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Posted to dev@hive.apache.org by "Min Zhou (JIRA)" <ji...@apache.org> on 2009/06/30 05:15:47 UTC
[jira] Issue Comment Edited: (HIVE-577) return correct comment of a
column from ThriftHiveMetastore.Iface.get_fields
[ https://issues.apache.org/jira/browse/HIVE-577?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12725450#action_12725450 ]
Min Zhou edited comment on HIVE-577 at 6/29/09 8:15 PM:
--------------------------------------------------------
I guessed it's cumbersome to deal with custom tables from the api provided by hive currently.
DDL for table schema should changed from
struct{ type1 col1, type2 col2}
to some format like
struct{ struct{type1 col1, string comment1}, struct{type2 col2, string comment2}}
however, MetaStoreUtils.getDDLFromFieldSchema(structName, fieldSchemas) is not only for getSchema(table).
was (Author: coderplay):
I guessed it's cumbersome to deal with custom tables from current api provided by hive currently.
ddl for schema should changed from
struct{ type1 col1, type2 col2}
to some format like
struct{ struct{type1 col1, string comment1}, struct{type2 col2, string comment2}}
however, MetaStoreUtils.getDDLFromFieldSchema(structName, fieldSchemas) is not only for getSchema(table).
> return correct comment of a column from ThriftHiveMetastore.Iface.get_fields
> ----------------------------------------------------------------------------
>
> Key: HIVE-577
> URL: https://issues.apache.org/jira/browse/HIVE-577
> Project: Hadoop Hive
> Issue Type: Sub-task
> Reporter: Min Zhou
> Assignee: Min Zhou
> Attachments: HIVE-577.1.patch, HIVE-577.2.patch
>
>
> comment of each column hasnot been retrieved correct right now ,
> FieldSchema.getComment() will return a string "from derserializer".
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