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[BP-2.2][FLINK-38750][table] Validation of queries with functions erroneously invoked under SELECT fails with StackOverflow #27298

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Merged
snuyanzin merged 1 commit into from
Dec 2, 2025
Merged

[BP-2.2][FLINK-38750][table] Validation of queries with functions erroneously invoked under SELECT fails with StackOverflow #27298

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4 changes: 3 additions & 1 deletion ...ava/org/apache/flink/table/planner/functions/inference/TypeInferenceOperandInference.java
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Original file line number Diff line number Diff line change
Expand Up @@ -81,8 +81,10 @@ public void inferOperandTypes(
false)) {
inferOperandTypesOrError(unwrapTypeFactory(callBinding), callContext, operandTypes);
}
} catch (ValidationException | CalciteContextException e) {
} catch (ValidationException e) {
// let operand checker fail
} catch (CalciteContextException e) {
throw e;
} catch (Throwable t) {
throw createUnexpectedException(callContext, t);
}
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15 changes: 15 additions & 0 deletions ...able-planner/src/test/scala/org/apache/flink/table/planner/plan/stream/sql/CalcTest.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -108,6 +108,21 @@ class CalcTest extends TableTestBase {
.isThrownBy(() => util.tableEnv.sqlQuery("SELECT a, foo FROM MyTable"))
}

@Test
def testCoalesceOnInvalidField(): Unit = {
assertThatExceptionOfType(classOf[ValidationException])
.isThrownBy(() => util.verifyExecPlan("SELECT coalesce(SELECT invalid)"))
.withMessageContaining("Column 'invalid' not found in any table")
}

@Test
def testNestedCoalesceOnInvalidField(): Unit = {
assertThatExceptionOfType(classOf[ValidationException])
.isThrownBy(
() => util.verifyExecPlan("SELECT coalesce(SELECT coalesce(SELECT coalesce(invalid)))"))
.withMessageContaining("Column 'invalid' not found in any table")
}

@Test
def testPrimitiveMapType(): Unit = {
util.verifyExecPlan("SELECT MAP[b, 30, 10, a] FROM MyTable")
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