Docs: add paragraph about date/timestamp subtraction
per suggestion from Francisco Olart
Branch
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master
Details
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http://git.postgresql.org/pg/commitdiff/1c2085766187031eaeaae7db4785b9e1d4241988
Modified Files
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doc/src/sgml/func.sgml | 32 +++++++++++++++++++++++++++++++-
1 file changed, 31 insertions(+), 1 deletion(-)