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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2020-11-09 12:02:24 -0500 |
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| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2020-11-09 12:02:24 -0500 |
| commit | a24cda29e2742e24dbe3af07e6ee52bd79f2ced9 (patch) | |
| tree | 13b6cc5569bb3f3fac5dea8251ea2933df181cf6 /src | |
| parent | 7b356c78f67099db0bb5dc20663adcedc273c7a0 (diff) | |
| download | postgresql-a24cda29e2742e24dbe3af07e6ee52bd79f2ced9.tar.gz postgresql-a24cda29e2742e24dbe3af07e6ee52bd79f2ced9.zip | |
Doc: clarify data type behavior of COALESCE and NULLIF.
After studying the code, NULLIF is a lot more subtle than you might
have guessed.
Discussion: https://postgr.es/m/160486028730.25500.15740897403028593550@wrigleys.postgresql.org
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