Header And Logo
|
#include "postgres.h"#include "access/hash.h"#include "lib/stringinfo.h"#include "libpq/pqformat.h"#include "utils/builtins.h"#include "utils/date.h"#include "utils/int8.h"#include "utils/lsyscache.h"#include "utils/rangetypes.h"#include "utils/timestamp.h"
Go to the source code of this file.
| #define RANGE_EMPTY_LITERAL "empty" |
Definition at line 44 of file rangetypes.c.
Referenced by range_deparse(), and range_parse().
| #define TYPE_IS_PACKABLE | ( | typlen, | ||
| typstorage | ||||
| ) | ((typlen) == -1 && (typstorage) != 'p') |
Definition at line 2287 of file rangetypes.c.
Referenced by datum_compute_size(), and datum_write().
| typedef struct RangeIOData RangeIOData |
| bool bounds_adjacent | ( | TypeCacheEntry * | typcache, | |
| RangeBound | boundA, | |||
| RangeBound | boundB | |||
| ) |
Definition at line 731 of file rangetypes.c.
References Assert, FmgrInfo::fn_oid, RangeBound::inclusive, RangeBound::lower, make_range(), OidIsValid, range_cmp_bound_values(), RangeIsEmpty, and TypeCacheEntry::rng_canonical_finfo.
Referenced by range_adjacent_internal(), and spg_range_quad_inner_consistent().
{
int cmp;
Assert(!boundA.lower && boundB.lower);
cmp = range_cmp_bound_values(typcache, &boundA, &boundB);
if (cmp < 0)
{
RangeType *r;
/*
* Bounds do not overlap; see if there are points in between.
*/
/* in a continuous subtype, there are assumed to be points between */
if (!OidIsValid(typcache->rng_canonical_finfo.fn_oid))
return false;
/*
* The bounds are of a discrete range type; so make a range A..B and
* see if it's empty.
*/
/* flip the inclusion flags */
boundA.inclusive = !boundA.inclusive;
boundB.inclusive = !boundB.inclusive;
/* change upper/lower labels to avoid Assert failures */
boundA.lower = true;
boundB.lower = false;
r = make_range(typcache, &boundA, &boundB, false);
return RangeIsEmpty(r);
}
else if (cmp == 0)
return boundA.inclusive != boundB.inclusive;
else
return false; /* bounds overlap */
}
| Datum daterange_canonical | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1307 of file rangetypes.c.
References date_pli(), DirectFunctionCall2, RangeBound::inclusive, RangeBound::infinite, Int32GetDatum, PG_GETARG_RANGE, PG_RETURN_RANGE, range_deserialize(), range_get_typcache(), range_serialize(), RangeTypeGetOid, and RangeBound::val.
{
RangeType *r = PG_GETARG_RANGE(0);
TypeCacheEntry *typcache;
RangeBound lower;
RangeBound upper;
bool empty;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r));
range_deserialize(typcache, r, &lower, &upper, &empty);
if (empty)
PG_RETURN_RANGE(r);
if (!lower.infinite && !lower.inclusive)
{
lower.val = DirectFunctionCall2(date_pli, lower.val, Int32GetDatum(1));
lower.inclusive = true;
}
if (!upper.infinite && upper.inclusive)
{
upper.val = DirectFunctionCall2(date_pli, upper.val, Int32GetDatum(1));
upper.inclusive = false;
}
PG_RETURN_RANGE(range_serialize(typcache, &lower, &upper, false));
}
| Datum daterange_subdiff | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1384 of file rangetypes.c.
References PG_GETARG_INT32, and PG_RETURN_FLOAT8.
{
int32 v1 = PG_GETARG_INT32(0);
int32 v2 = PG_GETARG_INT32(1);
PG_RETURN_FLOAT8((float8) v1 - (float8) v2);
}
| static Size datum_compute_size | ( | Size | sz, | |
| Datum | datum, | |||
| bool | typbyval, | |||
| char | typalign, | |||
| int16 | typlen, | |||
| char | typstorage | |||
| ) | [static] |
Definition at line 2295 of file rangetypes.c.
References att_addlength_datum, att_align_datum, DatumGetPointer, TYPE_IS_PACKABLE, VARATT_CAN_MAKE_SHORT, and VARATT_CONVERTED_SHORT_SIZE.
Referenced by range_serialize().
{
if (TYPE_IS_PACKABLE(typlen, typstorage) &&
VARATT_CAN_MAKE_SHORT(DatumGetPointer(val)))
{
/*
* we're anticipating converting to a short varlena header, so adjust
* length and don't count any alignment
*/
data_length += VARATT_CONVERTED_SHORT_SIZE(DatumGetPointer(val));
}
else
{
data_length = att_align_datum(data_length, typalign, typlen, val);
data_length = att_addlength_datum(data_length, typlen, val);
}
return data_length;
}
| static Pointer datum_write | ( | Pointer | ptr, | |
| Datum | datum, | |||
| bool | typbyval, | |||
| char | typalign, | |||
| int16 | typlen, | |||
| char | typstorage | |||
| ) | [static] |
Definition at line 2321 of file rangetypes.c.
References Assert, att_align_nominal, DatumGetCString, DatumGetPointer, elog, ERROR, SET_VARSIZE_SHORT, store_att_byval, TYPE_IS_PACKABLE, val, VARATT_CAN_MAKE_SHORT, VARATT_CONVERTED_SHORT_SIZE, VARATT_IS_EXTERNAL, VARATT_IS_SHORT, VARDATA, VARSIZE, and VARSIZE_SHORT.
Referenced by range_serialize().
{
Size data_length;
if (typbyval)
{
/* pass-by-value */
ptr = (char *) att_align_nominal(ptr, typalign);
store_att_byval(ptr, datum, typlen);
data_length = typlen;
}
else if (typlen == -1)
{
/* varlena */
Pointer val = DatumGetPointer(datum);
if (VARATT_IS_EXTERNAL(val))
{
/*
* Throw error, because we must never put a toast pointer inside a
* range object. Caller should have detoasted it.
*/
elog(ERROR, "cannot store a toast pointer inside a range");
data_length = 0; /* keep compiler quiet */
}
else if (VARATT_IS_SHORT(val))
{
/* no alignment for short varlenas */
data_length = VARSIZE_SHORT(val);
memcpy(ptr, val, data_length);
}
else if (TYPE_IS_PACKABLE(typlen, typstorage) &&
VARATT_CAN_MAKE_SHORT(val))
{
/* convert to short varlena -- no alignment */
data_length = VARATT_CONVERTED_SHORT_SIZE(val);
SET_VARSIZE_SHORT(ptr, data_length);
memcpy(ptr + 1, VARDATA(val), data_length - 1);
}
else
{
/* full 4-byte header varlena */
ptr = (char *) att_align_nominal(ptr, typalign);
data_length = VARSIZE(val);
memcpy(ptr, val, data_length);
}
}
else if (typlen == -2)
{
/* cstring ... never needs alignment */
Assert(typalign == 'c');
data_length = strlen(DatumGetCString(datum)) + 1;
memcpy(ptr, DatumGetPointer(datum), data_length);
}
else
{
/* fixed-length pass-by-reference */
ptr = (char *) att_align_nominal(ptr, typalign);
Assert(typlen > 0);
data_length = typlen;
memcpy(ptr, DatumGetPointer(datum), data_length);
}
ptr += data_length;
return ptr;
}
| Datum elem_contained_by_range | ( | PG_FUNCTION_ARGS | ) |
Definition at line 531 of file rangetypes.c.
References PG_GETARG_DATUM, PG_GETARG_RANGE, PG_RETURN_BOOL, range_contains_elem_internal(), range_get_typcache(), RangeTypeGetOid, and val.
{
Datum val = PG_GETARG_DATUM(0);
RangeType *r = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r));
PG_RETURN_BOOL(range_contains_elem_internal(typcache, r, val));
}
| static RangeIOData * get_range_io_data | ( | FunctionCallInfo | fcinfo, | |
| Oid | rngtypid, | |||
| IOFuncSelector | func | |||
| ) | [static] |
Definition at line 292 of file rangetypes.c.
References elog, ereport, errcode(), errmsg(), ERROR, FunctionCallInfoData::flinfo, fmgr_info_cxt(), FmgrInfo::fn_extra, FmgrInfo::fn_mcxt, format_type_be(), get_type_io_data(), IOFunc_receive, lookup_type_cache(), MemoryContextAlloc(), NULL, OidIsValid, RangeIOData::proc, TypeCacheEntry::rngelemtype, RangeIOData::typcache, TypeCacheEntry::type_id, TYPECACHE_RANGE_INFO, RangeIOData::typiofunc, and RangeIOData::typioparam.
Referenced by range_in(), range_out(), range_recv(), and range_send().
