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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2020-10-17 16:02:47 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2020-10-17 16:02:47 -0400 |
| commit | 133d06f7bbf5fcf24f1fdbf0e013e30446f61abd (patch) | |
| tree | 0818af5b9490376bcb0677f03eb9f99bee668093 /src | |
| parent | 2b9166dbc66e8af937b5349023c415186c61d5ed (diff) | |
| download | postgresql-133d06f7bbf5fcf24f1fdbf0e013e30446f61abd.tar.gz postgresql-133d06f7bbf5fcf24f1fdbf0e013e30446f61abd.zip | |
Doc: caution against misuse of 'now' and related datetime literals.
Section 8.5.1.4, which defines these literals, made only a vague
reference to the fact that they might be evaluated too soon to be
safe in non-interactive contexts. Provide a more explicit caution
against misuse. Also, generalize the wording in the related tip in
section 9.9.4: while it clearly described this problem, it implied
(or really, stated outright) that the problem only applies to table
DEFAULT clauses.
Per gripe from Tijs van Dam. Back-patch to all supported branches.
Discussion: https://postgr.es/m/c2LuRv9BiRT3bqIo5mMQiVraEXey_25B4vUn0kDqVqilwOEu_iVF1tbtvLnyQK7yDG3PFaz_GxLLPil2SDkj1MCObNRVaac-7j1dVdFERk8=@thalex.com
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