[jira] [Created] (CALCITE-1439) Handling errors during constant reduction

["Julian Hyde (JIRA)" <ji...@apache.org>]

Julian Hyde created CALCITE-1439:
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             Summary: Handling errors during constant reduction
                 Key: CALCITE-1439
                 URL: https://issues.apache.org/jira/browse/CALCITE-1439
             Project: Calcite
          Issue Type: Bug
            Reporter: Julian Hyde
            Assignee: Julian Hyde


A literal is a constant, and so a cast of a literal is also a constant, but when we do constant reduction sometimes there are errors if the cast is not valid. For example, the query

{code}
values cast('' as integer)
{code}

gives {{ExceptionInInitializerError}} and, to make matters worse, the Avatica JDBC driver does not catch the exception (because it is a {{java.lang.Error}}) and wrap it as a {{java.sql.SQLException}} as it ought to.

Note that {{cast('1.2' as integer)}} is also invalid but {{cast(' -1 ' as integer)}} is valid.

This issue probably also applies to divide-by-zero and other exceptions evaluating scalar expressions.



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