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From "Julian Hyde (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-1726) Query fails when table is not named
Date Mon, 17 Nov 2014 05:07:33 GMT

    [ https://issues.apache.org/jira/browse/DRILL-1726?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14214266#comment-14214266
] 

Julian Hyde commented on DRILL-1726:
------------------------------------

What Tomer wants is reasonable. I don't recall whether the SQL standard allows access to nested
collections, but it should be possible to come up with a reasonable semantics (e.g. look for
table aliases first, then look for columns; and also look for schemas, because the standard
does allow 'select myschema.emp.name from myschema.emp').

Can you log a Calcite feature request please.

> Query fails when table is not named
> -----------------------------------
>
>                 Key: DRILL-1726
>                 URL: https://issues.apache.org/jira/browse/DRILL-1726
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Tomer Shiran
>
> The first query failed, and the second succeeded. The only difference was that the field
was referred to with the table name b (ie, b.hours.Friday vs. hours.Friday). Both should work.
> {code}
> 0: jdbc:drill:zk=localhost:2181> SELECT name, hours.Friday FROM dfs.root.`Users/tshiran/Development/demo/data/yelp/business.json`
b LIMIT 1;
> Query failed: Failure while running sql.
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> 0: jdbc:drill:zk=localhost:2181> SELECT name, b.hours.Friday FROM dfs.root.`Users/tshiran/Development/demo/data/yelp/business.json`
b LIMIT 1;
> +------------+------------+
> |    name    |   EXPR$1   |
> +------------+------------+
> | Eric Goldberg, MD | {"close":"17:00","open":"08:00"} |
> +------------+------------+
> {code}



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