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docs: Only first instance of a PREPARE parameter sets data type
authorBruce Momjian <bruce@momjian.us>
Thu, 9 Aug 2018 14:13:15 +0000 (10:13 -0400)
committerBruce Momjian <bruce@momjian.us>
Thu, 9 Aug 2018 14:13:15 +0000 (10:13 -0400)
commit7bfd381c21c841b9766227f5b65cd62fa8408780
tree14a04ea023c3bbc5f0185dd5c92bd1334c2f94e9tree | snapshot
parentd5a9b706ea93a95d9359066488c33aee33a695bccommit | diff
docs:  Only first instance of a PREPARE parameter sets data type

If the first reference to $1 is "($1 = col) or ($1 is null)", the data
type can be determined, but not for "($1 is null) or ($1 = col)".  This
change documents this.

Reported-by: Morgan Owens
Discussion: https://postgr.es/m/153233728858.1404.15268121695358514937@wrigleys.postgresql.org

Backpatch-through: 9.3
doc/src/sgml/ref/prepare.sgml diff | blob | history
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