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https://issues.apache.org/jira/browse/HIVE-16877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16045548#comment-16045548
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Wang Haihua commented on HIVE-16877:
------------------------------------
Thanks for review in advance.
> NPE when issue query like alter ... cascade onto non-partitioned table
> -----------------------------------------------------------------------
>
> Key: HIVE-16877
> URL: https://issues.apache.org/jira/browse/HIVE-16877
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 1.2.1, 2.1.1
> Reporter: Wang Haihua
> Assignee: Wang Haihua
> Fix For: 2.2.0
>
> Attachments: HIVE-16877.1.patch
>
>
> NPE thrown when issue query like alter ... cascade onto non-partitioned table
> Sample Query:
> {code}
> create table test_cascade_npe (id int);
> alter table test_cascade_npe add columns (name string ) cascade;
> {code}
> Exception stack:
> {code}
> 2017-06-09T22:16:05,913 ERROR [main] ql.Driver: FAILED: NullPointerException
> null
> java.lang.NullPointerException
> at
> org.apache.hadoop.hive.metastore.Warehouse.makePartName(Warehouse.java:547)
> at
> org.apache.hadoop.hive.metastore.Warehouse.makePartName(Warehouse.java:489)
> at
> org.apache.hadoop.hive.ql.metadata.Partition.getName(Partition.java:198)
> at org.apache.hadoop.hive.ql.hooks.Entity.computeName(Entity.java:339)
> at org.apache.hadoop.hive.ql.hooks.Entity.<init>(Entity.java:208)
> at
> org.apache.hadoop.hive.ql.hooks.WriteEntity.<init>(WriteEntity.java:104)
> at
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.addInputsOutputsAlterTable(DDLSemanticAnalyzer.java:1496)
> at
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.addInputsOutputsAlterTable(DDLSemanticAnalyzer.java:1473)
> at
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.analyzeAlterTableModifyCols(DDLSemanticAnalyzer.java:2685)
> at
> org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer.analyzeInternal(DDLSemanticAnalyzer.java:284)
> at
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:250)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:474)
> at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1245)
> at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1387)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1174)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1164)
> 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)
> {code}
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