Re: Regression with large XML data input

Tom Lane <tgl@sss.pgh.pa.us>

From: Tom Lane <tgl@sss.pgh.pa.us>

To: Michael Paquier <michael@paquier.xyz>

Cc: Postgres hackers <pgsql-hackers@lists.postgresql.org>, Erik Wienhold <ewie@ewie.name>

Date: 2025-07-24T18:57:29Z

Lists: pgsql-hackers

Michael Paquier <michael@paquier.xyz> writes:
>>> A customer has reported a regression with the parsing of rather large
>>> XML data, introduced by the set of backpatches done with f68d6aabb7e2
>>> & friends.

BTW, further testing shows that the same failure occurs at
f68d6aabb7e2^.  So AFAICS, the answer as to why the behavior
changed there is that it didn't.

			regards, tom lane

Commits

Remove unnecessary complication around xmlParseBalancedChunkMemory.
- 902f92221889 19 (unreleased) landed
- cdcdabce5b70 14.19 landed
- 0ae824704070 13.22 landed
- 0928e18eb85a 15.14 landed
- d5f014d897c8 18.0 landed
- 762c6d8d26e0 16.10 landed
- 7571e0f6e924 17.6 landed
Avoid regression in the size of XML input that we will accept.
- 6d5e493b4a15 16.10 landed
- 589d6e6408b4 13.22 landed
- 0ffbd345e43d 15.14 landed
- 0395464aff02 14.19 landed
- fd4ad33fe223 17.6 landed
- 71c0921b649d 19 (unreleased) landed
- 637ead2e1aa1 18.0 landed
Use xmlParseInNodeContext not xmlParseBalancedChunkMemory.
- 6082b3d5d3d1 18.0 cited
Revert "Add support for parsing of large XML data (>= 10MB)"
- f2743a7d70e7 17.0 cited