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<!--
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- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.391 2005/10/15 20 :12:32 neilc Exp $
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+ $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.392 2005/10/25 15 :12:22 momjian Exp $
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@@ -1211,13 +1211,13 @@ psql -t -f fixseq.sql db1 | psql -e db1
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Glaesemann)
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</para>
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<para>
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- Days that contain a daylight savings time adjustment are not 24
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- hours, but typically 23 or 25 hours. This change allows days
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- (not fixed 24-hour periods) to be added to dates who's result
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- includes a daylight savings time adjustment period. Therefore,
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- while in previous releases <literal>1 day</> and <literal>24
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- hours</> were interchangeable interval values, in this release
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- they are treated differently, e.g.
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+ Dates that contain a daylight savings time adjustment are not 24
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+ hours, but typically 23 or 25 hours. This change allows numeric days
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+ (not fixed 24-hour periods) to be added to dates which include
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+ a daylight savings time adjustment period. Therefore, while in
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+ previous releases <literal>1 day</> and <literal>24 hours</> were
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+ interchangeable interval values, in this release they are treated
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+ differently, e.g.
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<programlisting>
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'2005-05-03 00:00:00 EST' + '1 day' = '2005-05-04 00:00:00-04'
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'2005-05-03 00:00:00 EST' + '24 hours' = '2005-05-04 01:00:00-04'
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