Re: [PATCH] Fix LTREE subpath with negative offset
Tom Lane <tgl@sss.pgh.pa.us>
From: Tom Lane <tgl@sss.pgh.pa.us>
To: Marcus Gartner <m.a.gartner@gmail.com>
Cc: pgsql-hackers@lists.postgresql.org
Date: 2025-11-01T17:04:36Z
Lists: pgsql-hackers
Marcus Gartner <m.a.gartner@gmail.com> writes: > subpath(ltree,offset,len) now correctly errors when given an offset less > than -n where n is the number of labels in the given ltree. A duplicate > block of code has been removed which allowed an offset as low as -2n. Nice catch ... as far as I can see from the git history, that mistake has been there since day one. I'm inclined to put this in master only, without a back-patch. It's not fixing any case that should work, and it seems possible that somebody out there is depending on the bogus behavior. regards, tom lane
Commits
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Fix contrib/ltree's subpath() with negative offset.
- ff8aba65d463 19 (unreleased) landed