diff options
| -rw-r--r-- | src/backend/executor/execGrouping.c | 3 | ||||
| -rw-r--r-- | src/test/regress/expected/with.out | 15 | ||||
| -rw-r--r-- | src/test/regress/sql/with.sql | 12 |
3 files changed, 28 insertions, 2 deletions
diff --git a/src/backend/executor/execGrouping.c b/src/backend/executor/execGrouping.c index 4a8f72305ce..a69fa0f8cc3 100644 --- a/src/backend/executor/execGrouping.c +++ b/src/backend/executor/execGrouping.c @@ -236,9 +236,8 @@ BuildTupleHashTableExt(PlanState *parent, hash_iv); /* build comparator for all columns */ - /* XXX: should we support non-minimal tuples for the inputslot? */ hashtable->tab_eq_func = ExecBuildGroupingEqual(inputDesc, inputDesc, - &TTSOpsMinimalTuple, &TTSOpsMinimalTuple, + NULL, &TTSOpsMinimalTuple, numCols, keyColIdx, eqfuncoids, collations, allow_jit ? parent : NULL); diff --git a/src/test/regress/expected/with.out b/src/test/regress/expected/with.out index ff9754603bd..7a51e2eb757 100644 --- a/src/test/regress/expected/with.out +++ b/src/test/regress/expected/with.out @@ -656,6 +656,21 @@ SELECT t1.id, t2.path, t2 FROM t AS t1 JOIN t AS t2 ON 16 | {3,7,11,16} | (16,"{3,7,11,16}") (16 rows) +CREATE TEMP TABLE duplicates (a INT NOT NULL); +INSERT INTO duplicates VALUES(1), (1); +-- Try out a recursive UNION case where the non-recursive part's table slot +-- uses TTSOpsBufferHeapTuple and contains duplicate rows. +WITH RECURSIVE cte (a) as ( + SELECT a FROM duplicates + UNION + SELECT a FROM cte +) +SELECT a FROM cte; + a +--- + 1 +(1 row) + -- test that column statistics from a materialized CTE are available -- to upper planner (otherwise, we'd get a stupider plan) explain (costs off) diff --git a/src/test/regress/sql/with.sql b/src/test/regress/sql/with.sql index aca7bae6ddd..dcdaab5eff0 100644 --- a/src/test/regress/sql/with.sql +++ b/src/test/regress/sql/with.sql @@ -361,6 +361,18 @@ UNION ALL SELECT t1.id, t2.path, t2 FROM t AS t1 JOIN t AS t2 ON (t1.id=t2.id); +CREATE TEMP TABLE duplicates (a INT NOT NULL); +INSERT INTO duplicates VALUES(1), (1); + +-- Try out a recursive UNION case where the non-recursive part's table slot +-- uses TTSOpsBufferHeapTuple and contains duplicate rows. +WITH RECURSIVE cte (a) as ( + SELECT a FROM duplicates + UNION + SELECT a FROM cte +) +SELECT a FROM cte; + -- test that column statistics from a materialized CTE are available -- to upper planner (otherwise, we'd get a stupider plan) explain (costs off) |