{
RangeIOData *cache = (RangeIOData *) fcinfo->flinfo->fn_extra;
if (cache == NULL || cache->typcache->type_id != rngtypid)
{
int16 typlen;
bool typbyval;
char typalign;
char typdelim;
cache = (RangeIOData *) MemoryContextAlloc(fcinfo->flinfo->fn_mcxt,
sizeof(RangeIOData));
cache->typcache = lookup_type_cache(rngtypid, TYPECACHE_RANGE_INFO);
if (cache->typcache->rngelemtype == NULL)
elog(ERROR, "type %u is not a range type", rngtypid);
/* get_type_io_data does more than we need, but is convenient */
get_type_io_data(cache->typcache->rngelemtype->type_id,
func,
&typlen,
&typbyval,
&typalign,
&typdelim,
&cache->typioparam,
&cache->typiofunc);
if (!OidIsValid(cache->typiofunc))
{
/* this could only happen for receive or send */
if (func == IOFunc_receive)
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_FUNCTION),
errmsg("no binary input function available for type %s",
format_type_be(cache->typcache->rngelemtype->type_id))));
else
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_FUNCTION),
errmsg("no binary output function available for type %s",
format_type_be(cache->typcache->rngelemtype->type_id))));
}
fmgr_info_cxt(cache->typiofunc, &cache->proc,
fcinfo->flinfo->fn_mcxt);
fcinfo->flinfo->fn_extra = (void *) cache;
}
return cache;
}
| Datum hash_range | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1177 of file rangetypes.c.
References DatumGetUInt32, ereport, errcode(), errmsg(), ERROR, FmgrInfo::fn_oid, format_type_be(), FunctionCall1Coll(), TypeCacheEntry::hash_proc_finfo, hash_uint32(), lookup_type_cache(), OidIsValid, PG_GETARG_RANGE, PG_RETURN_INT32, range_deserialize(), range_get_flags(), range_get_typcache(), RANGE_HAS_LBOUND, RANGE_HAS_UBOUND, RangeTypeGetOid, TypeCacheEntry::rng_collation, TypeCacheEntry::rngelemtype, TypeCacheEntry::type_id, TYPECACHE_HASH_PROC_FINFO, and RangeBound::val.
{
RangeType *r = PG_GETARG_RANGE(0);
uint32 result;
TypeCacheEntry *typcache;
TypeCacheEntry *scache;
RangeBound lower;
RangeBound upper;
bool empty;
char flags;
uint32 lower_hash;
uint32 upper_hash;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r));
/* deserialize */
range_deserialize(typcache, r, &lower, &upper, &empty);
flags = range_get_flags(r);
/*
* Look up the element type's hash function, if not done already.
*/
scache = typcache->rngelemtype;
if (!OidIsValid(scache->hash_proc_finfo.fn_oid))
{
scache = lookup_type_cache(scache->type_id, TYPECACHE_HASH_PROC_FINFO);
if (!OidIsValid(scache->hash_proc_finfo.fn_oid))
ereport(ERROR,
(errcode(ERRCODE_UNDEFINED_FUNCTION),
errmsg("could not identify a hash function for type %s",
format_type_be(scache->type_id))));
}
/*
* Apply the hash function to each bound.
*/
if (RANGE_HAS_LBOUND(flags))
lower_hash = DatumGetUInt32(FunctionCall1Coll(&scache->hash_proc_finfo,
typcache->rng_collation,
lower.val));
else
lower_hash = 0;
if (RANGE_HAS_UBOUND(flags))
upper_hash = DatumGetUInt32(FunctionCall1Coll(&scache->hash_proc_finfo,
typcache->rng_collation,
upper.val));
else
upper_hash = 0;
/* Merge hashes of flags and bounds */
result = hash_uint32((uint32) flags);
result ^= lower_hash;
result = (result << 1) | (result >> 31);
result ^= upper_hash;
PG_RETURN_INT32(result);
}
| Datum int4range_canonical | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1245 of file rangetypes.c.
References DirectFunctionCall2, RangeBound::inclusive, RangeBound::infinite, Int32GetDatum, int4pl(), PG_GETARG_RANGE, PG_RETURN_RANGE, range_deserialize(), range_get_typcache(), range_serialize(), RangeTypeGetOid, and RangeBound::val.
{
RangeType *r = PG_GETARG_RANGE(0);
TypeCacheEntry *typcache;
RangeBound lower;
RangeBound upper;
bool empty;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r));
range_deserialize(typcache, r, &lower, &upper, &empty);
if (empty)
PG_RETURN_RANGE(r);
if (!lower.infinite && !lower.inclusive)
{
lower.val = DirectFunctionCall2(int4pl, lower.val, Int32GetDatum(1));
lower.inclusive = true;
}
if (!upper.infinite && upper.inclusive)
{
upper.val = DirectFunctionCall2(int4pl, upper.val, Int32GetDatum(1));
upper.inclusive = false;
}
PG_RETURN_RANGE(range_serialize(typcache, &lower, &upper, false));
}
| Datum int4range_subdiff | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1350 of file rangetypes.c.
References PG_GETARG_INT32, and PG_RETURN_FLOAT8.
{
int32 v1 = PG_GETARG_INT32(0);
int32 v2 = PG_GETARG_INT32(1);
PG_RETURN_FLOAT8((float8) v1 - (float8) v2);
}
| Datum int8range_canonical | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1276 of file rangetypes.c.
References DirectFunctionCall2, RangeBound::inclusive, RangeBound::infinite, Int64GetDatum(), int8pl(), PG_GETARG_RANGE, PG_RETURN_RANGE, range_deserialize(), range_get_typcache(), range_serialize(), RangeTypeGetOid, and RangeBound::val.
{
RangeType *r = PG_GETARG_RANGE(0);
TypeCacheEntry *typcache;
RangeBound lower;
RangeBound upper;
bool empty;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r));
range_deserialize(typcache, r, &lower, &upper, &empty);
if (empty)
PG_RETURN_RANGE(r);
if (!lower.infinite && !lower.inclusive)
{
lower.val = DirectFunctionCall2(int8pl, lower.val, Int64GetDatum(1));
lower.inclusive = true;
}
if (!upper.infinite && upper.inclusive)
{
upper.val = DirectFunctionCall2(int8pl, upper.val, Int64GetDatum(1));
upper.inclusive = false;
}
PG_RETURN_RANGE(range_serialize(typcache, &lower, &upper, false));
}
| Datum int8range_subdiff | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1359 of file rangetypes.c.
References PG_GETARG_INT64, and PG_RETURN_FLOAT8.
{
int64 v1 = PG_GETARG_INT64(0);
int64 v2 = PG_GETARG_INT64(1);
PG_RETURN_FLOAT8((float8) v1 - (float8) v2);
}
| RangeType* make_empty_range | ( | TypeCacheEntry * | typcache | ) |
Definition at line 1840 of file rangetypes.c.
References RangeBound::inclusive, RangeBound::infinite, RangeBound::lower, make_range(), and RangeBound::val.
Referenced by range_intersect(), and range_minus().
{
RangeBound lower;
RangeBound upper;
lower.val = (Datum) 0;
lower.infinite = false;
lower.inclusive = false;
lower.lower = true;
upper.val = (Datum) 0;
upper.infinite = false;
upper.inclusive = false;
upper.lower = false;
return make_range(typcache, &lower, &upper, true);
}
| RangeType* make_range | ( | TypeCacheEntry * | typcache, | |
| RangeBound * | lower, | |||
| RangeBound * | upper, | |||
| bool | empty | |||
| ) |
Definition at line 1691 of file rangetypes.c.
References DatumGetRangeType, FmgrInfo::fn_oid, FunctionCall1, OidIsValid, range_serialize(), RangeIsEmpty, RangeTypeGetDatum, and TypeCacheEntry::rng_canonical_finfo.
Referenced by bounds_adjacent(), make_empty_range(), range_constructor2(), range_constructor3(), range_in(), range_intersect(), range_minus(), range_recv(), range_super_union(), and range_union().
{
RangeType *range;
range = range_serialize(typcache, lower, upper, empty);
/* no need to call canonical on empty ranges ... */
if (OidIsValid(typcache->rng_canonical_finfo.fn_oid) &&
!RangeIsEmpty(range))
range = DatumGetRangeType(FunctionCall1(&typcache->rng_canonical_finfo,
RangeTypeGetDatum(range)));
return range;
}
| Datum numrange_subdiff | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1368 of file rangetypes.c.
References DatumGetFloat8, DirectFunctionCall1, DirectFunctionCall2, numeric_float8(), numeric_sub(), PG_GETARG_DATUM, and PG_RETURN_FLOAT8.
{
Datum v1 = PG_GETARG_DATUM(0);
Datum v2 = PG_GETARG_DATUM(1);
Datum numresult;
float8 floatresult;
numresult = DirectFunctionCall2(numeric_sub, v1, v2);
floatresult = DatumGetFloat8(DirectFunctionCall1(numeric_float8,
numresult));
PG_RETURN_FLOAT8(floatresult);
}
| Datum range_adjacent | ( | PG_FUNCTION_ARGS | ) |
Definition at line 802 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_adjacent_internal(), range_get_typcache(), and RangeTypeGetOid.
