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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2023-03-17 17:47:15 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2023-03-17 17:47:19 -0400 |
| commit | 3e59e5048d0f20debe4ad79b2e02ca2a76c5daed (patch) | |
| tree | 2180e041471bef69c7f7b515ce65cd01be31c48d /src/include | |
| parent | cc1392d4aa5206d6b4dcc1b036f7a001bcac4197 (diff) | |
| download | postgresql-3e59e5048d0f20debe4ad79b2e02ca2a76c5daed.tar.gz postgresql-3e59e5048d0f20debe4ad79b2e02ca2a76c5daed.zip | |
Refactor datetime functions' timezone lookup code to reduce duplication.
We already had five copies of essentially the same logic, and an
upcoming patch introduces yet another use-case. That's past my
threshold of pain, so introduce a common subroutine. There's not
that much net code savings, but the chance of typos should go down.
Inspired by a patch from Przemysław Sztoch, but different in detail.
Discussion: https://postgr.es/m/01a84551-48dd-1359-bf7e-f6b0203a6bd0@sztoch.pl
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/utils/datetime.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/include/utils/datetime.h b/src/include/utils/datetime.h index c8f78a9f1ec..a871e3223de 100644 --- a/src/include/utils/datetime.h +++ b/src/include/utils/datetime.h @@ -295,6 +295,11 @@ typedef struct DateTimeErrorExtra const char *dtee_abbrev; /* relevant time zone abbreviation */ } DateTimeErrorExtra; +/* Result codes for DecodeTimezoneName() */ +#define TZNAME_FIXED_OFFSET 0 +#define TZNAME_DYNTZ 1 +#define TZNAME_ZONE 2 + extern void GetCurrentDateTime(struct pg_tm *tm); extern void GetCurrentTimeUsec(struct pg_tm *tm, fsec_t *fsec, int *tzp); @@ -340,6 +345,9 @@ extern int DecodeTimezoneAbbrev(int field, const char *lowtoken, extern int DecodeSpecial(int field, const char *lowtoken, int *val); extern int DecodeUnits(int field, const char *lowtoken, int *val); +extern int DecodeTimezoneName(const char *tzname, int *offset, pg_tz **tz); +extern pg_tz *DecodeTimezoneNameToTz(const char *tzname); + extern int j2day(int date); extern struct Node *TemporalSimplify(int32 max_precis, struct Node *node); |