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https://issues.apache.org/jira/browse/HIVE-192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12896114#action_12896114
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Shyam Sundar Sarkar commented on HIVE-192:
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I converted a TIMESTAMP type into string type as part of createTable method in
DDLTask.java class. Can anyone suggest how do I retain TIMESTAMP type in the
Hive metadata repository and send string type only to db.createTable() method
so that SerDe takes it as string type only ? I want this for back and forth
conversions during SELECT, UPDATE etc. It seems that metadata is permanently
modified to string type in Hive.
Any suggestions will help.
-S. Sarkar
> Add TIMESTAMP column type
> -------------------------
>
> Key: HIVE-192
> URL: https://issues.apache.org/jira/browse/HIVE-192
> Project: Hadoop Hive
> Issue Type: New Feature
> Components: Query Processor
> Reporter: Johan Oskarsson
> Assignee: Shyam Sundar Sarkar
> Attachments: create_2.q.txt, TIMESTAMP_specification.txt
>
>
> create table something2 (test timestamp);
> ERROR: DDL specifying type timestamp which has not been defined
> java.lang.RuntimeException: specifying type timestamp which has not been
> defined
> at
> org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.FieldType(thrift_grammar.java:1879)
> at
> org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.Field(thrift_grammar.java:1545)
> at
> org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.FieldList(thrift_grammar.java:1501)
> at
> org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.Struct(thrift_grammar.java:1171)
> at
> org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.TypeDefinition(thrift_grammar.java:497)
> at
> org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.Definition(thrift_grammar.java:439)
> at
> org.apache.hadoop.hive.serde2.dynamic_type.thrift_grammar.Start(thrift_grammar.java:101)
> at
> org.apache.hadoop.hive.serde2.dynamic_type.DynamicSerDe.initialize(DynamicSerDe.java:97)
> at
> org.apache.hadoop.hive.metastore.MetaStoreUtils.getDeserializer(MetaStoreUtils.java:180)
> at org.apache.hadoop.hive.ql.metadata.Table.initSerDe(Table.java:141)
> at org.apache.hadoop.hive.ql.metadata.Hive.createTable(Hive.java:202)
> at org.apache.hadoop.hive.ql.exec.DDLTask.createTable(DDLTask.java:641)
> at org.apache.hadoop.hive.ql.exec.DDLTask.execute(DDLTask.java:98)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:215)
> at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:174)
> at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:207)
> at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:305)
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