Document issue with heapam line pointer truncation. Checking that an offset number isn't past the end of a heap page's line pointer array was just a defensive sanity check for HOT-chain traversal code before commit 3c3b8a4b. It's etrictly necessary now, though. Add comments that reference the issue to code in heapam that needs to get it right.
Per suggestion from Alexander Lakhin. Discussion: https://postgr.es/m/f76a292c-9170-1aef-91a0-59d9443b9...@gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/c7aeb775df895db240dcd6f47242f7e08899adfb Modified Files -------------- src/backend/access/heap/heapam.c | 11 +++++++++-- src/backend/access/heap/pruneheap.c | 22 ++++++++++++++++++---- 2 files changed, 27 insertions(+), 6 deletions(-)