[
https://issues.apache.org/jira/browse/DRILL-1876?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Victoria Markman closed DRILL-1876.
-----------------------------------
> Implement concatenation operator ( || )
> ---------------------------------------
>
> Key: DRILL-1876
> URL: https://issues.apache.org/jira/browse/DRILL-1876
> Project: Apache Drill
> Issue Type: Bug
> Components: Documentation
> Affects Versions: 0.7.0
> Reporter: Victoria Markman
> Fix For: 0.8.0
>
>
> It is documented, but it does not work at all (DRILL-779)
> Workaround exists: concat function
> As of version 0.7.0 (git.commit.id.abbrev=3b0ff5d)
> (1)
> 0: jdbc:drill:schema=dfs> select 'abc' || 'def' from cp.`tpch/nation.parquet`;
> Query failed: Query failed: Failure while running fragment.[
> dc4727ed-4ac3-42bb-a60b-f8f370dd4fcf on atsqa4-133.qa.lab:31010 ]
> [ dc4727ed-4ac3-42bb-a60b-f8f370dd4fcf on atsqa4-133.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
> (2)
> 0: jdbc:drill:schema=dfs> select n_name || 'xyz' from
> cp.`tpch/nation.parquet`;
> Query failed: Query failed: Unexpected exception during fragment
> initialization: Internal error: pre-condition failed:
> SqlTypeUtil.sameNamedType(argTypes[0], argTypes[1])
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
> (3)
> 0: jdbc:drill:schema=dfs> select cast(n_nationkey as varchar(10)) || n_name
> from cp.`tpch/nation.parquet`;
> Query failed: Query failed: Unexpected exception during fragment
> initialization: Internal error: pre-condition failed:
> SqlTypeUtil.sameNamedType(argTypes[0], argTypes[1])
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
> (4)
> 0: jdbc:drill:schema=dfs> select 'abc' || 'cde' from `test.json`;
> Query failed: Query failed: Failure while running fragment.[
> 01194cdf-746c-45db-ae4e-014590bfbffd on atsqa4-133.qa.lab:31010 ]
> [ 01194cdf-746c-45db-ae4e-014590bfbffd on atsqa4-133.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query.
> (state=,code=0)
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