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Improve gettimeofday() documentation.
Karl O. Pinc
1 parent 0fc9b26 commit a29d815

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doc/src/sgml/func.sgml

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@@ -1,5 +1,5 @@
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<!--
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$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.261 2005/06/28 05:08:50 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.262 2005/06/29 01:52:56 momjian Exp $
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PostgreSQL documentation
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-->
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@@ -5786,15 +5786,6 @@ SELECT LOCALTIMESTAMP;
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<function>CURRENT_TIMESTAMP</function>.
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</para>
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<para>
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There is also the function <function>timeofday()</function>, which for historical
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reasons returns a <type>text</type> string rather than a <type>timestamp</type> value:
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<screen>
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SELECT timeofday();
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<lineannotation>Result: </lineannotation><computeroutput>Sat Feb 17 19:07:32.000126 2001 EST</computeroutput>
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</screen>
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</para>
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<para>
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It is important to know that
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<function>CURRENT_TIMESTAMP</function> and related functions return
@@ -5803,8 +5794,7 @@ SELECT timeofday();
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the intent is to allow a single transaction to have a consistent
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notion of the <quote>current</quote> time, so that multiple
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modifications within the same transaction bear the same
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time stamp. <function>timeofday()</function>
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returns the wall-clock time and does advance during transactions.
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time stamp.
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</para>
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<note>
@@ -5814,6 +5804,18 @@ SELECT timeofday();
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</para>
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</note>
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<para>
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There is also the function <function>timeofday()</function> which
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returns the wall-clock time and advances during transactions. For
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historical reasons <function>timeofday()</function> returns a
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<type>text</type> string rather than a <type>timestamp</type>
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value:
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<screen>
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SELECT timeofday();
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<lineannotation>Result: </lineannotation><computeroutput>Sat Feb 17 19:07:32.000126 2001 EST</computeroutput>
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</screen>
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</para>
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<para>
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All the date/time data types also accept the special literal value
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<literal>now</literal> to specify the current date and time. Thus,

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