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https://issues.apache.org/jira/browse/DRILL-884?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14018956#comment-14018956
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Norris Lee commented on DRILL-884:
----------------------------------
This seems to be an issue with the '*'. If the inner query explicitly states
the column, then it will run fine. For example,
{code}
Select `TableauSQL`.`address` AS `address` FROM (select `address` from
`dfs`.`default`.`/opt/drill/raw-files/click1.json`) `TableauSQL`
{code}
will execute while
{code}
Select `TableauSQL`.`address` AS `address` FROM (select * from
`dfs`.`default`.`/opt/drill/raw-files/click1.json`) `TableauSQL`
{code}
will not, with the "Column 'address' not found in table 'TableauSQL'" message.
> Query used to derive result set metadata for Tableau's "Custom SQL" does not
> run
> --------------------------------------------------------------------------------
>
> Key: DRILL-884
> URL: https://issues.apache.org/jira/browse/DRILL-884
> Project: Apache Drill
> Issue Type: Bug
> Reporter: George Chow
>
> The following style of query is used by Tableau to derive the metadata of a
> custom SQL:
> From Tableau's protocol server log:
> {code}
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: ODBCProtocol::ReadMetadataImpl:
> Attempting to read metadata from the prepared / executed query result set.
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: ODBCProtocolImpl::ReadMetadataImpl:
> Reading metadata using a prepared statement.
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: <QUERY protocol='0367b1f0'>
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: SELECT *
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: FROM (
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: select * from
> dfs.`default`.`/opt/drill/raw-files/click1.json`
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: ) `TableauSQL`
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: WHERE (0 = 1)
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: </QUERY>
> 2014-05-30 18:35:39.718 (-,-,-,-) 0ea0: ODBCProtocolImpl::ReadMetadataImpl:
> SQLPrepare failed. Reading metadata using an executed query.
> 2014-05-30 18:35:47.640 (-,-,-,-) 0ea0: ODBCProtocolImpl::ReadMetadataImpl:
> No columns were reported!
> {code}
> Extracting the query to run inside sqlline shows the problem:
> {code}
> 0: jdbc:drill:zk=localhost:5181> select * from (select * from
> dfs.`default`.`/opt/drill/raw-files/click1.json`) `TableauSQL` where (0=1);
> +--+
> | |
> +--+
> +--+
> No rows selected (9.059 seconds)
> {code}
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