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Add additional example for interval multiplication. 

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 16:02:24 +00:00
parent 7ac8a4be89
commit 3086f6e4f0
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 1.298 2005/12/11 10:54:27 neilc Exp $
$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.299 2005/12/21 16:02:24 momjian Exp $
PostgreSQL documentation
-->
@ -5120,37 +5120,37 @@ 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>
@ -5168,49 +5168,55 @@ 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>