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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2020-11-09 12:02:24 -0500 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2020-11-09 12:02:24 -0500 |
| commit | f47841fbad8a7f6dd579db68d782857697ad25c6 (patch) | |
| tree | 3a67270f9359a22215d353641055d06342671115 /src/backend/utils/adt/timestamp.c | |
| parent | 67029845b08d93108d53f572e2d58334c850126f (diff) | |
| download | postgresql-f47841fbad8a7f6dd579db68d782857697ad25c6.tar.gz postgresql-f47841fbad8a7f6dd579db68d782857697ad25c6.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
Diffstat (limited to 'src/backend/utils/adt/timestamp.c')
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