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MINOR: fixing the precision and casting behaviour of datetime helpers

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This commit is contained in:
Andreas Piening 2010-02-04 21:30:10 +00:00
parent 6a2fe2d48b
commit d124ad8a5a
1 changed files with 5 additions and 3 deletions
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8
code/PostgreSQLDatabase.php
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@ -1541,7 +1541,7 @@ class PostgreSQLDatabase extends SS_Database {
$date = "TIMESTAMP '$date'";
}
if($format == '%U') return "CAST(EXTRACT(epoch FROM $date) AS INT)";
if($format == '%U') return "FLOOR(EXTRACT(epoch FROM $date))";
return "to_char($date, TEXT '$format')";
@ -1570,7 +1570,9 @@ class PostgreSQLDatabase extends SS_Database {
$date = "TIMESTAMP '$date'";
}
return "CAST($date + INTERVAL '$interval' AS TIMESTAMP(0))";
// ... when being to precise becomes a pain. we need to cut of the fractions.
// TIMESTAMP(0) doesn't work because it rounds instead flooring
return "CAST(SUBSTRING(CAST($date + INTERVAL '$interval' AS VARCHAR) FROM 1 FOR 19) AS TIMESTAMP)";
}
/**
@ -1594,7 +1596,7 @@ class PostgreSQLDatabase extends SS_Database {
$date2 = "TIMESTAMP '$date2'";
}
return "CAST(EXTRACT(epoch FROM $date1) - EXTRACT(epoch from $date2) AS INT)";
return "(FLOOR(EXTRACT(epoch FROM $date1)) - FLOOR(EXTRACT(epoch from $date2)))";
}
}