]> git.ipfire.org Git - thirdparty/postgresql.git/commit
Doc: clarify data type behavior of COALESCE and NULLIF.
authorTom Lane <tgl@sss.pgh.pa.us>
Mon, 9 Nov 2020 17:02:24 +0000 (12:02 -0500)
committerTom Lane <tgl@sss.pgh.pa.us>
Mon, 9 Nov 2020 17:02:24 +0000 (12:02 -0500)
commitca0c8ea6662e2bc7c730dca8eb33a0d5bc2b1e0b
treeb3bd9b060f6fb09a19832eb6b62f214884ca8183
parenta498db87be103f93856dd515a574b2d67d3c1237
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
doc/src/sgml/func.sgml
doc/src/sgml/typeconv.sgml