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| author | Bruce Momjian <bruce@momjian.us> | 2005-07-21 04:48:42 +0000 |
|---|---|---|
| committer | Bruce Momjian <bruce@momjian.us> | 2005-07-21 04:48:42 +0000 |
| commit | aa0f6e8d06b4c172481464eabc7d7a98d6fb5b6f (patch) | |
| tree | c2449a004d3e06f45d57dd255c317d5fde64578b | |
| parent | 9dbd00b0e22d6583d5f1f436eaaf000b73d201b1 (diff) | |
| download | postgresql-aa0f6e8d06b4c172481464eabc7d7a98d6fb5b6f.tar.gz postgresql-aa0f6e8d06b4c172481464eabc7d7a98d6fb5b6f.zip | |
Add comment marking non-exact time conversion macros.
| -rw-r--r-- | src/include/utils/timestamp.h | 11 | ||||
| -rw-r--r-- | src/interfaces/ecpg/pgtypeslib/dt.h | 9 |
2 files changed, 9 insertions, 11 deletions
diff --git a/src/include/utils/timestamp.h b/src/include/utils/timestamp.h index 2fc52d5b569..ae2ef56e0ea 100644 --- a/src/include/utils/timestamp.h +++ b/src/include/utils/timestamp.h @@ -6,7 +6,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/utils/timestamp.h,v 1.48 2005/07/21 03:56:24 momjian Exp $ + * $PostgreSQL: pgsql/src/include/utils/timestamp.h,v 1.49 2005/07/21 04:48:42 momjian Exp $ * *------------------------------------------------------------------------- */ @@ -61,13 +61,12 @@ typedef struct #define MAX_INTERVAL_PRECISION 6 /* in both timestamp.h and ecpg/dt.h */ -#define DAYS_PER_YEAR 365.25 +#define DAYS_PER_YEAR 365.25 /* assumes leap year every four years */ #define MONTHS_PER_YEAR 12 -/* average days per month */ -#define DAYS_PER_MONTH 30 -#define HOURS_PER_DAY 24 +#define DAYS_PER_MONTH 30 /* assumes exactly 30 days per month */ +#define HOURS_PER_DAY 24 /* assume no daylight savings time changes */ -#define SECS_PER_DAY 86400 +#define SECS_PER_DAY 86400 /* assumes no leap second */ #define SECS_PER_HOUR 3600 #define SECS_PER_MINUTE 60 diff --git a/src/interfaces/ecpg/pgtypeslib/dt.h b/src/interfaces/ecpg/pgtypeslib/dt.h index cda88000456..14fbd3c9878 100644 --- a/src/interfaces/ecpg/pgtypeslib/dt.h +++ b/src/interfaces/ecpg/pgtypeslib/dt.h @@ -217,13 +217,12 @@ do { \ #endif /* in both timestamp.h and ecpg/dt.h */ -#define DAYS_PER_YEAR 365.25 +#define DAYS_PER_YEAR 365.25 /* assumes leap year every four years */ #define MONTHS_PER_YEAR 12 -/* average days per month */ -#define DAYS_PER_MONTH 30 -#define HOURS_PER_DAY 24 +#define DAYS_PER_MONTH 30 /* assumes exactly 30 days per month */ +#define HOURS_PER_DAY 24 /* assume no daylight savings time changes */ -#define SECS_PER_DAY 86400 +#define SECS_PER_DAY 86400 /* assumes no leap second */ #define SECS_PER_HOUR 3600 #define SECS_PER_MINUTE 60 |