diff options
Diffstat (limited to 'src/include/datatype/timestamp.h')
| -rw-r--r-- | src/include/datatype/timestamp.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/include/datatype/timestamp.h b/src/include/datatype/timestamp.h index 7d546fbe689..0583d45fad1 100644 --- a/src/include/datatype/timestamp.h +++ b/src/include/datatype/timestamp.h @@ -106,6 +106,16 @@ typedef struct #define USECS_PER_SEC INT64CONST(1000000) /* + * We allow numeric timezone offsets up to 15:59:59 either way from Greenwich. + * Currently, the record holders for wackiest offsets in actual use are zones + * Asia/Manila, at -15:56:00 until 1844, and America/Metlakatla, at +15:13:42 + * until 1867. If we were to reject such values we would fail to dump and + * restore old timestamptz values with these zone settings. + */ +#define MAX_TZDISP_HOUR 15 /* maximum allowed hour part */ +#define TZDISP_LIMIT ((MAX_TZDISP_HOUR + 1) * SECS_PER_HOUR) + +/* * DT_NOBEGIN represents timestamp -infinity; DT_NOEND represents +infinity */ #ifdef HAVE_INT64_TIMESTAMP |