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https://issues.apache.org/jira/browse/DRILL-3664?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Volodymyr Vysotskyi updated DRILL-3664:
---------------------------------------
Fix Version/s: (was: Future)
1.17.0
> CAST integer zero , one to boolean false , true
> -----------------------------------------------
>
> Key: DRILL-3664
> URL: https://issues.apache.org/jira/browse/DRILL-3664
> Project: Apache Drill
> Issue Type: Bug
> Components: SQL Parser
> Affects Versions: 1.2.0
> Reporter: Khurram Faraaz
> Priority: Major
> Fix For: 1.17.0
>
>
> We should be able to cast (zero) 0 to false and (one) 1 to true, currently we
> report a parse error when an explicit cast is used in query.
> col7 is of type Boolean in the below input parquet file.
> {code}
> 0: jdbc:drill:schema=dfs.tmp> select col7 from FEWRWSPQQ_101 where col7 IN
> (cast(0 as boolean),cast(1 as boolean));
> Error: PARSE ERROR: From line 1, column 47 to line 1, column 64: Cast
> function cannot convert value of type INTEGER to type BOOLEAN
> [Error Id: d751945f-8a0f-4369-ae9e-c42504f6d978 on centos-04.qa.lab:31010]
> (state=,code=0)
> {code}
> Without explicit cast we see SchemaChangeException.
> {code}
> 0: jdbc:drill:schema=dfs.tmp> select col7 from FEWRWSPQQ_101 where col7 IN
> (0,1);
> Error: SYSTEM ERROR: SchemaChangeException: Failure while trying to
> materialize incoming schema. Errors:
>
> Error in expression at index -1. Error: Missing function implementation:
> [castINT(BIT-OPTIONAL)]. Full expression: --UNKNOWN EXPRESSION--.
> Error in expression at index -1. Error: Missing function implementation:
> [castINT(BIT-OPTIONAL)]. Full expression: --UNKNOWN EXPRESSION--..
> Fragment 0:0
> [Error Id: ecf51dae-62c5-40d7-b0f5-3b9bf9fd3377 on centos-04.qa.lab:31010]
> (state=,code=0)
> {code}
> Postgres results for the same query.
> {code}
> postgres=# select col7 from FEWRWSPQQ_101 where col7 IN (cast(0 as
> boolean),cast(1 as boolean));
> col7
> ------
> f
> t
> f
> t
> f
> t
> f
> t
> f
> t
> f
> t
> f
> t
> f
> t
> f
> t
> f
> t
> f
> t
> (22 rows)
> {code}
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