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From "Pengcheng Xiong (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-11815) Correct the column/table names in subquery expression when create a view
Date Mon, 14 Sep 2015 22:57:45 GMT

     [ https://issues.apache.org/jira/browse/HIVE-11815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pengcheng Xiong updated HIVE-11815:
-----------------------------------
    Attachment: HIVE-11815.01.patch

> Correct the column/table names in subquery expression when create a view
> ------------------------------------------------------------------------
>
>                 Key: HIVE-11815
>                 URL: https://issues.apache.org/jira/browse/HIVE-11815
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Pengcheng Xiong
>            Assignee: Pengcheng Xiong
>
> Right now Hive does not quote column/table names in subquery expression when create a
view. For example
> {code}
> hive>
>     > create table tc (`@d` int);
> OK
> Time taken: 0.119 seconds
> hive> create view tcv as select * from tc b where exists (select a.`@d` from tc a
where b.`@d`=a.`@d`);
> OK
> Time taken: 0.075 seconds
> hive> describe extended tcv;
> OK
> @d                  	int
> Detailed Table Information	Table(tableName:tcv, dbName:default, owner:pxiong, createTime:1442250005,
lastAccessTime:0, retention:0, sd:StorageDescriptor(cols:[FieldSchema(name:@d, type:int, comment:null)],
location:null, inputFormat:org.apache.hadoop.mapred.SequenceFileInputFormat, outputFormat:org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat,
compressed:false, numBuckets:-1, serdeInfo:SerDeInfo(name:null, serializationLib:null, parameters:{}),
bucketCols:[], sortCols:[], parameters:{}, skewedInfo:SkewedInfo(skewedColNames:[], skewedColValues:[],
skewedColValueLocationMaps:{}), storedAsSubDirectories:false), partitionKeys:[], parameters:{transient_lastDdlTime=1442250005},
viewOriginalText:select * from tc b where exists (select a.@d from tc a where b.@d=a.@d),
viewExpandedText:select `b`.`@d` from `default`.`tc` `b` where exists (select a.@d from tc
a where b.@d=a.@d), tableType:VIRTUAL_VIEW)
> Time taken: 0.063 seconds, Fetched: 3 row(s)
> hive> select * from tcv;
> FAILED: SemanticException line 1:63 character '@' not supported here
> line 1:84 character '@' not supported here
> line 1:89 character '@' not supported here in definition of VIEW tcv [
> select `b`.`@d` from `default`.`tc` `b` where exists (select a.@d from tc a where b.@d=a.@d)
> ] used as tcv at Line 1:14
> {code}



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