Referenced by range_union().
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_adjacent_internal(typcache, r1, r2));
}
| bool range_adjacent_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 772 of file rangetypes.c.
References bounds_adjacent(), elog, ERROR, range_deserialize(), and RangeTypeGetOid.
Referenced by range_adjacent(), range_gist_consistent_int(), range_gist_consistent_leaf(), and spg_range_quad_leaf_consistent().
{
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* An empty range is not adjacent to any other range */
if (empty1 || empty2)
return false;
/*
* Given two ranges A..B and C..D, the ranges are adjacent if and only if
* B is adjacent to C, or D is adjacent to A.
*/
return (bounds_adjacent(typcache, upper1, lower2) ||
bounds_adjacent(typcache, upper2, lower1));
}
| Datum range_after | ( | PG_FUNCTION_ARGS | ) |
Definition at line 701 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_after_internal(), range_get_typcache(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_after_internal(typcache, r1, r2));
}
| bool range_after_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 676 of file rangetypes.c.
References elog, ERROR, range_cmp_bounds(), range_deserialize(), and RangeTypeGetOid.
Referenced by range_after(), range_gist_consistent_int(), range_gist_consistent_leaf(), and spg_range_quad_leaf_consistent().
{
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* An empty range is neither before nor after any other range */
if (empty1 || empty2)
return false;
return (range_cmp_bounds(typcache, &lower1, &upper2) > 0);
}
| Datum range_before | ( | PG_FUNCTION_ARGS | ) |
Definition at line 663 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_before_internal(), range_get_typcache(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_before_internal(typcache, r1, r2));
}
| bool range_before_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 638 of file rangetypes.c.
References elog, ERROR, range_cmp_bounds(), range_deserialize(), and RangeTypeGetOid.
Referenced by range_before(), range_gist_consistent_int(), range_gist_consistent_leaf(), and spg_range_quad_leaf_consistent().
{
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* An empty range is neither before nor after any other range */
if (empty1 || empty2)
return false;
return (range_cmp_bounds(typcache, &upper1, &lower2) < 0);
}
| static char * range_bound_escape | ( | const char * | value | ) | [static] |
Definition at line 2150 of file rangetypes.c.
References appendStringInfoChar(), buf, StringInfoData::data, and initStringInfo().
Referenced by range_deparse().
{
bool nq;
const char *ptr;
StringInfoData buf;
initStringInfo(&buf);
/* Detect whether we need double quotes for this value */
nq = (value[0] == '\0'); /* force quotes for empty string */
for (ptr = value; *ptr; ptr++)
{
char ch = *ptr;
if (ch == '"' || ch == '\\' ||
ch == '(' || ch == ')' ||
ch == '[' || ch == ']' ||
ch == ',' ||
isspace((unsigned char) ch))
{
nq = true;
break;
}
}
/* And emit the string */
if (nq)
appendStringInfoChar(&buf, '"');
for (ptr = value; *ptr; ptr++)
{
char ch = *ptr;
if (ch == '"' || ch == '\\')
appendStringInfoChar(&buf, ch);
appendStringInfoChar(&buf, ch);
}
if (nq)
appendStringInfoChar(&buf, '"');
return buf.data;
}
| Datum range_cmp | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1104 of file rangetypes.c.
References elog, ERROR, PG_GETARG_RANGE, PG_RETURN_INT32, range_cmp_bounds(), range_deserialize(), range_get_typcache(), and RangeTypeGetOid.
Referenced by range_ge(), range_gt(), range_le(), and range_lt().
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
int cmp;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* For b-tree use, empty ranges sort before all else */
if (empty1 && empty2)
PG_RETURN_INT32(0);
else if (empty1)
PG_RETURN_INT32(-1);
else if (empty2)
PG_RETURN_INT32(1);
if ((cmp = range_cmp_bounds(typcache, &lower1, &lower2)) != 0)
PG_RETURN_INT32(cmp);
PG_RETURN_INT32(range_cmp_bounds(typcache, &upper1, &upper2));
}
| int range_cmp_bound_values | ( | TypeCacheEntry * | typcache, | |
| RangeBound * | b1, | |||
| RangeBound * | b2 | |||
| ) |
Definition at line 1805 of file rangetypes.c.
References DatumGetInt32, FunctionCall2Coll(), RangeBound::infinite, RangeBound::lower, TypeCacheEntry::rng_cmp_proc_finfo, TypeCacheEntry::rng_collation, and RangeBound::val.
Referenced by bounds_adjacent(), and range_serialize().
{
/*
* First, handle cases involving infinity, which don't require invoking
* the comparison proc.
*/
if (b1->infinite && b2->infinite)
{
/*
* Both are infinity, so they are equal unless one is lower and the
* other not.
*/
if (b1->lower == b2->lower)
return 0;
else
return b1->lower ? -1 : 1;
}
else if (b1->infinite)
return b1->lower ? -1 : 1;
else if (b2->infinite)
return b2->lower ? 1 : -1;
/*
* Both boundaries are finite, so compare the held values.
*/
return DatumGetInt32(FunctionCall2Coll(&typcache->rng_cmp_proc_finfo,
typcache->rng_collation,
b1->val, b2->val));
}
| int range_cmp_bounds | ( | TypeCacheEntry * | typcache, | |
| RangeBound * | b1, | |||
| RangeBound * | b2 | |||
| ) |
Definition at line 1731 of file rangetypes.c.
References DatumGetInt32, FunctionCall2Coll(), RangeBound::inclusive, RangeBound::infinite, RangeBound::lower, TypeCacheEntry::rng_cmp_proc_finfo, TypeCacheEntry::rng_collation, and RangeBound::val.
Referenced by bound_cmp(), calc_hist_selectivity_contained(), getQuadrant(), interval_cmp_lower(), interval_cmp_upper(), range_after_internal(), range_before_internal(), range_bound_qsort_cmp(), range_cmp(), range_contains_internal(), range_eq_internal(), range_gist_double_sorting_split(), range_gist_penalty(), range_intersect(), range_minus(), range_overlaps_internal(), range_overleft_internal(), range_overright_internal(), range_super_union(), range_union(), rbound_bsearch(), single_bound_cmp(), and spg_range_quad_inner_consistent().
{
int32 result;
/*
* First, handle cases involving infinity, which don't require invoking
* the comparison proc.
*/
if (b1->infinite && b2->infinite)
{
/*
* Both are infinity, so they are equal unless one is lower and the
* other not.
*/
if (b1->lower == b2->lower)
return 0;
else
return b1->lower ? -1 : 1;
}
else if (b1->infinite)
return b1->lower ? -1 : 1;
else if (b2->infinite)
return b2->lower ? 1 : -1;
/*
* Both boundaries are finite, so compare the held values.
*/
result = DatumGetInt32(FunctionCall2Coll(&typcache->rng_cmp_proc_finfo,
typcache->rng_collation,
b1->val, b2->val));
/*
* If the comparison is anything other than equal, we're done. If they
* compare equal though, we still have to consider whether the boundaries
* are inclusive or exclusive.
*/
if (result == 0)
{
if (!b1->inclusive && !b2->inclusive)
{
/* both are exclusive */
if (b1->lower == b2->lower)
return 0;
else
return b1->lower ? 1 : -1;
}
else if (!b1->inclusive)
return b1->lower ? 1 : -1;
else if (!b2->inclusive)
return b2->lower ? -1 : 1;
else
{
/*
* Both are inclusive and the values held are equal, so they are
* equal regardless of whether they are upper or lower boundaries,
* or a mix.
*/
return 0;
}
}
return result;
}
| Datum range_constructor2 | ( | PG_FUNCTION_ARGS | ) |
Definition at line 351 of file rangetypes.c.
References get_fn_expr_rettype(), RangeBound::inclusive, RangeBound::infinite, RangeBound::lower, make_range(), PG_ARGISNULL, PG_GETARG_DATUM, PG_RETURN_RANGE, range_get_typcache(), and RangeBound::val.
{
Datum arg1 = PG_GETARG_DATUM(0);
Datum arg2 = PG_GETARG_DATUM(1);
Oid rngtypid = get_fn_expr_rettype(fcinfo->flinfo);
RangeType *range;
TypeCacheEntry *typcache;
RangeBound lower;
RangeBound upper;
typcache = range_get_typcache(fcinfo, rngtypid);
lower.val = PG_ARGISNULL(0) ? (Datum) 0 : arg1;
lower.infinite = PG_ARGISNULL(0);
lower.inclusive = true;
lower.lower = true;
upper.val = PG_ARGISNULL(1) ? (Datum) 0 : arg2;
upper.infinite = PG_ARGISNULL(1);
upper.inclusive = false;
upper.lower = false;
range = make_range(typcache, &lower, &upper, false);
PG_RETURN_RANGE(range);
}
| Datum range_constructor3 | ( | PG_FUNCTION_ARGS | ) |
Definition at line 380 of file rangetypes.c.
