iwanttobepowerful commented on code in PR #5385:
URL: https://github.com/apache/calcite/pull/5385#discussion_r4454438294
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core/src/test/resources/sql/sub-query.iq:
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@@ -11242,3 +11246,78 @@ order by e.ename;
(14 rows)
!ok
+
+!if (use_old_decorr) {
+# Test case for [CALCITE-7914] Rebuilding correlation values must not resample
the outer input.
+select (select count(*) from (values 1) s(x) where t.k < s.x) as p
+from (select deptno as k from dept tablesample bernoulli(50)) t;
+EnumerableCalc(expr#0..1=[{inputs}], expr#2=[IS NULL($t1)], expr#3=[0:BIGINT],
expr#4=[CASE($t2, $t3, $t1)], P=[$t4])
+ EnumerableCorrelate(correlation=[$cor0], joinType=[left],
requiredColumns=[{0}])
Review Comment:
also here
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