433 lines
7.6 KiB
C
433 lines
7.6 KiB
C
/*
|
|
* contrib/intarray/_int_op.c
|
|
*/
|
|
#include "postgres.h"
|
|
|
|
#include "_int.h"
|
|
|
|
PG_MODULE_MAGIC;
|
|
|
|
PG_FUNCTION_INFO_V1(_int_different);
|
|
PG_FUNCTION_INFO_V1(_int_same);
|
|
PG_FUNCTION_INFO_V1(_int_contains);
|
|
PG_FUNCTION_INFO_V1(_int_contained);
|
|
PG_FUNCTION_INFO_V1(_int_overlap);
|
|
PG_FUNCTION_INFO_V1(_int_union);
|
|
PG_FUNCTION_INFO_V1(_int_inter);
|
|
|
|
Datum
|
|
_int_contained(PG_FUNCTION_ARGS)
|
|
{
|
|
/* just reverse the operands and call _int_contains */
|
|
return DirectFunctionCall2(_int_contains,
|
|
PG_GETARG_DATUM(1),
|
|
PG_GETARG_DATUM(0));
|
|
}
|
|
|
|
Datum
|
|
_int_contains(PG_FUNCTION_ARGS)
|
|
{
|
|
/* Force copy so we can modify the arrays in-place */
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
ArrayType *b = PG_GETARG_ARRAYTYPE_P_COPY(1);
|
|
bool res;
|
|
|
|
CHECKARRVALID(a);
|
|
CHECKARRVALID(b);
|
|
PREPAREARR(a);
|
|
PREPAREARR(b);
|
|
res = inner_int_contains(a, b);
|
|
pfree(a);
|
|
pfree(b);
|
|
PG_RETURN_BOOL(res);
|
|
}
|
|
|
|
Datum
|
|
_int_different(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_BOOL(!DatumGetBool(DirectFunctionCall2(_int_same,
|
|
PointerGetDatum(PG_GETARG_POINTER(0)),
|
|
PointerGetDatum(PG_GETARG_POINTER(1)))));
|
|
}
|
|
|
|
Datum
|
|
_int_same(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
ArrayType *b = PG_GETARG_ARRAYTYPE_P_COPY(1);
|
|
int na,
|
|
nb;
|
|
int n;
|
|
int *da,
|
|
*db;
|
|
bool result;
|
|
|
|
CHECKARRVALID(a);
|
|
CHECKARRVALID(b);
|
|
na = ARRNELEMS(a);
|
|
nb = ARRNELEMS(b);
|
|
da = ARRPTR(a);
|
|
db = ARRPTR(b);
|
|
|
|
result = false;
|
|
|
|
if (na == nb)
|
|
{
|
|
SORT(a);
|
|
SORT(b);
|
|
result = true;
|
|
|
|
for (n = 0; n < na; n++)
|
|
{
|
|
if (da[n] != db[n])
|
|
{
|
|
result = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
pfree(a);
|
|
pfree(b);
|
|
|
|
PG_RETURN_BOOL(result);
|
|
}
|
|
|
|
/* _int_overlap -- does a overlap b?
|
|
*/
|
|
Datum
|
|
_int_overlap(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
ArrayType *b = PG_GETARG_ARRAYTYPE_P_COPY(1);
|
|
bool result;
|
|
|
|
CHECKARRVALID(a);
|
|
CHECKARRVALID(b);
|
|
if (ARRISEMPTY(a) || ARRISEMPTY(b))
|
|
return false;
|
|
|
|
SORT(a);
|
|
SORT(b);
|
|
|
|
result = inner_int_overlap(a, b);
|
|
|
|
pfree(a);
|
|
pfree(b);
|
|
|
|
PG_RETURN_BOOL(result);
|
|
}
|
|
|
|
Datum
|
|
_int_union(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
ArrayType *b = PG_GETARG_ARRAYTYPE_P_COPY(1);
|
|
ArrayType *result;
|
|
|
|
CHECKARRVALID(a);
|
|
CHECKARRVALID(b);
|
|
|
|
SORT(a);
|
|
SORT(b);
|
|
|
|
result = inner_int_union(a, b);
|
|
|
|
pfree(a);
|
|
pfree(b);
|
|
|
|
PG_RETURN_POINTER(result);
|
|
}
|
|
|
|
Datum
|
|
_int_inter(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
ArrayType *b = PG_GETARG_ARRAYTYPE_P_COPY(1);
|
|
ArrayType *result;
|
|
|
|
CHECKARRVALID(a);
|
|
