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From "Jacques Nadeau (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-1902) Exception when running query on json file and where clause containing cast to boolean
Date Sun, 28 Dec 2014 23:32:17 GMT

     [ https://issues.apache.org/jira/browse/DRILL-1902?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jacques Nadeau updated DRILL-1902:
----------------------------------
    Component/s: SQL Parser

> Exception when running query on json file and where clause containing cast to boolean
> -------------------------------------------------------------------------------------
>
>                 Key: DRILL-1902
>                 URL: https://issues.apache.org/jira/browse/DRILL-1902
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: SQL Parser
>    Affects Versions: 0.7.0
>            Reporter: Victoria Markman
>
> {code}  git.commit.id.abbrev=e3ab2c1 {code}
> -- JSON file
> {code}
> { "a1": 0, "b1": 0, "c1": "true" }
> { "a1": 0, "b1": 0, "c1": "false" }
> { "a1": 0, "b1": 0, "c1": "false" }
> { "a1": 1, "b1": 1, "c1": "true" }
> { "a1": 1, "b1": 1, "c1": "true" }
> {code}
> -- With JSON file
> {code}
> alter session set `planner.slice_target`= 1;
> select  a1,
>         b1,
>         count(*)
> from    `t.json`
> where   cast(c1 as boolean) and 1=1
> group by
>         a1,
>         b1;
> {code}
> Failure:
> {code}
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> 0: jdbc:drill:schema=dfs> select  a1,
> . . . . . . . . . . . . >         b1,
> . . . . . . . . . . . . >         count(*)
> . . . . . . . . . . . . > from    `t.json`
> . . . . . . . . . . . . > where   cast(c1 as boolean) and 1=1
> . . . . . . . . . . . . > group by
> . . . . . . . . . . . . >         a1,
> . . . . . . . . . . . . >         b1;
> Query failed: Query failed: Failure while trying to start remote fragment, Expression
has syntax error! line 1:28:no viable alternative at input 'BIT' [ 9d7f0746-15cd-41d6-bca2-c545356513e4
on atsqa4-133.qa.lab:31010 ]
> Error: exception while executing query: Failure while executing query. (state=,code=0)
> {code}
> Same works with parquet files:
> {code}
> 0: jdbc:drill:schema=dfs> create table test(a1, b1, c1) as select a1, b1, cast(c1
as boolean) from `t.json`;
> +------------+---------------------------+
> |  Fragment  | Number of records written |
> +------------+---------------------------+
> | 0_0        | 5                         |
> +------------+---------------------------+
> 1 row selected (0.216 seconds)
> 0: jdbc:drill:schema=dfs> select * from test;
> +------------+------------+------------+
> |     a1     |     b1     |     c1     |
> +------------+------------+------------+
> | 0          | 0          | true       |
> | 0          | 0          | false      |
> | 0          | 0          | false      |
> | 1          | 1          | true       |
> | 1          | 1          | true       |
> +------------+------------+------------+
> 5 rows selected (0.083 seconds)
> 0: jdbc:drill:schema=dfs> select  a1,
> . . . . . . . . . . . . >         b1,
> . . . . . . . . . . . . >         count(*)
> . . . . . . . . . . . . > from    test
> . . . . . . . . . . . . > where   c1 and 1=1
> . . . . . . . . . . . . > group by
> . . . . . . . . . . . . >         a1,
> . . . . . . . . . . . . >         b1;
> +------------+------------+------------+
> |     a1     |     b1     |   EXPR$2   |
> +------------+------------+------------+
> | 0          | 0          | 1          |
> | 1          | 1          | 2          |
> +------------+------------+------------+
> 2 rows selected (0.295 seconds)
> {code}
> Important note: I can't reproduce the same failure without setting
> {code} alter session set `planner.slice_target`= 1; {code}



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