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Bruce Momjian
2006-04-25 00:06:23 +00:00
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<body bgcolor="#FFFFFF" text="#000000" link="#FF0000" vlink="#A00000" alink="#0000FF">
<h1><a name="section_1">PostgreSQL TODO List</a></h1>
<p>Current maintainer: Bruce Momjian (<a href="mailto:pgman@candle.pha.pa.us">pgman@candle.pha.pa.us</a>)<br/>
Last updated: Mon Apr 24 20:00:38 EDT 2006
Last updated: Mon Apr 24 20:06:13 EDT 2006
</p>
<p>The most recent version of this document can be viewed at<br/>
<a href="http://www.postgresql.org/docs/faqs.TODO.html">http://www.postgresql.org/docs/faqs.TODO.html</a>.
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SECOND
</li><li>Support ISO INTERVAL syntax if units cannot be determined from
the string, and are supplied after the string
<p> The SQL standard states that the units after the string specify
the units of the string, e.g. INTERVAL '2' MINUTE should
return '00:02:00'. The current behavior has the units
restrict the interval value to the specified unit or unit range,
INTERVAL '70' SECOND returns '00:00:10'.
<p> The SQL standard states that the units after the string
specify the units of the string, e.g. INTERVAL '2' MINUTE
should return '00:02:00'. The current behavior has the units
restrict the interval value to the specified unit or unit
range, INTERVAL '70' SECOND returns '00:00:10'.
</p>
<p> For syntax that isn't uniquely ISO or PG syntax, like '1' or
'1:30', treat as ISO if there is a range specification clause,
and as PG if there no clause is present, e.g. interpret
'1:30' MINUTE TO SECOND as '1 minute 30 seconds', and
interpret '1:30' as '1 hour, 30 minutes'.
and as PG if there no clause is present, e.g. interpret '1:30'
MINUTE TO SECOND as '1 minute 30 seconds', and interpret
'1:30' as '1 hour, 30 minutes'.
</p>
<p> This makes common cases like SELECT INTERVAL '1' MONTH
SQL-standard results. The SQL standard supports a limited
number of unit combinations and doesn't support unit names
in the string. The PostgreSQL syntax is more flexible in
the range of units supported, e.g. PostgreSQL supports
'1 year 1 hour', while the SQL standard does not.
<p> This makes common cases like SELECT INTERVAL '1' MONTH
SQL-standard results. The SQL standard supports a limited
number of unit combinations and doesn't support unit names in
the string. The PostgreSQL syntax is more flexible in the
range of units supported, e.g. PostgreSQL supports '1 year 1
hour', while the SQL standard does not.
</p>
</li><li>Add support for year-month syntax, INTERVAL '50-6' YEAR TO MONTH
</li><li>Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1 year' AS