[jira] [Created] (DRILL-6726) Drill should return a better error message when a view uses a table that has a mixed case schema

["Robert Hou (JIRA)" <ji...@apache.org>]

Robert Hou created DRILL-6726:
---------------------------------

             Summary: Drill should return a better error message when a view uses a table that has a mixed case schema
                 Key: DRILL-6726
                 URL: https://issues.apache.org/jira/browse/DRILL-6726
             Project: Apache Drill
          Issue Type: Bug
          Components: Execution - Relational Operators
    Affects Versions: 1.14.0
            Reporter: Robert Hou
            Assignee: Arina Ielchiieva
             Fix For: 1.15.0


Drill 1.14 changes schemas to be case-insensitive (DRILL-6492). If a view references a schema which has upper case letters, the view needs to be rebuilt. For example:
{noformat}
create or replace view `dfs.drillTestDirP1`.student_parquet_v as select * from `dfs.drillTestDirP1`.student;
{noformat}
If a query references this schema, Drill will return an exception:
{noformat}
java.sql.SQLException: VALIDATION ERROR: Failure while attempting to expand view. Requested schema drillTestDirP1 not available in schema dfs.
{noformat}
It would be helpful to users if the error message explains that these views need to be re-created.



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