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Reject out-of-range dates in to_date().

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Dates outside the supported range could be entered, but would not print
reasonably, and operations such as conversion to timestamp wouldn't behave
sanely either.  Since this has the potential to result in undumpable table
data, it seems worth back-patching.

Hitoshi Harada
This commit is contained in:
Tom Lane 2013-01-14 15:19:48 -05:00
parent 7127293a5d
commit 5c4eb9166e
1 changed files with 6 additions and 0 deletions
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6
src/backend/utils/adt/formatting.c
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@ -3332,6 +3332,12 @@ to_date(PG_FUNCTION_ARGS)
do_to_timestamp(date_txt, fmt, &tm, &fsec);
if (!IS_VALID_JULIAN(tm.tm_year, tm.tm_mon, tm.tm_mday))
ereport(ERROR,
(errcode(ERRCODE_DATETIME_VALUE_OUT_OF_RANGE),
errmsg("date out of range: \"%s\"",
text_to_cstring(date_txt))));
result = date2j(tm.tm_year, tm.tm_mon, tm.tm_mday) - POSTGRES_EPOCH_JDATE;
PG_RETURN_DATEADT(result);