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PostgreSQL TODO List
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PostgreSQL TODO List
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====================
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====================
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
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Last updated: Mon Apr 24 20:00:38 EDT 2006
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Last updated: Mon Apr 24 20:06:13 EDT 2006
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The most recent version of this document can be viewed at
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The most recent version of this document can be viewed at
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http://www.postgresql.org/docs/faqs.TODO.html.
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http://www.postgresql.org/docs/faqs.TODO.html.
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@ -244,24 +244,24 @@ Data Types
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o Support ISO INTERVAL syntax if units cannot be determined from
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o Support ISO INTERVAL syntax if units cannot be determined from
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the string, and are supplied after the string
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the string, and are supplied after the string
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The SQL standard states that the units after the string specify
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The SQL standard states that the units after the string
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the units of the string, e.g. INTERVAL '2' MINUTE should
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specify the units of the string, e.g. INTERVAL '2' MINUTE
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return '00:02:00'. The current behavior has the units
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should return '00:02:00'. The current behavior has the units
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restrict the interval value to the specified unit or unit range,
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restrict the interval value to the specified unit or unit
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INTERVAL '70' SECOND returns '00:00:10'.
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range, INTERVAL '70' SECOND returns '00:00:10'.
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For syntax that isn't uniquely ISO or PG syntax, like '1' or
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For syntax that isn't uniquely ISO or PG syntax, like '1' or
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'1:30', treat as ISO if there is a range specification clause,
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'1:30', treat as ISO if there is a range specification clause,
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and as PG if there no clause is present, e.g. interpret
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and as PG if there no clause is present, e.g. interpret '1:30'
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'1:30' MINUTE TO SECOND as '1 minute 30 seconds', and
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MINUTE TO SECOND as '1 minute 30 seconds', and interpret
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interpret '1:30' as '1 hour, 30 minutes'.
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'1:30' as '1 hour, 30 minutes'.
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This makes common cases like SELECT INTERVAL '1' MONTH
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This makes common cases like SELECT INTERVAL '1' MONTH
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SQL-standard results. The SQL standard supports a limited
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SQL-standard results. The SQL standard supports a limited
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number of unit combinations and doesn't support unit names
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number of unit combinations and doesn't support unit names in
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in the string. The PostgreSQL syntax is more flexible in
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the string. The PostgreSQL syntax is more flexible in the
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the range of units supported, e.g. PostgreSQL supports
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range of units supported, e.g. PostgreSQL supports '1 year 1
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'1 year 1 hour', while the SQL standard does not.
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hour', while the SQL standard does not.
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o Add support for year-month syntax, INTERVAL '50-6' YEAR TO MONTH
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o Add support for year-month syntax, INTERVAL '50-6' YEAR TO MONTH
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o Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1 year' AS
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o Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1 year' AS
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@ -8,7 +8,7 @@
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<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
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<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
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<h1><a name="section_1">PostgreSQL TODO List</a></h1>
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<h1><a name="section_1">PostgreSQL TODO List</a></h1>
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<p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/>
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<p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/>
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Last updated: Mon Apr 24 20:00:38 EDT 2006
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Last updated: Mon Apr 24 20:06:13 EDT 2006
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</p>
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</p>
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<p>The most recent version of this document can be viewed at<br/>
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<p>The most recent version of this document can be viewed at<br/>
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<a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
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<a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
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@ -225,24 +225,24 @@ first.
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SECOND
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SECOND
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</li><li>Support ISO INTERVAL syntax if units cannot be determined from
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</li><li>Support ISO INTERVAL syntax if units cannot be determined from
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the string, and are supplied after the string
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the string, and are supplied after the string
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<p> The SQL standard states that the units after the string specify
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<p> The SQL standard states that the units after the string
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the units of the string, e.g. INTERVAL '2' MINUTE should
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specify the units of the string, e.g. INTERVAL '2' MINUTE
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return '00:02:00'. The current behavior has the units
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should return '00:02:00'. The current behavior has the units
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restrict the interval value to the specified unit or unit range,
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restrict the interval value to the specified unit or unit
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INTERVAL '70' SECOND returns '00:00:10'.
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range, INTERVAL '70' SECOND returns '00:00:10'.
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</p>
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</p>
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<p> For syntax that isn't uniquely ISO or PG syntax, like '1' or
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<p> For syntax that isn't uniquely ISO or PG syntax, like '1' or
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'1:30', treat as ISO if there is a range specification clause,
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'1:30', treat as ISO if there is a range specification clause,
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and as PG if there no clause is present, e.g. interpret
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and as PG if there no clause is present, e.g. interpret '1:30'
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'1:30' MINUTE TO SECOND as '1 minute 30 seconds', and
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MINUTE TO SECOND as '1 minute 30 seconds', and interpret
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interpret '1:30' as '1 hour, 30 minutes'.
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'1:30' as '1 hour, 30 minutes'.
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</p>
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</p>
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<p> This makes common cases like SELECT INTERVAL '1' MONTH
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<p> This makes common cases like SELECT INTERVAL '1' MONTH
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SQL-standard results. The SQL standard supports a limited
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SQL-standard results. The SQL standard supports a limited
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number of unit combinations and doesn't support unit names
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number of unit combinations and doesn't support unit names in
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in the string. The PostgreSQL syntax is more flexible in
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the string. The PostgreSQL syntax is more flexible in the
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the range of units supported, e.g. PostgreSQL supports
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range of units supported, e.g. PostgreSQL supports '1 year 1
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'1 year 1 hour', while the SQL standard does not.
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hour', while the SQL standard does not.
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</p>
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</p>
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</li><li>Add support for year-month syntax, INTERVAL '50-6' YEAR TO MONTH
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</li><li>Add support for year-month syntax, INTERVAL '50-6' YEAR TO MONTH
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</li><li>Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1 year' AS
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</li><li>Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1 year' AS
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