[jira] [Updated] (DRILL-4506) Allow substitution variables in SQL scripts

["Ian Hellstrom (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/DRILL-4506?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ian Hellstrom updated DRILL-4506:
---------------------------------
    Issue Type: Wish  (was: Bug)

> Allow substitution variables in SQL scripts
> -------------------------------------------
>
>                 Key: DRILL-4506
>                 URL: https://issues.apache.org/jira/browse/DRILL-4506
>             Project: Apache Drill
>          Issue Type: Wish
>          Components: SQL Parser
>            Reporter: Ian Hellstrom
>              Labels: features
>
> It would be great if substitution variables could be created à la SQL*Plus in scripts. This would be especially helpful when objects need to be (re-)created from scratch (i.e. in testing), and they share e.g. workspaces, which have to be hard-coded otherwise.
> The following is a rough idea (based on SQL*Plus syntax):
> {code}
> IN_LOCATION=hdfs.project
> OUT_LOCATION=hdfs.storage
> CREATE VIEW &OUT_LOCATION.view_name AS
> SELECT * FROM &IN_LOCATION.table_name;
> {code}
> For a first implementation, it would be best to have simply substitution variables and not allow computations to be done, although it is conceivable that that would be a second step.



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