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From "Arvind Prabhakar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1176) 'create if not exists' fails for a table name with 'select' in it
Date Mon, 07 Jun 2010 05:14:28 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1176?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12876127#action_12876127
] 

Arvind Prabhakar commented on HIVE-1176:
----------------------------------------

I think the difference is more likely a bug in Mac OSX version of {{sed}}. Specifically, it
fails to process directives with escaped tab sequence characters and instead treats it as
unescaped. For example, the command to replace first occurrence of *b* in the string *abc*
with a tab character *\t* fails as shown below:

{code}
$ echo "abc" | /usr/bin/sed "s@b@\t@"
atc
{code}

Whereas this works fine with the GNU distribution of sed

{code}
$ echo "abc" | /opt/local/bin/sed "s@b@\t@"
a	c
{code}

> 'create if not exists' fails for a table name with 'select' in it
> -----------------------------------------------------------------
>
>                 Key: HIVE-1176
>                 URL: https://issues.apache.org/jira/browse/HIVE-1176
>             Project: Hadoop Hive
>          Issue Type: Bug
>          Components: Metastore, Query Processor
>            Reporter: Prasad Chakka
>            Assignee: Arvind Prabhakar
>         Attachments: HIVE-1176-1.patch, HIVE-1176.lib-files.tar.gz, HIVE-1176.patch
>
>
> hive> create table if not exists tmp_select(s string, c string, n int);
> org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:Got exception:
javax.jdo.JDOUserException JDOQL Single-String query should always start with SELECT)
>         at org.apache.hadoop.hive.ql.metadata.Hive.getTablesForDb(Hive.java:441)
>         at org.apache.hadoop.hive.ql.metadata.Hive.getTablesByPattern(Hive.java:423)
>         at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeCreateTable(SemanticAnalyzer.java:5538)
>         at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:5192)
>         at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:105)
>         at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:275)
>         at org.apache.hadoop.hive.ql.Driver.runCommand(Driver.java:320)
>         at org.apache.hadoop.hive.ql.Driver.run(Driver.java:312)
>         at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:123)
>         at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:181)
>         at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:287)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:597)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
> Caused by: MetaException(message:Got exception: javax.jdo.JDOUserException JDOQL Single-String
query should always start with SELECT)
>         at org.apache.hadoop.hive.metastore.MetaStoreUtils.logAndThrowMetaException(MetaStoreUtils.java:612)
>         at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.getTables(HiveMetaStoreClient.java:450)
>         at org.apache.hadoop.hive.ql.metadata.Hive.getTablesForDb(Hive.java:439)
>         ... 15 more

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