[jira] [Created] (CALCITE-6911) SqlItemOperator.inferReturnType throws AssertionError for out of bounds accesses

[Mihai Budiu (Jira)]

Mihai Budiu created CALCITE-6911:
------------------------------------

             Summary: SqlItemOperator.inferReturnType throws AssertionError for 
out of bounds accesses
                 Key: CALCITE-6911
                 URL: https://issues.apache.org/jira/browse/CALCITE-6911
             Project: Calcite
          Issue Type: Bug
          Components: core
    Affects Versions: 1.39.0
            Reporter: Mihai Budiu


Clearly, AssertionError is the wrong error to report for something that is a 
normal validation error.

Example: 

{code:sql}
select x[2] from (select ROW(1) as x)
{code}

Stack trace:
{code}
        at 
org.apache.calcite.sql.fun.SqlItemOperator.inferReturnType(SqlItemOperator.java:179)
        at 
org.apache.calcite.sql.SqlOperator.validateOperands(SqlOperator.java:531)
        at org.apache.calcite.sql.SqlOperator.deriveType(SqlOperator.java:630)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:7092)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl$DeriveTypeVisitor.visit(SqlValidatorImpl.java:7079)
        at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:168)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.deriveTypeImpl(SqlValidatorImpl.java:2028)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.deriveType(SqlValidatorImpl.java:2015)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:507)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:5140)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:4134)
        at 
org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:62)
        at 
org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:96)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1208)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1179)
        at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:282)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1145)
        at 
org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:851)
        at 
org.apache.calcite.sql.test.AbstractSqlTester.assertExceptionIsThrown(AbstractSqlTester.java:106)
        at 
org.apache.calcite.test.SqlValidatorFixture.fails(SqlValidatorFixture.java:202)

{code}



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