CHECKARRVALID(b);
|
|
|
|
SORT(a);
|
|
SORT(b);
|
|
|
|
result = inner_int_inter(a, b);
|
|
|
|
pfree(a);
|
|
pfree(b);
|
|
|
|
PG_RETURN_POINTER(result);
|
|
}
|
|
|
|
|
|
PG_FUNCTION_INFO_V1(intset);
|
|
PG_FUNCTION_INFO_V1(icount);
|
|
PG_FUNCTION_INFO_V1(sort);
|
|
PG_FUNCTION_INFO_V1(sort_asc);
|
|
PG_FUNCTION_INFO_V1(sort_desc);
|
|
PG_FUNCTION_INFO_V1(uniq);
|
|
PG_FUNCTION_INFO_V1(idx);
|
|
PG_FUNCTION_INFO_V1(subarray);
|
|
PG_FUNCTION_INFO_V1(intarray_push_elem);
|
|
PG_FUNCTION_INFO_V1(intarray_push_array);
|
|
PG_FUNCTION_INFO_V1(intarray_del_elem);
|
|
PG_FUNCTION_INFO_V1(intset_union_elem);
|
|
PG_FUNCTION_INFO_V1(intset_subtract);
|
|
|
|
Datum
|
|
intset(PG_FUNCTION_ARGS)
|
|
{
|
|
PG_RETURN_POINTER(int_to_intset(PG_GETARG_INT32(0)));
|
|
}
|
|
|
|
Datum
|
|
icount(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P(0);
|
|
int32 count = ARRNELEMS(a);
|
|
|
|
PG_FREE_IF_COPY(a, 0);
|
|
PG_RETURN_INT32(count);
|
|
}
|
|
|
|
Datum
|
|
sort(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
text *dirstr = (fcinfo->nargs == 2) ? PG_GETARG_TEXT_PP(1) : NULL;
|
|
int32 dc = (dirstr) ? VARSIZE_ANY_EXHDR(dirstr) : 0;
|
|
char *d = (dirstr) ? VARDATA_ANY(dirstr) : NULL;
|
|
int dir = -1;
|
|
|
|
CHECKARRVALID(a);
|
|
if (ARRNELEMS(a) < 2)
|
|
PG_RETURN_POINTER(a);
|
|
|
|
if (dirstr == NULL || (dc == 3
|
|
&& (d[0] == 'A' || d[0] == 'a')
|
|
&& (d[1] == 'S' || d[1] == 's')
|
|
&& (d[2] == 'C' || d[2] == 'c')))
|
|
dir = 1;
|
|
else if (dc == 4
|
|
&& (d[0] == 'D' || d[0] == 'd')
|
|
&& (d[1] == 'E' || d[1] == 'e')
|
|
&& (d[2] == 'S' || d[2] == 's')
|
|
&& (d[3] == 'C' || d[3] == 'c'))
|
|
dir = 0;
|
|
if (dir == -1)
|
|
ereport(ERROR,
|
|
(errcode(ERRCODE_INVALID_PARAMETER_VALUE),
|
|
errmsg("second parameter must be \"ASC\" or \"DESC\"")));
|
|
QSORT(a, dir);
|
|
PG_RETURN_POINTER(a);
|
|
}
|
|
|
|
Datum
|
|
sort_asc(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
|
|
CHECKARRVALID(a);
|
|
QSORT(a, 1);
|
|
PG_RETURN_POINTER(a);
|
|
}
|
|
|
|
Datum
|
|
sort_desc(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
|
|
CHECKARRVALID(a);
|
|
QSORT(a, 0);
|
|
PG_RETURN_POINTER(a);
|
|
}
|
|
|
|
Datum
|
|
uniq(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
|
|
CHECKARRVALID(a);
|
|
if (ARRNELEMS(a) < 2)
|
|
PG_RETURN_POINTER(a);
|
|
a = _int_unique(a);
|
|
PG_RETURN_POINTER(a);
|
|
}
|
|
|
|
Datum
|
|
idx(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P(0);
|
|
int32 result;
|
|
|
|
CHECKARRVALID(a);
|
|
result = ARRNELEMS(a);
|
|
if (result)
|
|
result = intarray_match_first(a, PG_GETARG_INT32(1));
|
|
PG_FREE_IF_COPY(a, 0);
|
|
PG_RETURN_INT32(result);
|
|
}
|
|
|
|
Datum
|
|
subarray(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P(0);
|
|
int32 start = PG_GETARG_INT32(1);
|
|
int32 len = (fcinfo->nargs == 3) ? PG_GETARG_INT32(2) : 0;
|
|
int32 end = 0;
|
|
int32 c;
|
|
ArrayType *result;
|
|
|
|
