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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-10034) Variable substitution broken when a query is contained in double quotes
Date Fri, 20 Mar 2015 17:53:38 GMT

    [ https://issues.apache.org/jira/browse/HIVE-10034?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14371735#comment-14371735
] 

Sergey Shelukhin commented on HIVE-10034:
-----------------------------------------

I suspect this is not a HIVE problem - $blah is bash syntax for variables, so bash is replacing
${a} in double-quoted string before command gets to hive.
Can you try to echo the same string with both types of quotes?

> Variable substitution broken when a query is contained in double quotes
> -----------------------------------------------------------------------
>
>                 Key: HIVE-10034
>                 URL: https://issues.apache.org/jira/browse/HIVE-10034
>             Project: Hive
>          Issue Type: Bug
>          Components: CLI
>    Affects Versions: 0.13.1
>         Environment: Ubuntu 12.04.5 LTS
>            Reporter: Jakub Kukul
>            Priority: Minor
>
> Variable substitution works fine when a SQL passed from the command line is a single
quoted string:
> {code}
> hive --hivevar a=b -e 'create table if not exists b (col int); describe ${a}'
> {code}
> , but when the query string is contained within double quotes:
> {code}
> hive --hivevar a=b -e "create table if not exists b (col int); describe ${a}"
> {code}
> it fails with the following stack:
> {code}
> NoViableAltException(83@[])
> 	at org.apache.hadoop.hive.ql.parse.HiveParser.descStatement(HiveParser.java:16225)
> 	at org.apache.hadoop.hive.ql.parse.HiveParser.ddlStatement(HiveParser.java:2198)
> 	at org.apache.hadoop.hive.ql.parse.HiveParser.execStatement(HiveParser.java:1392)
> 	at org.apache.hadoop.hive.ql.parse.HiveParser.statement(HiveParser.java:1030)
> 	at org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:199)
> 	at org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:166)
> 	at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:417)
> 	at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:335)
> 	at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1026)
> 	at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1091)
> 	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:962)
> 	at org.apache.hadoop.hive.ql.Driver.run(Driver.java:952)
> 	at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:269)
> 	at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:221)
> 	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:431)
> 	at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:367)
> 	at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:750)
> 	at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:694)
> 	at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:633)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
> FAILED: ParseException line 1:1 cannot recognize input near 'describe' '<EOF>'
'<EOF>' in describe statement
> {code}
> This behaviour is a bit confusing, since CLI accepts double quoted strings in other cases.



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