diff options
Diffstat (limited to 'src/include/utils/rangetypes.h')
| -rw-r--r-- | src/include/utils/rangetypes.h | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/include/utils/rangetypes.h b/src/include/utils/rangetypes.h index c9a6834e6db..307476d9762 100644 --- a/src/include/utils/rangetypes.h +++ b/src/include/utils/rangetypes.h @@ -33,13 +33,15 @@ typedef struct #define RangeTypeGetOid(r) ((r)->rangetypid) /* A range's flags byte contains these bits: */ -#define RANGE_EMPTY 0x01 /* range is empty */ -#define RANGE_LB_INC 0x02 /* lower bound is inclusive (vs exclusive) */ -#define RANGE_LB_NULL 0x04 /* lower bound is null (NOT CURRENTLY USED) */ -#define RANGE_LB_INF 0x08 /* lower bound is +/- infinity */ -#define RANGE_UB_INC 0x10 /* upper bound is inclusive (vs exclusive) */ -#define RANGE_UB_NULL 0x20 /* upper bound is null (NOT CURRENTLY USED) */ -#define RANGE_UB_INF 0x40 /* upper bound is +/- infinity */ +#define RANGE_EMPTY 0x01 /* range is empty */ +#define RANGE_LB_INC 0x02 /* lower bound is inclusive */ +#define RANGE_UB_INC 0x04 /* upper bound is inclusive */ +#define RANGE_LB_INF 0x08 /* lower bound is -infinity */ +#define RANGE_UB_INF 0x10 /* upper bound is +infinity */ +#define RANGE_LB_NULL 0x20 /* lower bound is null (NOT USED) */ +#define RANGE_UB_NULL 0x40 /* upper bound is null (NOT USED) */ +#define RANGE_CONTAIN_EMPTY 0x80 /* marks a GiST internal-page entry whose + * subtree contains some empty ranges */ #define RANGE_HAS_LBOUND(flags) (!((flags) & (RANGE_EMPTY | \ RANGE_LB_NULL | \ @@ -49,7 +51,9 @@ typedef struct RANGE_UB_NULL | \ RANGE_UB_INF))) -#define RangeIsEmpty(r) (range_get_flags(r) & RANGE_EMPTY) +#define RangeIsEmpty(r) ((range_get_flags(r) & RANGE_EMPTY) != 0) +#define RangeIsOrContainsEmpty(r) \ + ((range_get_flags(r) & (RANGE_EMPTY | RANGE_CONTAIN_EMPTY)) != 0) /* Internal representation of either bound of a range (not what's on disk) */ @@ -152,6 +156,7 @@ extern void range_deserialize(TypeCacheEntry *typcache, RangeType *range, RangeBound *lower, RangeBound *upper, bool *empty); extern char range_get_flags(RangeType *range); +extern void range_set_contain_empty(RangeType *range); extern RangeType *make_range(TypeCacheEntry *typcache, RangeBound *lower, RangeBound *upper, bool empty); extern int range_cmp_bounds(TypeCacheEntry *typcache, RangeBound *b1, |