[HIVE-16877] NPE when issue query like alter table ... cascade onto non-partitioned table

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.2.1, 2.1.1
• Fix Version/s: 3.0.0
• Component/s: Query Processor
• Target Version/s: 2.2.0
• Assignee: Wang Haihua
• Reporter: Wang Haihua
• Created: 10/Jun/17 14:01
• Updated: 23/May/18 00:00
• Resolved: 26/Jun/17 15:05

Description

After HIVE-8839 in 1.1.0 support "alter table ... cascade" to cascade table changes to partitions as well. But NPE thrown when issue query like "alter table ... cascade" onto non-partitioned table

Sample Query:

create table test_cascade_npe (id int);
alter table test_cascade_npe add columns (name string ) cascade;

Exception stack:

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)

Issue Links

• relates to: HIVE-8839 Support "alter table .. add/replace columns cascade"