Reproduce debug_query_string==NULL on parallel workers. Certain background workers initiate parallel queries while debug_query_string==NULL, at which point they attempted strlen(NULL) and died to SIGSEGV. Older debug_query_string observers allow NULL, so do likewise in these newer ones. Back-patch to v11, where commit 7de4a1bcc56f494acbd0d6e70781df877dc8ecb5 introduced the first of these.
Discussion: https://postgr.es/m/[email protected] Branch ------ REL_12_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/741b84e9f74726fbc97f63ddb46ab5675de98bdf Modified Files -------------- src/backend/access/nbtree/nbtsort.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-)