References ereport, errcode(), errmsg(), ERROR, get_fn_expr_rettype(), RangeBound::inclusive, RangeBound::infinite, RangeBound::lower, make_range(), PG_ARGISNULL, PG_GETARG_DATUM, PG_GETARG_TEXT_P, PG_RETURN_RANGE, range_get_typcache(), range_parse_flags(), text_to_cstring(), and RangeBound::val.
{
Datum arg1 = PG_GETARG_DATUM(0);
Datum arg2 = PG_GETARG_DATUM(1);
Oid rngtypid = get_fn_expr_rettype(fcinfo->flinfo);
RangeType *range;
TypeCacheEntry *typcache;
RangeBound lower;
RangeBound upper;
char flags;
typcache = range_get_typcache(fcinfo, rngtypid);
if (PG_ARGISNULL(2))
ereport(ERROR,
(errcode(ERRCODE_DATA_EXCEPTION),
errmsg("range constructor flags argument must not be null")));
flags = range_parse_flags(text_to_cstring(PG_GETARG_TEXT_P(2)));
lower.val = PG_ARGISNULL(0) ? (Datum) 0 : arg1;
lower.infinite = PG_ARGISNULL(0);
lower.inclusive = (flags & RANGE_LB_INC) != 0;
lower.lower = true;
upper.val = PG_ARGISNULL(1) ? (Datum) 0 : arg2;
upper.infinite = PG_ARGISNULL(1);
upper.inclusive = (flags & RANGE_UB_INC) != 0;
upper.lower = false;
range = make_range(typcache, &lower, &upper, false);
PG_RETURN_RANGE(range);
}
| Datum range_contained_by | ( | PG_FUNCTION_ARGS | ) |
Definition at line 625 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_contained_by_internal(), range_get_typcache(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_contained_by_internal(typcache, r1, r2));
}
| bool range_contained_by_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 2231 of file rangetypes.c.
References range_contains_internal().
Referenced by range_contained_by(), range_gist_consistent_leaf(), and spg_range_quad_leaf_consistent().
{
return range_contains_internal(typcache, r2, r1);
}
| Datum range_contains | ( | PG_FUNCTION_ARGS | ) |
Definition at line 612 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_contains_internal(), range_get_typcache(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_contains_internal(typcache, r1, r2));
}
| Datum range_contains_elem | ( | PG_FUNCTION_ARGS | ) |
Definition at line 518 of file rangetypes.c.
References PG_GETARG_DATUM, PG_GETARG_RANGE, PG_RETURN_BOOL, range_contains_elem_internal(), range_get_typcache(), RangeTypeGetOid, and val.
{
RangeType *r = PG_GETARG_RANGE(0);
Datum val = PG_GETARG_DATUM(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r));
PG_RETURN_BOOL(range_contains_elem_internal(typcache, r, val));
}
| bool range_contains_elem_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r, | |||
| Datum | val | |||
| ) |
Definition at line 2240 of file rangetypes.c.
References DatumGetInt32, FunctionCall2Coll(), RangeBound::inclusive, RangeBound::infinite, range_deserialize(), TypeCacheEntry::rng_cmp_proc_finfo, TypeCacheEntry::rng_collation, and RangeBound::val.
Referenced by elem_contained_by_range(), range_contains_elem(), range_gist_consistent_int(), range_gist_consistent_leaf(), and spg_range_quad_leaf_consistent().
{
RangeBound lower;
RangeBound upper;
bool empty;
int32 cmp;
range_deserialize(typcache, r, &lower, &upper, &empty);
if (empty)
return false;
if (!lower.infinite)
{
cmp = DatumGetInt32(FunctionCall2Coll(&typcache->rng_cmp_proc_finfo,
typcache->rng_collation,
lower.val, val));
if (cmp > 0)
return false;
if (cmp == 0 && !lower.inclusive)
return false;
}
if (!upper.infinite)
{
cmp = DatumGetInt32(FunctionCall2Coll(&typcache->rng_cmp_proc_finfo,
typcache->rng_collation,
upper.val, val));
if (cmp < 0)
return false;
if (cmp == 0 && !upper.inclusive)
return false;
}
return true;
}
| bool range_contains_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 2199 of file rangetypes.c.
References elog, ERROR, range_cmp_bounds(), range_deserialize(), and RangeTypeGetOid.
Referenced by range_contained_by_internal(), range_contains(), range_gist_consistent_int(), range_gist_consistent_leaf(), and spg_range_quad_leaf_consistent().
{
RangeBound lower1;
RangeBound upper1;
bool empty1;
RangeBound lower2;
RangeBound upper2;
bool empty2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* If either range is empty, the answer is easy */
if (empty2)
return true;
else if (empty1)
return false;
/* Else we must have lower1 <= lower2 and upper1 >= upper2 */
if (range_cmp_bounds(typcache, &lower1, &lower2) > 0)
return false;
if (range_cmp_bounds(typcache, &upper1, &upper2) < 0)
return false;
return true;
}
| static char * range_deparse | ( | char | flags, | |
| const char * | lbound_str, | |||
| const char * | ubound_str | |||
| ) | [static] |
Definition at line 2120 of file rangetypes.c.
References appendStringInfoChar(), appendStringInfoString(), buf, StringInfoData::data, initStringInfo(), pstrdup(), range_bound_escape(), RANGE_EMPTY, RANGE_EMPTY_LITERAL, RANGE_HAS_LBOUND, RANGE_HAS_UBOUND, RANGE_LB_INC, and RANGE_UB_INC.
Referenced by range_out().
{
StringInfoData buf;
if (flags & RANGE_EMPTY)
return pstrdup(RANGE_EMPTY_LITERAL);
initStringInfo(&buf);
appendStringInfoChar(&buf, (flags & RANGE_LB_INC) ? '[' : '(');
if (RANGE_HAS_LBOUND(flags))
appendStringInfoString(&buf, range_bound_escape(lbound_str));
appendStringInfoChar(&buf, ',');
if (RANGE_HAS_UBOUND(flags))
appendStringInfoString(&buf, range_bound_escape(ubound_str));
appendStringInfoChar(&buf, (flags & RANGE_UB_INC) ? ']' : ')');
return buf.data;
}
| void range_deserialize | ( | TypeCacheEntry * | typcache, | |
| RangeType * | range, | |||
| RangeBound * | lower, | |||
| RangeBound * | upper, | |||
| bool * | empty | |||
| ) |
Definition at line 1595 of file rangetypes.c.
References Assert, att_addlength_pointer, att_align_pointer, fetch_att, RangeBound::inclusive, RangeBound::infinite, RangeBound::lower, RANGE_HAS_LBOUND, RANGE_HAS_UBOUND, RangeTypeGetOid, TypeCacheEntry::rngelemtype, TypeCacheEntry::typalign, TypeCacheEntry::typbyval, TypeCacheEntry::type_id, TypeCacheEntry::typlen, RangeBound::val, and VARSIZE.
Referenced by calc_hist_selectivity(), compute_range_stats(), daterange_canonical(), getQuadrant(), hash_range(), int4range_canonical(), int8range_canonical(), range_adjacent_internal(), range_after_internal(), range_before_internal(), range_cmp(), range_contains_elem_internal(), range_contains_internal(), range_eq_internal(), range_gist_double_sorting_split(), range_gist_penalty(), range_gist_single_sorting_split(), range_intersect(), range_lower(), range_minus(), range_out(), range_overlaps_internal(), range_overleft_internal(), range_overright_internal(), range_send(), range_super_union(), range_union(), range_upper(), spg_range_quad_inner_consistent(), and spg_range_quad_picksplit().
{
char flags;
int16 typlen;
bool typbyval;
char typalign;
Pointer ptr;
Datum lbound;
Datum ubound;
/* assert caller passed the right typcache entry */
Assert(RangeTypeGetOid(range) == typcache->type_id);
/* fetch the flag byte from datum's last byte */
flags = *((char *) range + VARSIZE(range) - 1);
/* fetch information about range's element type */
typlen = typcache->rngelemtype->typlen;
typbyval = typcache->rngelemtype->typbyval;
typalign = typcache->rngelemtype->typalign;
/* initialize data pointer just after the range OID */
ptr = (Pointer) (range + 1);
/* fetch lower bound, if any */
if (RANGE_HAS_LBOUND(flags))
{
/* att_align_pointer cannot be necessary here */
lbound = fetch_att(ptr, typbyval, typlen);
ptr = (Pointer) att_addlength_pointer(ptr, typlen, ptr);
}
else
lbound = (Datum) 0;
/* fetch upper bound, if any */
if (RANGE_HAS_UBOUND(flags))
{
ptr = (Pointer) att_align_pointer(ptr, typalign, typlen, ptr);
ubound = fetch_att(ptr, typbyval, typlen);
/* no need for att_addlength_pointer */
}
else
ubound = (Datum) 0;
/* emit results */
*empty = (flags & RANGE_EMPTY) != 0;
lower->val = lbound;
lower->infinite = (flags & RANGE_LB_INF) != 0;
lower->inclusive = (flags & RANGE_LB_INC) != 0;
lower->lower = true;
upper->val = ubound;
upper->infinite = (flags & RANGE_UB_INF) != 0;
upper->inclusive = (flags & RANGE_UB_INC) != 0;
upper->lower = false;
}
| Datum range_empty | ( | PG_FUNCTION_ARGS | ) |
Definition at line 465 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, RANGE_EMPTY, and range_get_flags().
