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help / color / mirror / Atom feedFrom: Jeff Davis <[email protected]>
To: [email protected]
Subject: pgsql: Fix more multibyte issues in ltree.
Date: Thu, 26 Feb 2026 20:31:01 +0000
Message-ID: <[email protected]> (raw)
Fix more multibyte issues in ltree.
Commit 84d5efa7e3 missed some multibyte issues caused by short-circuit
logic in the callers. The callers assumed that if the predicate string
is longer than the label string, then it couldn't possibly be a match,
but it can be when using case-insensitive matching (LVAR_INCASE) if
casefolding changes the byte length.
Fix by refactoring to get rid of the short-circuit logic as well as
the function pointer, and consolidate the logic in a replacement
function ltree_label_match().
Discussion: https://postgr.es/m/[email protected]
Backpatch-through: 14
Branch
------
REL_16_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/3ed2c7ef7aa40e6c5c6a1bc16433f9768d98787d
Modified Files
--------------
contrib/ltree/lquery_op.c | 65 +++++++++++++++++++++++---------------------
contrib/ltree/ltree.h | 10 +++----
contrib/ltree/ltxtquery_op.c | 11 ++++----
3 files changed, 43 insertions(+), 43 deletions(-)
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