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 Branch ------ REL9_6_STABLE Details ------- https://git.postgresql.org/pg/commitdiff/d4fb509d07c36e1839ba2a1c0d00ff18606937f6 Modified Files -------------- doc/src/sgml/func.sgml | 27 +++++++++++++++++++++++++-- doc/src/sgml/typeconv.sgml | 12 ++++++++---- 2 files changed, 33 insertions(+), 6 deletions(-)
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