexam.c | 2 +- src/test/regress/expected/brin.out | 6 ++++++ src/test/regress/sql/brin.sql | 7 +++++++ 3 files changed, 14 insertions(+), 1 deletion(-)