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Clearly document that timestamp alone means timestamp without timezone,

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per SQL standard, and mention 7.3 behavior at the end.
This commit is contained in:
Bruce Momjian 2010-02-25 18:16:53 +00:00
parent 413d34be4e
commit bfd0cd5568
1 changed files with 6 additions and 4 deletions
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10
doc/src/sgml/datatype.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.244 2010/02/24 15:54:31 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/datatype.sgml,v 1.245 2010/02/25 18:16:53 momjian Exp $ -->
<chapter id="datatype">
<title id="datatype-title">Data Types</title>
@ -1523,9 +1523,11 @@ SELECT E'\\xDEADBEEF';
<note>
<para>
Prior to <productname>PostgreSQL</productname> 7.3, writing just
<type>timestamp</type> was equivalent to <type>timestamp with
time zone</type>. This was changed for SQL compliance.
The SQL standard requires that writing just <type>timestamp</type>
be equivalent to <type>timestamp <emphasis>without</> time
zone</type>, and <productname>PostgreSQL</productname> honors that
behavior. (Releases prior to 7.3 treated it as <type>timestamp
with time zone</type>.)
</para>
</note>