From 0059bbe1ecaa5f7f19a8b3aae059f352c02e1d88 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Thu, 3 Jul 2025 16:17:08 -0400 Subject: Break out xxx2yyy_opt_overflow APIs for more datetime conversions. Previous commits invented timestamp2timestamptz_opt_overflow, date2timestamp_opt_overflow, and date2timestamptz_opt_overflow functions to perform non-error-throwing conversions between datetime types. This patch completes the set by adding timestamp2date_opt_overflow, timestamptz2date_opt_overflow, and timestamptz2timestamp_opt_overflow. In addition, adjust timestamp2timestamptz_opt_overflow so that it doesn't throw error if timestamp2tm fails, but treats that as an overflow case. The situation probably can't arise except with an invalid timestamp value, and I can't think of a way that that would happen except data corruption. However, it's pretty silly to have a function whose entire reason for existence is to not throw errors for out-of-range inputs nonetheless throw an error for out-of-range input. The new APIs are not used in this patch, but will be needed in upcoming btree_gin changes. Author: Tom Lane Reviewed-by: Arseniy Mukhin Discussion: https://postgr.es/m/262624.1738460652@sss.pgh.pa.us --- src/include/utils/date.h | 2 ++ src/include/utils/timestamp.h | 3 +++ 2 files changed, 5 insertions(+) (limited to 'src/include') diff --git a/src/include/utils/date.h b/src/include/utils/date.h index bb5c1e57b07..abfda0b1ae9 100644 --- a/src/include/utils/date.h +++ b/src/include/utils/date.h @@ -100,6 +100,8 @@ extern int32 anytime_typmod_check(bool istz, int32 typmod); extern double date2timestamp_no_overflow(DateADT dateVal); extern Timestamp date2timestamp_opt_overflow(DateADT dateVal, int *overflow); extern TimestampTz date2timestamptz_opt_overflow(DateADT dateVal, int *overflow); +extern DateADT timestamp2date_opt_overflow(Timestamp timestamp, int *overflow); +extern DateADT timestamptz2date_opt_overflow(TimestampTz timestamp, int *overflow); extern int32 date_cmp_timestamp_internal(DateADT dateVal, Timestamp dt2); extern int32 date_cmp_timestamptz_internal(DateADT dateVal, TimestampTz dt2); diff --git a/src/include/utils/timestamp.h b/src/include/utils/timestamp.h index 8c205859c3b..93531732b08 100644 --- a/src/include/utils/timestamp.h +++ b/src/include/utils/timestamp.h @@ -144,6 +144,9 @@ extern int timestamp_cmp_internal(Timestamp dt1, Timestamp dt2); extern TimestampTz timestamp2timestamptz_opt_overflow(Timestamp timestamp, int *overflow); +extern Timestamp timestamptz2timestamp_opt_overflow(TimestampTz timestamp, + int *overflow); + extern int32 timestamp_cmp_timestamptz_internal(Timestamp timestampVal, TimestampTz dt2); -- cgit v1.2.3