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https://issues.apache.org/jira/browse/DRILL-3126?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Chris Westin updated DRILL-3126:
--------------------------------
Assignee: Daniel Barclay (Drill)
> "SELECT `VARCHAR`('x') " yields internal ("SYSTEM ERROR") error
> ---------------------------------------------------------------
>
> Key: DRILL-3126
> URL: https://issues.apache.org/jira/browse/DRILL-3126
> Project: Apache Drill
> Issue Type: Bug
> Components: Functions - Drill
> Reporter: Daniel Barclay (Drill)
> Assignee: Daniel Barclay (Drill)
> Priority: Minor
>
> Trying to call an unknown function usually results in an error message like
> that in the following:
> {noformat}
> 0: jdbc:drill:zk=local> SELECT NoSuchFunction('x') FROM
> INFORMATION_SCHEMA.CATALOGS;
> May 17, 2015 9:15:13 PM org.apache.calcite.sql.validate.SqlValidatorException
> <init>
> SEVERE: org.apache.calcite.sql.validate.SqlValidatorException: No match found
> for function signature NoSuchFunction(<CHARACTER>)
> May 17, 2015 9:15:13 PM org.apache.calcite.runtime.CalciteException <init>
> SEVERE: org.apache.calcite.runtime.CalciteContextException: From line 1,
> column 8 to line 1, column 26: No match found for function signature
> NoSuchFunction(<CHARACTER>)
> Error: PARSE ERROR: From line 1, column 8 to line 1, column 26: No match
> found for function signature NoSuchFunction(<CHARACTER>)
> {noformat}
> However, trying to use a data type name in such a function call yields an
> internal error:
> {noformat}
> [Error Id: 0439d30c-8cdb-4eda-a253-17bf5afc468b on dev-linux2:31010]
> (state=,code=0)
> 0: jdbc:drill:zk=local> SELECT `VARCHAR`('x') FROM
> INFORMATION_SCHEMA.CATALOGS;
> Error: SYSTEM ERROR: org.apache.drill.exec.exception.SchemaChangeException:
> Failure while trying to materialize incoming schema. Errors:
>
> Error in expression at index -1. Error: Missing function implementation:
> [varchar(VARCHAR-REQUIRED)]. Full expression: --UNKNOWN EXPRESSION--..
> Fragment 0:0
> [Error Id: 3f20c811-a81f-41ad-9dc7-362456754eaf on dev-linux2:31010]
> (state=,code=0)
> 0: jdbc:drill:zk=local>
> {noformat}
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