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| author | Jeff Davis | 2025-12-16 19:13:17 +0000 |
|---|---|---|
| committer | Jeff Davis | 2025-12-16 20:57:00 +0000 |
| commit | 7f007e4a044a713df5320fca09621d6ba8e632ba (patch) | |
| tree | 160672377262ef049e5454e35bd86f050aca6d68 /src/backend/utils/adt/like_support.c | |
| parent | 24bf379cb15162514b01fc9fd05420a0203b82e9 (diff) | |
Previously, ltree_prefix_eq_ci() used lowercasing with the default
collation; while ltree_crc32_sz() used tolower() directly. These were
equivalent only if the default collation provider was libc and the
encoding was single-byte.
Change both to use casefolding with the default collation.
Backpatch through 18, where the casefolding APIs were introduced. The
bug exists in earlier versions, but would require some adaptation.
A REINDEX is required for ltree indexes where the database default
collation is not libc.
Reviewed-by: Chao Li <li.evan.chao@gmail.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Backpatch-through: 18
Discussion: https://postgr.es/m/450ceb6260cad30d7afdf155d991a9caafee7c0d.camel@j-davis.com
Discussion: https://postgr.es/m/01fc00fd66f641b9693d4f9f1af0ccf44cbdfbdf.camel@j-davis.com
Diffstat (limited to 'src/backend/utils/adt/like_support.c')
0 files changed, 0 insertions, 0 deletions