[jira] [Updated] (HIVE-15911) Creating a view based on another view throws an exception “FAILED: NullPointerException null”

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

     [ https://issues.apache.org/jira/browse/HIVE-15911?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

yangfang updated HIVE-15911:
----------------------------
        Assignee: yangfang
    Release Note: In the analyzeInternal method of the SemanticAnalyzer class, call setColumnAccessInfo method to get column information.
          Status: Patch Available  (was: Open)

In the doAuthorization example of the Driver:
        if (tbl.isView() && sem instanceof SemanticAnalyzer) {
          tab2Cols.put(tbl,         sem.getColumnAccessInfo().getTableToColumnAccessMap().get(tbl.getCompleteName()));
        }
sem.getColumnAccessInfo returns null, so the code throw exception "NullPointerException null". It needs to call setColumnAccessInfo in the above method.

> Creating a view based on another view throws an exception “FAILED: NullPointerException null”
> ---------------------------------------------------------------------------------------------
>
>                 Key: HIVE-15911
>                 URL: https://issues.apache.org/jira/browse/HIVE-15911
>             Project: Hive
>          Issue Type: Bug
>          Components: Views
>    Affects Versions: 2.1.1, 2.1.0
>         Environment: hive2.1.0
>            Reporter: yangfang
>            Assignee: yangfang
>
> when I create a new view based on another view I an exception “FAILED: NullPointerException null”:
> hive> create view view2(a,b) as select a, b from view1;
> FAILED: NullPointerException null
> hive> 
> The hive log show error stack：
> 2017-02-13T20:54:29,288 ERROR ql.Driver (:()) - FAILED: NullPointerException null
> java.lang.NullPointerException
>         at org.apache.hadoop.hive.ql.Driver.doAuthorization(Driver.java:710)
>         at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:474)
>         at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:331)
>         at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1170)
>         at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1265)
>         at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1092)
>         at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1080)
>         at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:232)
>         at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:183)
>         at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:399)
>         at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:776)
>         at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:714)
>         at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:641)
>         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.run(RunJar.java:221)
>         at org.apache.hadoop.util.RunJar.main(RunJar.java:136)



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