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Posted to issues@hive.apache.org by "Naveen Gangam (Jira)" <ji...@apache.org> on 2020/06/02 00:26:00 UTC
[jira] [Commented] (HIVE-18735) Create table like loses
transactional attribute
[ https://issues.apache.org/jira/browse/HIVE-18735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17121428#comment-17121428 ]
Naveen Gangam commented on HIVE-18735:
--------------------------------------
[~lpinter] I am trying to understand the behavior for another issue for CTLT. Is the metadata for the new table meant to be a replica of the source table in terms of table type, table properties etc? (I understand the location would be different) or is there a syntax where the source and target table types can be different?
is something like this "create external table ext like mgd_table" supported where mgd_table is a MANAGED_TABLE?
> Create table like loses transactional attribute
> -----------------------------------------------
>
> Key: HIVE-18735
> URL: https://issues.apache.org/jira/browse/HIVE-18735
> Project: Hive
> Issue Type: Bug
> Components: Transactions
> Affects Versions: 2.0.0
> Reporter: Eugene Koifman
> Assignee: László Pintér
> Priority: Major
> Fix For: 4.0.0
>
> Attachments: HIVE-18735.01.patch, HIVE-18735.02.patch, HIVE-18735.03.patch, HIVE-18735.04.patch, HIVE-18735.05.patch, HIVE-18735.06.patch
>
>
> {noformat}
> create table T1(a int, b int) clustered by (a) into 2 buckets stored as orc TBLPROPERTIES ('transactional'='true')";
> create table T like T1;
> show create table T ;
> CREATE TABLE `T`(
> `a` int,
> `b` int)
> CLUSTERED BY (
> a)
> INTO 2 BUCKETS
> ROW FORMAT SERDE
> 'org.apache.hadoop.hive.ql.io.orc.OrcSerde'
> STORED AS INPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.orc.OrcInputFormat'
> OUTPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat'
> LOCATION
> 'file:/Users/ekoifman/IdeaProjects/hive/ql/target/tmp/org.apache.hadoop.hive.ql.TestTxnCommands-1518813536099/warehouse/t'
> TBLPROPERTIES (
> 'transient_lastDdlTime'='1518813564')
> {noformat}
> Specifying props explicitly does work
> {noformat}
> create table T1(a int, b int) clustered by (a) into 2 buckets stored as orc TBLPROPERTIES ('transactional'='true')";
> create table T like T1 TBLPROPERTIES ('transactional'='true');
> show create table T ;
> CREATE TABLE `T`(
> `a` int,
> `b` int)
> CLUSTERED BY (
> a)
> INTO 2 BUCKETS
> ROW FORMAT SERDE
> 'org.apache.hadoop.hive.ql.io.orc.OrcSerde'
> STORED AS INPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.orc.OrcInputFormat'
> OUTPUTFORMAT
> 'org.apache.hadoop.hive.ql.io.orc.OrcOutputFormat'
> LOCATION
> 'file:/Users/ekoifman/IdeaProjects/hive/ql/target/tmp/org.apache.hadoop.hive.ql.TestTxnCommands-1518814098564/warehouse/t'
> TBLPROPERTIES (
> 'transactional'='true',
> 'transactional_properties'='default',
> 'transient_lastDdlTime'='1518814111')
> {noformat}
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