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Tom Lane 3f9132ed28 Be more wary of corrupt data in pageinspect's heap_page_items(). ... The original intent in heap_page_items() was to return nulls, not throw an error or crash, if an item was sufficiently corrupt that we couldn't safely extract data from it. However, commit d6061f83a utterly missed that memo, and not only put in an un-length-checked copy of the tuple's data section, but also managed to break the check on sane nulls-bitmap length. Either mistake could possibly lead to a SIGSEGV crash if the tuple is corrupt. Bug: #18896 Reported-by: Dmitry Kovalenko <d.kovalenko@postgrespro.ru> Author: Dmitry Kovalenko <d.kovalenko@postgrespro.ru> Reviewed-by: Tom Lane <tgl@sss.pgh.pa.us> Discussion: https://postgr.es/m/18896-add267b8e06663e3@postgresql.org Backpatch-through: 13		5 months ago
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expected	Fix contrib/pageinspect's test for sequences.	1 year ago
sql	Fix contrib/pageinspect's test for sequences.	1 year ago
.gitignore	pageinspect: Add tests	9 years ago
Makefile	Add an explicit test to catch changes in checksumming calculations.	6 years ago
brinfuncs.c	pageinspect: Fix handling of all-zero pages	3 years ago
btreefuncs.c	pageinspect: Fix handling of all-zero pages	3 years ago
fsmfuncs.c	pageinspect: Fix handling of all-zero pages	3 years ago
ginfuncs.c	pageinspect: Fix handling of all-zero pages	3 years ago
hashfuncs.c	pageinspect: Fix failure with hash_bitmap_info() for partitioned indexes	2 years ago
heapfuncs.c	Be more wary of corrupt data in pageinspect's heap_page_items().	5 months ago
pageinspect--1.0--1.1.sql	Fix typos in some error messages thrown by extension scripts when fed to psql.	11 years ago
pageinspect--1.1--1.2.sql	Fix typos in some error messages thrown by extension scripts when fed to psql.	11 years ago
pageinspect--1.2--1.3.sql	pageinspect/BRIN: minor tweaks	11 years ago
pageinspect--1.3--1.4.sql	Add forgotten file in commit d6061f83a1	10 years ago
pageinspect--1.4--1.5.sql	Update pageinspect extension for parallel query.	9 years ago
pageinspect--1.5--1.6.sql	pageinspect: Add bt_page_items function with bytea argument	9 years ago
pageinspect--1.5.sql	Update pageinspect extension for parallel query.	9 years ago
pageinspect--1.6--1.7.sql	Skip full index scan during cleanup of B-tree indexes when possible	8 years ago
pageinspect--1.7--1.8.sql	pageinspect: Fix types used for bt_metap() columns.	6 years ago
pageinspect.control	Add to pageinspect function to make t_infomask/t_infomask2 human-readable	6 years ago
pageinspect.h	Update copyrights for 2020	6 years ago
rawpage.c	pageinspect: Fix handling of all-zero pages	3 years ago