[jira] [Created] (CALCITE-6283) array_append function with a NULL array argument crashes with a NullPointerException

["Mihai Budiu (Jira)" <ji...@apache.org>]

Mihai Budiu created CALCITE-6283:
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             Summary: array_append function with a NULL array argument crashes with a NullPointerException
                 Key: CALCITE-6283
                 URL: https://issues.apache.org/jira/browse/CALCITE-6283
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.36.0
            Reporter: Mihai Budiu


The following test added to SqlOperatorTest:

{code:java}
f.checkNull("array_append(null, 2)");
{code}

causes Calcite to crash with the following stack trace:

{code}
java.lang.NullPointerException: componentType is null for NULL

	at java.base/java.util.Objects.requireNonNull(Objects.java:347)
	at org.apache.calcite.sql.type.NonNullableAccessors.getComponentTypeOrThrow(NonNullableAccessors.java:52)
	at org.apache.calcite.sql.type.ArrayElementOperandTypeChecker.checkOperandTypes(ArrayElementOperandTypeChecker.java:49)
	at org.apache.calcite.sql.SqlOperator.checkOperandTypes(SqlOperator.java:761)
	at org.apache.calcite.sql.SqlOperator.validateOperands(SqlOperator.java:498)
	at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:347)
	at org.apache.calcite.sql.SqlFunction.deriveType(SqlFunction.java:231)
{code}



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