diff --git a/doc/TODO b/doc/TODO index 9394e22abc..624719f07e 100644 --- a/doc/TODO +++ b/doc/TODO @@ -2,7 +2,7 @@ PostgreSQL TODO List ==================== Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us) -Last updated: Mon Apr 24 18:59:31 EDT 2006 +Last updated: Mon Apr 24 20:00:38 EDT 2006 The most recent version of this document can be viewed at http://www.postgresql.org/docs/faqs.TODO.html. @@ -241,13 +241,29 @@ Data Types o Add ISO INTERVAL handling o -Add support for day-time syntax, INTERVAL '1 2:03:04' DAY TO SECOND - o Fix SELECT INTERVAL '1' MONTH + o Support ISO INTERVAL syntax if units cannot be determined from + the string, and are supplied after the string + + 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'. + + 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'. + + 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. + o Add support for year-month syntax, INTERVAL '50-6' YEAR TO MONTH - o For syntax that isn't uniquely ISO or PG syntax, like '1:30' or - '1', 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' o Interpret INTERVAL '1 year' MONTH as CAST (INTERVAL '1 year' AS INTERVAL MONTH), and this should return '12 months' o Round or truncate values to the requested precision, e.g. diff --git a/doc/src/FAQ/TODO.html b/doc/src/FAQ/TODO.html index b704e82d48..58e55c44c3 100644 --- a/doc/src/FAQ/TODO.html +++ b/doc/src/FAQ/TODO.html @@ -8,7 +8,7 @@

PostgreSQL TODO List

Current maintainer: Bruce Momjian (pgman@candle.pha.pa.us)
-Last updated: Mon Apr 24 18:59:31 EDT 2006 +Last updated: Mon Apr 24 20:00:38 EDT 2006

The most recent version of this document can be viewed at
http://www.postgresql.org/docs/faqs.TODO.html. @@ -223,20 +223,35 @@ first.

-

+
  • Arrays -
    • +