{
RangeType *r1 = PG_GETARG_RANGE(0);
char flags = range_get_flags(r1);
PG_RETURN_BOOL(flags & RANGE_EMPTY);
}
| Datum range_eq | ( | PG_FUNCTION_ARGS | ) |
Definition at line 579 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_eq_internal(), range_get_typcache(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_eq_internal(typcache, r1, r2));
}
| bool range_eq_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 547 of file rangetypes.c.
References elog, ERROR, range_cmp_bounds(), range_deserialize(), and RangeTypeGetOid.
Referenced by range_eq(), range_gist_consistent_leaf(), range_gist_same(), range_ne_internal(), and spg_range_quad_leaf_consistent().
{
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
if (empty1 && empty2)
return true;
if (empty1 != empty2)
return false;
if (range_cmp_bounds(typcache, &lower1, &lower2) != 0)
return false;
if (range_cmp_bounds(typcache, &upper1, &upper2) != 0)
return false;
return true;
}
| Datum range_ge | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1158 of file rangetypes.c.
References cmp(), PG_RETURN_BOOL, and range_cmp().
{
int cmp = range_cmp(fcinfo);
PG_RETURN_BOOL(cmp >= 0);
}
| char range_get_flags | ( | RangeType * | range | ) |
Definition at line 1662 of file rangetypes.c.
References VARSIZE.
Referenced by get_gist_range_class(), hash_range(), range_empty(), range_gist_same(), range_lower_inc(), range_lower_inf(), range_out(), range_send(), range_super_union(), range_upper_inc(), and range_upper_inf().
{
/* fetch the flag byte from datum's last byte */
return *((char *) range + VARSIZE(range) - 1);
}
| TypeCacheEntry* range_get_typcache | ( | FunctionCallInfo | fcinfo, | |
| Oid | rngtypid | |||
| ) |
Definition at line 1442 of file rangetypes.c.
References elog, ERROR, FunctionCallInfoData::flinfo, FmgrInfo::fn_extra, lookup_type_cache(), NULL, TypeCacheEntry::rngelemtype, TypeCacheEntry::type_id, and TYPECACHE_RANGE_INFO.
Referenced by daterange_canonical(), elem_contained_by_range(), hash_range(), int4range_canonical(), int8range_canonical(), range_adjacent(), range_after(), range_before(), range_cmp(), range_constructor2(), range_constructor3(), range_contained_by(), range_contains(), range_contains_elem(), range_eq(), range_gist_consistent(), range_gist_penalty(), range_gist_picksplit(), range_gist_same(), range_gist_union(), range_intersect(), range_lower(), range_minus(), range_ne(), range_overlaps(), range_overleft(), range_overright(), range_typanalyze(), range_union(), range_upper(), rangesel(), spg_range_quad_choose(), spg_range_quad_inner_consistent(), spg_range_quad_leaf_consistent(), and spg_range_quad_picksplit().
{
TypeCacheEntry *typcache = (TypeCacheEntry *) fcinfo->flinfo->fn_extra;
if (typcache == NULL ||
typcache->type_id != rngtypid)
{
typcache = lookup_type_cache(rngtypid, TYPECACHE_RANGE_INFO);
if (typcache->rngelemtype == NULL)
elog(ERROR, "type %u is not a range type", rngtypid);
fcinfo->flinfo->fn_extra = (void *) typcache;
}
return typcache;
}
| Datum range_gt | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1166 of file rangetypes.c.
References cmp(), PG_RETURN_BOOL, and range_cmp().
{
int cmp = range_cmp(fcinfo);
PG_RETURN_BOOL(cmp > 0);
}
| Datum range_in | ( | PG_FUNCTION_ARGS | ) |
Definition at line 79 of file rangetypes.c.
References get_range_io_data(), RangeBound::inclusive, RangeBound::infinite, InputFunctionCall(), IOFunc_input, RangeBound::lower, make_range(), PG_GETARG_CSTRING, PG_GETARG_INT32, PG_GETARG_OID, PG_RETURN_RANGE, RangeIOData::proc, RANGE_EMPTY, RANGE_HAS_LBOUND, RANGE_HAS_UBOUND, range_parse(), RangeIOData::typcache, RangeIOData::typioparam, and RangeBound::val.
{
char *input_str = PG_GETARG_CSTRING(0);
Oid rngtypoid = PG_GETARG_OID(1);
Oid typmod = PG_GETARG_INT32(2);
RangeType *range;
RangeIOData *cache;
char flags;
char *lbound_str;
char *ubound_str;
RangeBound lower;
RangeBound upper;
cache = get_range_io_data(fcinfo, rngtypoid, IOFunc_input);
/* parse */
range_parse(input_str, &flags, &lbound_str, &ubound_str);
/* call element type's input function */
if (RANGE_HAS_LBOUND(flags))
lower.val = InputFunctionCall(&cache->proc, lbound_str,
cache->typioparam, typmod);
if (RANGE_HAS_UBOUND(flags))
upper.val = InputFunctionCall(&cache->proc, ubound_str,
cache->typioparam, typmod);
lower.infinite = (flags & RANGE_LB_INF) != 0;
lower.inclusive = (flags & RANGE_LB_INC) != 0;
lower.lower = true;
upper.infinite = (flags & RANGE_UB_INF) != 0;
upper.inclusive = (flags & RANGE_UB_INC) != 0;
upper.lower = false;
/* serialize and canonicalize */
range = make_range(cache->typcache, &lower, &upper, flags & RANGE_EMPTY);
PG_RETURN_RANGE(range);
}
| Datum range_intersect | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1061 of file rangetypes.c.
References DatumGetBool, elog, ERROR, make_empty_range(), make_range(), PG_GETARG_RANGE, PG_RETURN_RANGE, range_cmp_bounds(), range_deserialize(), range_get_typcache(), range_overlaps(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
RangeBound *result_lower;
RangeBound *result_upper;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
if (empty1 || empty2 || !DatumGetBool(range_overlaps(fcinfo)))
PG_RETURN_RANGE(make_empty_range(typcache));
if (range_cmp_bounds(typcache, &lower1, &lower2) >= 0)
result_lower = &lower1;
else
result_lower = &lower2;
if (range_cmp_bounds(typcache, &upper1, &upper2) <= 0)
result_upper = &upper1;
else
result_upper = &upper2;
PG_RETURN_RANGE(make_range(typcache, result_lower, result_upper, false));
}
| Datum range_le | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1150 of file rangetypes.c.
References cmp(), PG_RETURN_BOOL, and range_cmp().
{
int cmp = range_cmp(fcinfo);
PG_RETURN_BOOL(cmp <= 0);
}
| Datum range_lower | ( | PG_FUNCTION_ARGS | ) |
Definition at line 420 of file rangetypes.c.
References RangeBound::infinite, PG_GETARG_RANGE, PG_RETURN_DATUM, PG_RETURN_NULL, range_deserialize(), range_get_typcache(), RangeTypeGetOid, and RangeBound::val.
{
RangeType *r1 = PG_GETARG_RANGE(0);
TypeCacheEntry *typcache;
RangeBound lower;
RangeBound upper;
bool empty;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
range_deserialize(typcache, r1, &lower, &upper, &empty);
/* Return NULL if there's no finite lower bound */
if (empty || lower.infinite)
PG_RETURN_NULL();
PG_RETURN_DATUM(lower.val);
}
| Datum range_lower_inc | ( | PG_FUNCTION_ARGS | ) |
Definition at line 475 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_get_flags(), and RANGE_LB_INC.
{
RangeType *r1 = PG_GETARG_RANGE(0);
char flags = range_get_flags(r1);
PG_RETURN_BOOL(flags & RANGE_LB_INC);
}
| Datum range_lower_inf | ( | PG_FUNCTION_ARGS | ) |
Definition at line 495 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_get_flags(), and RANGE_LB_INF.
{
RangeType *r1 = PG_GETARG_RANGE(0);
char flags = range_get_flags(r1);
PG_RETURN_BOOL(flags & RANGE_LB_INF);
}
| Datum range_lt | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1142 of file rangetypes.c.
