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| author | Dean Rasheed <dean.a.rasheed@gmail.com> | 2023-11-09 09:56:31 +0000 |
|---|---|---|
| committer | Dean Rasheed <dean.a.rasheed@gmail.com> | 2023-11-09 09:56:31 +0000 |
| commit | 4f4a0010a3a1e0404198130ac3cababeaa17d1e6 (patch) | |
| tree | e6613f6d4ed673fa553d1e701d8a771a3362a606 /src/tutorial/funcs.c | |
| parent | 319310aa121285b1c7c036cb956a11bcc9d1bcb2 (diff) | |
| download | postgresql-4f4a0010a3a1e0404198130ac3cababeaa17d1e6.tar.gz postgresql-4f4a0010a3a1e0404198130ac3cababeaa17d1e6.zip | |
Fix corner-case 64-bit integer subtraction bug on some platforms.
When computing "0 - INT64_MIN", most platforms would report an
overflow error, which is correct. However, platforms without integer
overflow builtins or 128-bit integers would fail to spot the overflow,
and incorrectly return INT64_MIN.
Back-patch to all supported branches.
Patch be me. Thanks to Jian He for initial investigation, and Laurenz
Albe and Tom Lane for review.
Discussion: https://postgr.es/m/CAEZATCUNK-AZSD0jVdgkk0N%3DNcAXBWeAEX-QU9AnJPensikmdQ%40mail.gmail.com
Diffstat (limited to 'src/tutorial/funcs.c')
0 files changed, 0 insertions, 0 deletions