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-rw-r--r--contrib/intarray/_int_op.c432
1 files changed, 432 insertions, 0 deletions
diff --git a/contrib/intarray/_int_op.c b/contrib/intarray/_int_op.c
new file mode 100644
index 0000000..5b164f6
--- /dev/null
+++ b/contrib/intarray/_int_op.c
@@ -0,0 +1,432 @@
+/*
+ * 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);
+}