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Add additional example for interval multiplication.

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Fix example for day and hours interval subtraction for new computation
method.

Update interval examples to display zero seconds, which is our default.

Backpatch to 8.1.X.
This commit is contained in:
Bruce Momjian 2005-12-21 16:02:44 +00:00
parent dacf7e774d
commit 2469b99665
1 changed files with 22 additions and 16 deletions
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38
doc/src/sgml/func.sgml
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@ -1,5 +1,5 @@
<!--
$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.291.2.3 2005/12/03 16:45:22 momjian Exp $
$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.291.2.4 2005/12/21 16:02:44 momjian Exp $
PostgreSQL documentation
-->
@ -5112,37 +5112,37 @@ SELECT SUBSTRING('XY1234Z', 'Y*?([0-9]{1,3})');
<row>
<entry> <literal>+</literal> </entry>
<entry><literal>date '2001-09-28' + interval '1 hour'</literal></entry>
<entry><literal>timestamp '2001-09-28 01:00'</literal></entry>
<entry><literal>timestamp '2001-09-28 01:00:00'</literal></entry>
</row>
<row>
<entry> <literal>+</literal> </entry>
<entry><literal>date '2001-09-28' + time '03:00'</literal></entry>
<entry><literal>timestamp '2001-09-28 03:00'</literal></entry>
<entry><literal>timestamp '2001-09-28 03:00:00'</literal></entry>
</row>
<row>
<entry> <literal>+</literal> </entry>
<entry><literal>interval '1 day' + interval '1 hour'</literal></entry>
<entry><literal>interval '1 day 01:00'</literal></entry>
<entry><literal>interval '1 day 01:00:00'</literal></entry>
</row>
<row>
<entry> <literal>+</literal> </entry>
<entry><literal>timestamp '2001-09-28 01:00' + interval '23 hours'</literal></entry>
<entry><literal>timestamp '2001-09-29 00:00'</literal></entry>
<entry><literal>timestamp '2001-09-29 00:00:00'</literal></entry>
</row>
<row>
<entry> <literal>+</literal> </entry>
<entry><literal>time '01:00' + interval '3 hours'</literal></entry>
<entry><literal>time '04:00'</literal></entry>
<entry><literal>time '04:00:00'</literal></entry>
</row>
<row>
<entry> <literal>-</literal> </entry>
<entry><literal>- interval '23 hours'</literal></entry>
<entry><literal>interval '-23:00'</literal></entry>
<entry><literal>interval '-23:00:00'</literal></entry>
</row>
<row>
@ -5160,49 +5160,55 @@ SELECT SUBSTRING('XY1234Z', 'Y*?([0-9]{1,3})');
<row>
<entry> <literal>-</literal> </entry>
<entry><literal>date '2001-09-28' - interval '1 hour'</literal></entry>
<entry><literal>timestamp '2001-09-27 23:00'</literal></entry>
<entry><literal>timestamp '2001-09-27 23:00:00'</literal></entry>
</row>
<row>
<entry> <literal>-</literal> </entry>
<entry><literal>time '05:00' - time '03:00'</literal></entry>
<entry><literal>interval '02:00'</literal></entry>
<entry><literal>interval '02:00:00'</literal></entry>
</row>
<row>
<entry> <literal>-</literal> </entry>
<entry><literal>time '05:00' - interval '2 hours'</literal></entry>
<entry><literal>time '03:00'</literal></entry>
<entry><literal>time '03:00:00'</literal></entry>
</row>
<row>
<entry> <literal>-</literal> </entry>
<entry><literal>timestamp '2001-09-28 23:00' - interval '23 hours'</literal></entry>
<entry><literal>timestamp '2001-09-28 00:00'</literal></entry>
<entry><literal>timestamp '2001-09-28 00:00:00'</literal></entry>
</row>
<row>
<entry> <literal>-</literal> </entry>
<entry><literal>interval '1 day' - interval '1 hour'</literal></entry>
<entry><literal>interval '23:00'</literal></entry>
<entry><literal>interval '1 day -01:00:00'</literal></entry>
</row>
<row>
<entry> <literal>-</literal> </entry>
<entry><literal>timestamp '2001-09-29 03:00' - timestamp '2001-09-27 12:00'</literal></entry>
<entry><literal>interval '1 day 15:00'</literal></entry>
<entry><literal>interval '1 day 15:00:00'</literal></entry>
</row>
<row>
<entry> <literal>*</literal> </entry>
<entry><literal>interval '1 hour' * double precision '3.5'</literal></entry>
<entry><literal>interval '03:30'</literal></entry>
<entry><literal>900 * interval '1 second'</literal></entry>
<entry><literal>interval '00:15:00'</literal></entry>
</row>
<row>
<entry> <literal>*</literal> </entry>
<entry><literal>double precision '3.5' * interval '1 hour'</literal></entry>
<entry><literal>interval '03:30:00'</literal></entry>
</row>
<row>
<entry> <literal>/</literal> </entry>
<entry><literal>interval '1 hour' / double precision '1.5'</literal></entry>
<entry><literal>interval '00:40'</literal></entry>
<entry><literal>interval '00:40:00'</literal></entry>
</row>
</tbody>
</tgroup>