References cmp(), PG_RETURN_BOOL, and range_cmp().
{
int cmp = range_cmp(fcinfo);
PG_RETURN_BOOL(cmp < 0);
}
| Datum range_minus | ( | PG_FUNCTION_ARGS | ) |
Definition at line 946 of file rangetypes.c.
References elog, ereport, errcode(), errmsg(), ERROR, RangeBound::inclusive, RangeBound::lower, make_empty_range(), make_range(), PG_GETARG_RANGE, PG_RETURN_NULL, PG_RETURN_RANGE, range_cmp_bounds(), range_deserialize(), range_get_typcache(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
int cmp_l1l2,
cmp_l1u2,
cmp_u1l2,
cmp_u1u2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* if either is empty, r1 is the correct answer */
if (empty1 || empty2)
PG_RETURN_RANGE(r1);
cmp_l1l2 = range_cmp_bounds(typcache, &lower1, &lower2);
cmp_l1u2 = range_cmp_bounds(typcache, &lower1, &upper2);
cmp_u1l2 = range_cmp_bounds(typcache, &upper1, &lower2);
cmp_u1u2 = range_cmp_bounds(typcache, &upper1, &upper2);
if (cmp_l1l2 < 0 && cmp_u1u2 > 0)
ereport(ERROR,
(errcode(ERRCODE_DATA_EXCEPTION),
errmsg("result of range difference would not be contiguous")));
if (cmp_l1u2 > 0 || cmp_u1l2 < 0)
PG_RETURN_RANGE(r1);
if (cmp_l1l2 >= 0 && cmp_u1u2 <= 0)
PG_RETURN_RANGE(make_empty_range(typcache));
if (cmp_l1l2 <= 0 && cmp_u1l2 >= 0 && cmp_u1u2 <= 0)
{
lower2.inclusive = !lower2.inclusive;
lower2.lower = false; /* it will become the upper bound */
PG_RETURN_RANGE(make_range(typcache, &lower1, &lower2, false));
}
if (cmp_l1l2 >= 0 && cmp_u1u2 >= 0 && cmp_l1u2 <= 0)
{
upper2.inclusive = !upper2.inclusive;
upper2.lower = true; /* it will become the lower bound */
PG_RETURN_RANGE(make_range(typcache, &upper2, &upper1, false));
}
elog(ERROR, "unexpected case in range_minus");
PG_RETURN_NULL();
}
| Datum range_ne | ( | PG_FUNCTION_ARGS | ) |
Definition at line 599 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_get_typcache(), range_ne_internal(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_ne_internal(typcache, r1, r2));
}
| bool range_ne_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 592 of file rangetypes.c.
References range_eq_internal().
Referenced by range_ne().
{
return (!range_eq_internal(typcache, r1, r2));
}
| Datum range_out | ( | PG_FUNCTION_ARGS | ) |
Definition at line 119 of file rangetypes.c.
References get_range_io_data(), IOFunc_output, OutputFunctionCall(), PG_GETARG_RANGE, PG_RETURN_CSTRING, RangeIOData::proc, range(), range_deparse(), range_deserialize(), range_get_flags(), RANGE_HAS_LBOUND, RANGE_HAS_UBOUND, RangeTypeGetOid, RangeIOData::typcache, and RangeBound::val.
Referenced by anyrange_out().
{
RangeType *range = PG_GETARG_RANGE(0);
char *output_str;
RangeIOData *cache;
char flags;
char *lbound_str = NULL;
char *ubound_str = NULL;
RangeBound lower;
RangeBound upper;
bool empty;
cache = get_range_io_data(fcinfo, RangeTypeGetOid(range), IOFunc_output);
/* deserialize */
range_deserialize(cache->typcache, range, &lower, &upper, &empty);
flags = range_get_flags(range);
/* call element type's output function */
if (RANGE_HAS_LBOUND(flags))
lbound_str = OutputFunctionCall(&cache->proc, lower.val);
if (RANGE_HAS_UBOUND(flags))
ubound_str = OutputFunctionCall(&cache->proc, upper.val);
/* construct result string */
output_str = range_deparse(flags, lbound_str, ubound_str);
PG_RETURN_CSTRING(output_str);
}
| Datum range_overlaps | ( | PG_FUNCTION_ARGS | ) |
Definition at line 848 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_get_typcache(), range_overlaps_internal(), and RangeTypeGetOid.
Referenced by range_intersect(), and range_union().
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_overlaps_internal(typcache, r1, r2));
}
| bool range_overlaps_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 815 of file rangetypes.c.
References elog, ERROR, range_cmp_bounds(), range_deserialize(), and RangeTypeGetOid.
Referenced by range_gist_consistent_int(), range_gist_consistent_leaf(), range_overlaps(), and spg_range_quad_leaf_consistent().
{
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* An empty range does not overlap any other range */
if (empty1 || empty2)
return false;
if (range_cmp_bounds(typcache, &lower1, &lower2) >= 0 &&
range_cmp_bounds(typcache, &lower1, &upper2) <= 0)
return true;
if (range_cmp_bounds(typcache, &lower2, &lower1) >= 0 &&
range_cmp_bounds(typcache, &lower2, &upper1) <= 0)
return true;
return false;
}
| Datum range_overleft | ( | PG_FUNCTION_ARGS | ) |
Definition at line 889 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_get_typcache(), range_overleft_internal(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_overleft_internal(typcache, r1, r2));
}
| bool range_overleft_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 861 of file rangetypes.c.
References elog, ERROR, range_cmp_bounds(), range_deserialize(), and RangeTypeGetOid.
Referenced by range_gist_consistent_int(), range_gist_consistent_leaf(), range_overleft(), and spg_range_quad_leaf_consistent().
{
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* An empty range is neither before nor after any other range */
if (empty1 || empty2)
return false;
if (range_cmp_bounds(typcache, &upper1, &upper2) <= 0)
return true;
return false;
}
| Datum range_overright | ( | PG_FUNCTION_ARGS | ) |
Definition at line 930 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_get_typcache(), range_overright_internal(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
PG_RETURN_BOOL(range_overright_internal(typcache, r1, r2));
}
| bool range_overright_internal | ( | TypeCacheEntry * | typcache, | |
| RangeType * | r1, | |||
| RangeType * | r2 | |||
| ) |
Definition at line 902 of file rangetypes.c.
References elog, ERROR, PG_RETURN_BOOL, range_cmp_bounds(), range_deserialize(), and RangeTypeGetOid.
Referenced by range_gist_consistent_int(), range_gist_consistent_leaf(), range_overright(), and spg_range_quad_leaf_consistent().
{
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* An empty range is neither before nor after any other range */
if (empty1 || empty2)
PG_RETURN_BOOL(false);
if (range_cmp_bounds(typcache, &lower1, &lower2) >= 0)
PG_RETURN_BOOL(true);
PG_RETURN_BOOL(false);
}
| static void range_parse | ( | const char * | input_str, | |
| char * | flags, | |||
| char ** | lbound_str, | |||
| char ** | ubound_str | |||
| ) | [static] |
Definition at line 1942 of file rangetypes.c.
References ereport, errcode(), errdetail(), errmsg(), ERROR, pg_strncasecmp(), RANGE_EMPTY_LITERAL, and range_parse_bound().
Referenced by range_in().
{
const char *ptr = string;
bool infinite;
*flags = 0;
/* consume whitespace */
while (*ptr != '\0' && isspace((unsigned char) *ptr))
ptr++;
/* check for empty range */
if (pg_strncasecmp(ptr, RANGE_EMPTY_LITERAL,
strlen(RANGE_EMPTY_LITERAL)) == 0)
{
*flags = RANGE_EMPTY;
*lbound_str = NULL;
*ubound_str = NULL;
ptr += strlen(RANGE_EMPTY_LITERAL);
/* the rest should be whitespace */
while (*ptr != '\0' && isspace((unsigned char) *ptr))
ptr++;
/* should have consumed everything */
if (*ptr != '\0')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed range literal: \"%s\"",
string),
errdetail("Junk after \"empty\" key word.")));
return;
}
if (*ptr == '[')
{
*flags |= RANGE_LB_INC;
ptr++;
}
else if (*ptr == '(')
ptr++;
else
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed range literal: \"%s\"",
string),
errdetail("Missing left parenthesis or bracket.")));
ptr = range_parse_bound(string, ptr, lbound_str, &infinite);
if (infinite)
*flags |= RANGE_LB_INF;
if (*ptr == ',')
ptr++;
else
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed range literal: \"%s\"",
string),
errdetail("Missing comma after lower bound.")));
ptr = range_parse_bound(string, ptr, ubound_str, &infinite);
if (infinite)
*flags |= RANGE_UB_INF;
if (*ptr == ']')
{
*flags |= RANGE_UB_INC;
ptr++;
}
else if (*ptr == ')')
ptr++;
else /* must be a comma */
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed range literal: \"%s\"",
string),
errdetail("Too many commas.")));
/* consume whitespace */
while (*ptr != '\0' && isspace((unsigned char) *ptr))
ptr++;
if (*ptr != '\0')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed range literal: \"%s\"",
string),
errdetail("Junk after right parenthesis or bracket.")));
}
| static const char * range_parse_bound | ( | const char * | string, | |
| const char * | ptr, | |||
| char ** | bound_str, | |||
| bool * | infinite | |||
| ) | [static] |
Definition at line 2051 of file rangetypes.c.
