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| author | Dean Rasheed | 2023-11-09 12:10:14 +0000 |
|---|---|---|
| committer | Dean Rasheed | 2023-11-09 12:10:14 +0000 |
| commit | 3850d4dec1d91c4fdce274f42986840444d5593e (patch) | |
| tree | 0a9284641c901c15d11fe5329dd3530369a9ddac /src/tutorial/advanced.source | |
| parent | a4f7d33a904fcd4da7a12d249416dd2c5c5f2c1c (diff) | |
Avoid integer overflow hazard in interval_time().
When casting an interval to a time, the original code suffered from
64-bit integer overflow for inputs with a sufficiently large negative
"time" field, leading to bogus results.
Fix by rewriting the algorithm in a simpler form, that more obviously
cannot overflow. While at it, improve the test coverage to include
negative interval inputs.
Discussion: https://postgr.es/m/CAEZATCXoUKHkcuq4q63hkiPsKZJd0kZWzgKtU%2BNT0aU4wbf_Pw%40mail.gmail.com
Diffstat (limited to 'src/tutorial/advanced.source')
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