start = (start > 0) ? start - 1 : start;
|
|
|
|
CHECKARRVALID(a);
|
|
if (ARRISEMPTY(a))
|
|
{
|
|
PG_FREE_IF_COPY(a, 0);
|
|
PG_RETURN_POINTER(new_intArrayType(0));
|
|
}
|
|
|
|
c = ARRNELEMS(a);
|
|
|
|
if (start < 0)
|
|
start = c + start;
|
|
|
|
if (len < 0)
|
|
end = c + len;
|
|
else if (len == 0)
|
|
end = c;
|
|
else
|
|
end = start + len;
|
|
|
|
if (end > c)
|
|
end = c;
|
|
|
|
if (start < 0)
|
|
start = 0;
|
|
|
|
if (start >= end || end <= 0)
|
|
{
|
|
PG_FREE_IF_COPY(a, 0);
|
|
PG_RETURN_POINTER(new_intArrayType(0));
|
|
}
|
|
|
|
result = new_intArrayType(end - start);
|
|
if (end - start > 0)
|
|
memcpy(ARRPTR(result), ARRPTR(a) + start, (end - start) * sizeof(int32));
|
|
PG_FREE_IF_COPY(a, 0);
|
|
PG_RETURN_POINTER(result);
|
|
}
|
|
|
|
Datum
|
|
intarray_push_elem(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P(0);
|
|
ArrayType *result;
|
|
|
|
result = intarray_add_elem(a, PG_GETARG_INT32(1));
|
|
PG_FREE_IF_COPY(a, 0);
|
|
PG_RETURN_POINTER(result);
|
|
}
|
|
|
|
Datum
|
|
intarray_push_array(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P(0);
|
|
ArrayType *b = PG_GETARG_ARRAYTYPE_P(1);
|
|
ArrayType *result;
|
|
|
|
result = intarray_concat_arrays(a, b);
|
|
PG_FREE_IF_COPY(a, 0);
|
|
PG_FREE_IF_COPY(b, 1);
|
|
PG_RETURN_POINTER(result);
|
|
}
|
|
|
|
Datum
|
|
intarray_del_elem(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
int32 elem = PG_GETARG_INT32(1);
|
|
int32 c;
|
|
int32 *aa;
|
|
int32 n = 0,
|
|
i;
|
|
|
|
CHECKARRVALID(a);
|
|
if (!ARRISEMPTY(a))
|
|
{
|
|
c = ARRNELEMS(a);
|
|
aa = ARRPTR(a);
|
|
for (i = 0; i < c; i++)
|
|
{
|
|
if (aa[i] != elem)
|
|
{
|
|
if (i > n)
|
|
aa[n++] = aa[i];
|
|
else
|
|
n++;
|
|
}
|
|
}
|
|
a = resize_intArrayType(a, n);
|
|
}
|
|
PG_RETURN_POINTER(a);
|
|
}
|
|
|
|
Datum
|
|
intset_union_elem(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P(0);
|
|
ArrayType *result;
|
|
|
|
result = intarray_add_elem(a, PG_GETARG_INT32(1));
|
|
PG_FREE_IF_COPY(a, 0);
|
|
QSORT(result, 1);
|
|
PG_RETURN_POINTER(_int_unique(result));
|
|
}
|
|
|
|
Datum
|
|
intset_subtract(PG_FUNCTION_ARGS)
|
|
{
|
|
ArrayType *a = PG_GETARG_ARRAYTYPE_P_COPY(0);
|
|
ArrayType *b = PG_GETARG_ARRAYTYPE_P_COPY(1);
|
|
ArrayType *result;
|
|
int32 ca;
|
|
int32 cb;
|
|
int32 *aa,
|
|
*bb,
|
|
*r;
|
|
int32 n = 0,
|
|
i = 0,
|
|
k = 0;
|
|
|
|
CHECKARRVALID(a);
|
|
CHECKARRVALID(b);
|
|
|
|
QSORT(a, 1);
|
|
a = _int_unique(a);
|
|
ca = ARRNELEMS(a);
|
|
QSORT(b, 1);
|
|
b = _int_unique(b);
|
|
cb = ARRNELEMS(b);
|
|
result = new_intArrayType(ca);
|
|
aa = ARRPTR(a);
|
|
bb = ARRPTR(b);
|
|
r = ARRPTR(result);
|
|
while (i < ca)
|
|
{
|
|
if (k == cb || aa[i] < bb[k])
|
|
r[n++] = aa[i++];
|
|
else if (aa[i] == bb[k])
|
|
{
|
|
i++;
|
|
k++;
|
|
}
|
|
else
|
|
k++;
|
|
}
|
|
result = resize_intArrayType(result, n);
|
|
pfree(a);
|
|
pfree(b);
|
|
PG_RETURN_POINTER(result);
|
|
}
|