References appendStringInfoChar(), buf, StringInfoData::data, ereport, errcode(), errdetail(), errmsg(), ERROR, and initStringInfo().
Referenced by range_parse().
{
StringInfoData buf;
/* Check for null: completely empty input means null */
if (*ptr == ',' || *ptr == ')' || *ptr == ']')
{
*bound_str = NULL;
*infinite = true;
}
else
{
/* Extract string for this bound */
bool inquote = false;
initStringInfo(&buf);
while (inquote || !(*ptr == ',' || *ptr == ')' || *ptr == ']'))
{
char ch = *ptr++;
if (ch == '\0')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed range literal: \"%s\"",
string),
errdetail("Unexpected end of input.")));
if (ch == '\\')
{
if (*ptr == '\0')
ereport(ERROR,
(errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
errmsg("malformed range literal: \"%s\"",
string),
errdetail("Unexpected end of input.")));
appendStringInfoChar(&buf, *ptr++);
}
else if (ch == '\"')
{
if (!inquote)
inquote = true;
else if (*ptr == '\"')
{
/* doubled quote within quote sequence */
appendStringInfoChar(&buf, *ptr++);
}
else
inquote = false;
}
else
appendStringInfoChar(&buf, ch);
}
*bound_str = buf.data;
*infinite = false;
}
return ptr;
}
| static char range_parse_flags | ( | const char * | flags_str | ) | [static] |
Definition at line 1870 of file rangetypes.c.
References ereport, errcode(), errhint(), errmsg(), and ERROR.
Referenced by range_constructor3().
{
char flags = 0;
if (flags_str[0] == '\0' ||
flags_str[1] == '\0' ||
flags_str[2] != '\0')
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("invalid range bound flags"),
errhint("Valid values are \"[]\", \"[)\", \"(]\", and \"()\".")));
switch (flags_str[0])
{
case '[':
flags |= RANGE_LB_INC;
break;
case '(':
break;
default:
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("invalid range bound flags"),
errhint("Valid values are \"[]\", \"[)\", \"(]\", and \"()\".")));
}
switch (flags_str[1])
{
case ']':
flags |= RANGE_UB_INC;
break;
case ')':
break;
default:
ereport(ERROR,
(errcode(ERRCODE_SYNTAX_ERROR),
errmsg("invalid range bound flags"),
errhint("Valid values are \"[]\", \"[)\", \"(]\", and \"()\".")));
}
return flags;
}
| Datum range_recv | ( | PG_FUNCTION_ARGS | ) |
Definition at line 157 of file rangetypes.c.
References appendBinaryStringInfo(), buf, StringInfoData::data, get_range_io_data(), RangeBound::inclusive, RangeBound::infinite, initStringInfo(), IOFunc_receive, RangeBound::lower, make_range(), pfree(), PG_GETARG_INT32, PG_GETARG_OID, PG_GETARG_POINTER, PG_RETURN_RANGE, pq_getmsgbyte(), pq_getmsgbytes(), pq_getmsgend(), pq_getmsgint(), RangeIOData::proc, RANGE_EMPTY, RANGE_HAS_LBOUND, RANGE_HAS_UBOUND, RANGE_LB_INC, RANGE_LB_INF, RANGE_UB_INC, ReceiveFunctionCall(), RangeIOData::typcache, RangeIOData::typioparam, and RangeBound::val.
{
StringInfo buf = (StringInfo) PG_GETARG_POINTER(0);
Oid rngtypoid = PG_GETARG_OID(1);
int32 typmod = PG_GETARG_INT32(2);
RangeType *range;
RangeIOData *cache;
char flags;
RangeBound lower;
RangeBound upper;
cache = get_range_io_data(fcinfo, rngtypoid, IOFunc_receive);
/* receive the flags... */
flags = (unsigned char) pq_getmsgbyte(buf);
/*
* Mask out any unsupported flags, particularly RANGE_xB_NULL which would
* confuse following tests. Note that range_serialize will take care of
* cleaning up any inconsistencies in the remaining flags.
*/
flags &= (RANGE_EMPTY |
RANGE_LB_INC |
RANGE_LB_INF |
RANGE_UB_INC |
RANGE_UB_INF);
/* receive the bounds ... */
if (RANGE_HAS_LBOUND(flags))
{
uint32 bound_len = pq_getmsgint(buf, 4);
const char *bound_data = pq_getmsgbytes(buf, bound_len);
StringInfoData bound_buf;
initStringInfo(&bound_buf);
appendBinaryStringInfo(&bound_buf, bound_data, bound_len);
lower.val = ReceiveFunctionCall(&cache->proc,
&bound_buf,
cache->typioparam,
typmod);
pfree(bound_buf.data);
}
else
lower.val = (Datum) 0;
if (RANGE_HAS_UBOUND(flags))
{
uint32 bound_len = pq_getmsgint(buf, 4);
const char *bound_data = pq_getmsgbytes(buf, bound_len);
StringInfoData bound_buf;
initStringInfo(&bound_buf);
appendBinaryStringInfo(&bound_buf, bound_data, bound_len);
upper.val = ReceiveFunctionCall(&cache->proc,
&bound_buf,
cache->typioparam,
typmod);
pfree(bound_buf.data);
}
else
upper.val = (Datum) 0;
pq_getmsgend(buf);
/* finish constructing RangeBound representation */
lower.infinite = (flags & RANGE_LB_INF) != 0;
lower.inclusive = (flags & RANGE_LB_INC) != 0;
lower.lower = true;
upper.infinite = (flags & RANGE_UB_INF) != 0;
upper.inclusive = (flags & RANGE_UB_INC) != 0;
upper.lower = false;
/* serialize and canonicalize */
range = make_range(cache->typcache, &lower, &upper, flags & RANGE_EMPTY);
PG_RETURN_RANGE(range);
}
| Datum range_send | ( | PG_FUNCTION_ARGS | ) |
Definition at line 238 of file rangetypes.c.
References buf, get_range_io_data(), IOFunc_send, makeStringInfo(), PG_GETARG_RANGE, PG_RETURN_BYTEA_P, PointerGetDatum, pq_begintypsend(), pq_endtypsend(), pq_sendbyte(), pq_sendbytes(), pq_sendint(), RangeIOData::proc, range(), range_deserialize(), range_get_flags(), RANGE_HAS_LBOUND, RANGE_HAS_UBOUND, RangeTypeGetOid, SendFunctionCall(), RangeIOData::typcache, RangeBound::val, VARDATA, and VARSIZE.
{
RangeType *range = PG_GETARG_RANGE(0);
StringInfo buf = makeStringInfo();
RangeIOData *cache;
char flags;
RangeBound lower;
RangeBound upper;
bool empty;
cache = get_range_io_data(fcinfo, RangeTypeGetOid(range), IOFunc_send);
/* deserialize */
range_deserialize(cache->typcache, range, &lower, &upper, &empty);
flags = range_get_flags(range);
/* construct output */
pq_begintypsend(buf);
pq_sendbyte(buf, flags);
if (RANGE_HAS_LBOUND(flags))
{
Datum bound = PointerGetDatum(SendFunctionCall(&cache->proc,
lower.val));
uint32 bound_len = VARSIZE(bound) - VARHDRSZ;
char *bound_data = VARDATA(bound);
pq_sendint(buf, bound_len, 4);
pq_sendbytes(buf, bound_data, bound_len);
}
if (RANGE_HAS_UBOUND(flags))
{
Datum bound = PointerGetDatum(SendFunctionCall(&cache->proc,
upper.val));
uint32 bound_len = VARSIZE(bound) - VARHDRSZ;
char *bound_data = VARDATA(bound);
pq_sendint(buf, bound_len, 4);
pq_sendbytes(buf, bound_data, bound_len);
}
PG_RETURN_BYTEA_P(pq_endtypsend(buf));
}
| RangeType* range_serialize | ( | TypeCacheEntry * | typcache, | |
| RangeBound * | lower, | |||
| RangeBound * | upper, | |||
| bool | empty | |||
| ) |
Definition at line 1466 of file rangetypes.c.
