From d5c577a6ce3e69417940dbba049e2abde9bd934e Mon Sep 17 00:00:00 2001 From: jian he Date: Thu, 9 Oct 2025 18:42:50 +0800 Subject: [PATCH v7 13/20] error safe for casting date to other types per pg_cast select castsource::regtype, casttarget::regtype, castfunc, castcontext,castmethod, pp.prosrc, pp.proname from pg_cast pc join pg_proc pp on pp.oid = pc.castfunc and pc.castfunc > 0 and castsource::regtype = 'date'::regtype order by castsource::regtype; castsource | casttarget | castfunc | castcontext | castmethod | prosrc | proname ------------+-----------------------------+----------+-------------+------------+------------------+------------- date | timestamp without time zone | 2024 | i | f | date_timestamp | timestamp date | timestamp with time zone | 1174 | i | f | date_timestamptz | timestamptz (2 rows) discussion: https://postgr.es/m/CADkLM=fv1JfY4Ufa-jcwwNbjQixNViskQ8jZu3Tz_p656i_4hQ@mail.gmail.com --- src/backend/utils/adt/date.c | 22 ++++++++++++++++++++-- 1 file changed, 20 insertions(+), 2 deletions(-) diff --git a/src/backend/utils/adt/date.c b/src/backend/utils/adt/date.c index 344f58b92f7..c7a3cde2d81 100644 --- a/src/backend/utils/adt/date.c +++ b/src/backend/utils/adt/date.c @@ -1350,7 +1350,16 @@ date_timestamp(PG_FUNCTION_ARGS) DateADT dateVal = PG_GETARG_DATEADT(0); Timestamp result; - result = date2timestamp(dateVal); + if (likely(!fcinfo->context)) + result = date2timestamp(dateVal); + else + { + int overflow; + + result = date2timestamp_opt_overflow(dateVal, &overflow); + if (overflow != 0) + PG_RETURN_NULL(); + } PG_RETURN_TIMESTAMP(result); } @@ -1435,7 +1444,16 @@ date_timestamptz(PG_FUNCTION_ARGS) DateADT dateVal = PG_GETARG_DATEADT(0); TimestampTz result; - result = date2timestamptz(dateVal); + if (likely(!fcinfo->context)) + result = date2timestamptz(dateVal); + else + { + int overflow; + result = date2timestamptz_opt_overflow(dateVal, &overflow); + + if (overflow != 0) + PG_RETURN_NULL(); + } PG_RETURN_TIMESTAMP(result); } -- 2.34.1