diff options
| -rw-r--r-- | contrib/intarray/_int_tool.c | 13 | ||||
| -rw-r--r-- | contrib/intarray/expected/_int.out | 6 | ||||
| -rw-r--r-- | contrib/intarray/sql/_int.sql | 1 |
3 files changed, 14 insertions, 6 deletions
diff --git a/contrib/intarray/_int_tool.c b/contrib/intarray/_int_tool.c index 79f018d333b..132d1531605 100644 --- a/contrib/intarray/_int_tool.c +++ b/contrib/intarray/_int_tool.c @@ -140,7 +140,8 @@ inner_int_inter(ArrayType *a, ArrayType *b) *db, *dr; int i, - j; + j, + k; if (ARRISEMPTY(a) || ARRISEMPTY(b)) return new_intArrayType(0); @@ -152,15 +153,15 @@ inner_int_inter(ArrayType *a, ArrayType *b) r = new_intArrayType(Min(na, nb)); dr = ARRPTR(r); - i = j = 0; + i = j = k = 0; while (i < na && j < nb) { if (da[i] < db[j]) i++; else if (da[i] == db[j]) { - if (i + j == 0 || (i + j > 0 && *(dr - 1) != db[j])) - *dr++ = db[j]; + if (k == 0 || dr[k - 1] != db[j]) + dr[k++] = db[j]; i++; j++; } @@ -168,13 +169,13 @@ inner_int_inter(ArrayType *a, ArrayType *b) j++; } - if ((dr - ARRPTR(r)) == 0) + if (k == 0) { pfree(r); return new_intArrayType(0); } else - return resize_intArrayType(r, dr - ARRPTR(r)); + return resize_intArrayType(r, k); } void diff --git a/contrib/intarray/expected/_int.out b/contrib/intarray/expected/_int.out index 6ed3cc6ced0..4080b9633fe 100644 --- a/contrib/intarray/expected/_int.out +++ b/contrib/intarray/expected/_int.out @@ -137,6 +137,12 @@ SELECT '{123,623,445}'::int[] & '{1623,623}'; {623} (1 row) +SELECT '{-1,3,1}'::int[] & '{1,2}'; + ?column? +---------- + {1} +(1 row) + --test query_int SELECT '1'::query_int; query_int diff --git a/contrib/intarray/sql/_int.sql b/contrib/intarray/sql/_int.sql index b60e936dc52..216c5c58d61 100644 --- a/contrib/intarray/sql/_int.sql +++ b/contrib/intarray/sql/_int.sql @@ -24,6 +24,7 @@ SELECT '{123,623,445}'::int[] | 623; SELECT '{123,623,445}'::int[] | 1623; SELECT '{123,623,445}'::int[] | '{1623,623}'; SELECT '{123,623,445}'::int[] & '{1623,623}'; +SELECT '{-1,3,1}'::int[] & '{1,2}'; --test query_int |