[CALCITE-6283] Function ARRAY_APPEND with a NULL array argument crashes with NullPointerException

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 1.36.0
• Fix Version/s: 1.37.0
• Component/s: core
• Labels: pull-request-available
• Assignee: Mihai Budiu
• Reporter: Mihai Budiu
• Created: 27/Feb/24 01:06
• Updated: 06/May/24 22:19
• Resolved: 11/Mar/24 19:57

Description

The following test added to SqlOperatorTest:

f.checkNull("array_append(null, 2)");

causes Calcite to crash with the following stack trace:

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)

Issue Links

• links to: GitHub Pull Request #3706