pgsql: Doc: improve explanation of EXTRACT(EPOCH) for timestamp without

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-committers(at)lists(dot)postgresql(dot)org
Subject: pgsql: Doc: improve explanation of EXTRACT(EPOCH) for timestamp without
Date: 2021-01-01 20:51:43
Message-ID: E1kvROh-0004gs-Ne@gemulon.postgresql.org
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Doc: improve explanation of EXTRACT(EPOCH) for timestamp without tz.

Try to be clearer about what computation is actually happening here.

Per bug #16797 from Dana Burd.

Discussion: https://postgr.es/m/16797-f264b0b980b53b8b@postgresql.org

Branch
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REL9_5_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/4a4cad91dab75ce25bbe4bf6b27a88b94a7eac45

Modified Files
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doc/src/sgml/func.sgml | 24 +++++++++++++++++-------
1 file changed, 17 insertions(+), 7 deletions(-)

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