References Assert, datum_compute_size(), datum_write(), ereport, errcode(), errmsg(), ERROR, RangeBound::inclusive, RangeBound::infinite, RangeBound::lower, MAXALIGN, palloc0(), PG_DETOAST_DATUM_PACKED, PointerGetDatum, range_cmp_bound_values(), RANGE_HAS_LBOUND, RANGE_HAS_UBOUND, RangeType::rangetypid, TypeCacheEntry::rngelemtype, SET_VARSIZE, TypeCacheEntry::typalign, TypeCacheEntry::typbyval, TypeCacheEntry::type_id, TypeCacheEntry::typlen, TypeCacheEntry::typstorage, and RangeBound::val.
Referenced by compute_range_stats(), daterange_canonical(), int4range_canonical(), int8range_canonical(), make_range(), rangesel(), and spg_range_quad_picksplit().
{
RangeType *range;
int cmp;
Size msize;
Pointer ptr;
int16 typlen;
bool typbyval;
char typalign;
char typstorage;
char flags = 0;
/*
* Verify range is not invalid on its face, and construct flags value,
* preventing any non-canonical combinations such as infinite+inclusive.
*/
Assert(lower->lower);
Assert(!upper->lower);
if (empty)
flags |= RANGE_EMPTY;
else
{
cmp = range_cmp_bound_values(typcache, lower, upper);
/* error check: if lower bound value is above upper, it's wrong */
if (cmp > 0)
ereport(ERROR,
(errcode(ERRCODE_DATA_EXCEPTION),
errmsg("range lower bound must be less than or equal to range upper bound")));
/* if bounds are equal, and not both inclusive, range is empty */
if (cmp == 0 && !(lower->inclusive && upper->inclusive))
flags |= RANGE_EMPTY;
else
{
/* infinite boundaries are never inclusive */
if (lower->infinite)
flags |= RANGE_LB_INF;
else if (lower->inclusive)
flags |= RANGE_LB_INC;
if (upper->infinite)
flags |= RANGE_UB_INF;
else if (upper->inclusive)
flags |= RANGE_UB_INC;
}
}
/* Fetch information about range's element type */
typlen = typcache->rngelemtype->typlen;
typbyval = typcache->rngelemtype->typbyval;
typalign = typcache->rngelemtype->typalign;
typstorage = typcache->rngelemtype->typstorage;
/* Count space for varlena header and range type's OID */
msize = sizeof(RangeType);
Assert(msize == MAXALIGN(msize));
/* Count space for bounds */
if (RANGE_HAS_LBOUND(flags))
{
/*
* Make sure item to be inserted is not toasted. It is essential that
* we not insert an out-of-line toast value pointer into a range
* object, for the same reasons that arrays and records can't contain
* them. It would work to store a compressed-in-line value, but we
* prefer to decompress and then let compression be applied to the
* whole range object if necessary. But, unlike arrays, we do allow
* short-header varlena objects to stay as-is.
*/
if (typlen == -1)
lower->val = PointerGetDatum(PG_DETOAST_DATUM_PACKED(lower->val));
msize = datum_compute_size(msize, lower->val, typbyval, typalign,
typlen, typstorage);
}
if (RANGE_HAS_UBOUND(flags))
{
/* Make sure item to be inserted is not toasted */
if (typlen == -1)
upper->val = PointerGetDatum(PG_DETOAST_DATUM_PACKED(upper->val));
msize = datum_compute_size(msize, upper->val, typbyval, typalign,
typlen, typstorage);
}
/* Add space for flag byte */
msize += sizeof(char);
/* Note: zero-fill is required here, just as in heap tuples */
range = (RangeType *) palloc0(msize);
SET_VARSIZE(range, msize);
/* Now fill in the datum */
range->rangetypid = typcache->type_id;
ptr = (char *) (range + 1);
if (RANGE_HAS_LBOUND(flags))
{
Assert(lower->lower);
ptr = datum_write(ptr, lower->val, typbyval, typalign, typlen,
typstorage);
}
if (RANGE_HAS_UBOUND(flags))
{
Assert(!upper->lower);
ptr = datum_write(ptr, upper->val, typbyval, typalign, typlen,
typstorage);
}
*((char *) ptr) = flags;
return range;
}
| void range_set_contain_empty | ( | RangeType * | range | ) |
Definition at line 1676 of file rangetypes.c.
References VARSIZE.
Referenced by range_super_union().
{
char *flagsp;
/* flag byte is datum's last byte */
flagsp = (char *) range + VARSIZE(range) - 1;
*flagsp |= RANGE_CONTAIN_EMPTY;
}
| Datum range_union | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1011 of file rangetypes.c.
References DatumGetBool, elog, ereport, errcode(), errmsg(), ERROR, make_range(), PG_GETARG_RANGE, PG_RETURN_RANGE, range_adjacent(), range_cmp_bounds(), range_deserialize(), range_get_typcache(), range_overlaps(), and RangeTypeGetOid.
{
RangeType *r1 = PG_GETARG_RANGE(0);
RangeType *r2 = PG_GETARG_RANGE(1);
TypeCacheEntry *typcache;
RangeBound lower1,
lower2;
RangeBound upper1,
upper2;
bool empty1,
empty2;
RangeBound *result_lower;
RangeBound *result_upper;
/* Different types should be prevented by ANYRANGE matching rules */
if (RangeTypeGetOid(r1) != RangeTypeGetOid(r2))
elog(ERROR, "range types do not match");
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
range_deserialize(typcache, r1, &lower1, &upper1, &empty1);
range_deserialize(typcache, r2, &lower2, &upper2, &empty2);
/* if either is empty, the other is the correct answer */
if (empty1)
PG_RETURN_RANGE(r2);
if (empty2)
PG_RETURN_RANGE(r1);
if (!DatumGetBool(range_overlaps(fcinfo)) &&
!DatumGetBool(range_adjacent(fcinfo)))
ereport(ERROR,
(errcode(ERRCODE_DATA_EXCEPTION),
errmsg("result of range union would not be contiguous")));
if (range_cmp_bounds(typcache, &lower1, &lower2) < 0)
result_lower = &lower1;
else
result_lower = &lower2;
if (range_cmp_bounds(typcache, &upper1, &upper2) > 0)
result_upper = &upper1;
else
result_upper = &upper2;
PG_RETURN_RANGE(make_range(typcache, result_lower, result_upper, false));
}
| Datum range_upper | ( | PG_FUNCTION_ARGS | ) |
Definition at line 441 of file rangetypes.c.
References RangeBound::infinite, PG_GETARG_RANGE, PG_RETURN_DATUM, PG_RETURN_NULL, range_deserialize(), range_get_typcache(), RangeTypeGetOid, and RangeBound::val.
{
RangeType *r1 = PG_GETARG_RANGE(0);
TypeCacheEntry *typcache;
RangeBound lower;
RangeBound upper;
bool empty;
typcache = range_get_typcache(fcinfo, RangeTypeGetOid(r1));
range_deserialize(typcache, r1, &lower, &upper, &empty);
/* Return NULL if there's no finite upper bound */
if (empty || upper.infinite)
PG_RETURN_NULL();
PG_RETURN_DATUM(upper.val);
}
| Datum range_upper_inc | ( | PG_FUNCTION_ARGS | ) |
Definition at line 485 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_get_flags(), and RANGE_UB_INC.
{
RangeType *r1 = PG_GETARG_RANGE(0);
char flags = range_get_flags(r1);
PG_RETURN_BOOL(flags & RANGE_UB_INC);
}
| Datum range_upper_inf | ( | PG_FUNCTION_ARGS | ) |
Definition at line 505 of file rangetypes.c.
References PG_GETARG_RANGE, PG_RETURN_BOOL, range_get_flags(), and RANGE_UB_INF.
{
RangeType *r1 = PG_GETARG_RANGE(0);
char flags = range_get_flags(r1);
PG_RETURN_BOOL(flags & RANGE_UB_INF);
}
| Datum tsrange_subdiff | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1393 of file rangetypes.c.
References PG_GETARG_TIMESTAMP, PG_RETURN_FLOAT8, and USECS_PER_SEC.
{
Timestamp v1 = PG_GETARG_TIMESTAMP(0);
Timestamp v2 = PG_GETARG_TIMESTAMP(1);
float8 result;
#ifdef HAVE_INT64_TIMESTAMP
result = ((float8) v1 - (float8) v2) / USECS_PER_SEC;
#else
result = v1 - v2;
#endif
PG_RETURN_FLOAT8(result);
}
| Datum tstzrange_subdiff | ( | PG_FUNCTION_ARGS | ) |
Definition at line 1409 of file rangetypes.c.
References PG_GETARG_TIMESTAMP, PG_RETURN_FLOAT8, and USECS_PER_SEC.
{
Timestamp v1 = PG_GETARG_TIMESTAMP(0);
Timestamp v2 = PG_GETARG_TIMESTAMP(1);
float8 result;
#ifdef HAVE_INT64_TIMESTAMP
result = ((float8) v1 - (float8) v2) / USECS_PER_SEC;
#else
result = v1 - v2;
#endif
PG_RETURN_FLOAT8(result);
}
1.7.1