> On May 3, 2016, 5:37 p.m., Ashutosh Chauhan wrote:
> > ql/src/test/queries/clientpositive/create_with_constraints.q, line 19
> > <https://reviews.apache.org/r/46671/diff/4/?file=1369598#file1369598line19>
> >
> >     Can you also add tests for describe formatted tblName colName; where 
> > colName is part of constraint. This should print out constraints relevant 
> > for that column.
> 
> Hari Sankar Sivarama Subramaniyan wrote:
>     I dont see a reason why this should be allowed. This will make the column 
> details look complicated unnecessarily (for example, when there are multiple 
> foreign keys associated with the table column). Just printing out the partial 
> constraint information wont be of much use to the end user. Also, constraints 
> are not an entity of the column. Rather if the end-user wants to see the 
> constraints, he/she should do it on a table level.

MySQL prints out what kind of constraint given column is a part of like 
PK,FK,unique etc. Ref: https://dev.mysql.com/doc/refman/5.0/en/explain.html 
Adding such an info for Hive will be useful.


> On May 3, 2016, 5:37 p.m., Ashutosh Chauhan wrote:
> > ql/src/test/results/clientpositive/create_with_constraints.q.out, line 137
> > <https://reviews.apache.org/r/46671/diff/4/?file=1369599#file1369599line137>
> >
> >     I think words Qualified and  child are redundant here.
> 
> Hari Sankar Sivarama Subramaniyan wrote:
>     IMO Child is not redundant since this is a Parent-Child relationship. 
> Agree 'Qualified' can be omitted.

I think child is also redundant because its a describe statement on a table, so 
its obvious that info printed is for columns belonging to this table.


> On May 3, 2016, 5:37 p.m., Ashutosh Chauhan wrote:
> > ql/src/test/queries/clientpositive/create_with_constraints.q, line 17
> > <https://reviews.apache.org/r/46671/diff/4/?file=1369598#file1369598line17>
> >
> >     describe formatted should also print constraints info. can you add a 
> > test case for that as well.
> >     Also for describe extended/formatted dbName.tblName;
> 
> Hari Sankar Sivarama Subramaniyan wrote:
>     This required a patch of changes in the MetaDataFormatUtils class. Will 
> upload in the next patch.

For dbName.tblName or for formatted? Either ways, its ok to do it in a 
follow-up where we also add support for show create table.


- Ashutosh


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On May 3, 2016, 3:46 a.m., Hari Sankar Sivarama Subramaniyan wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/46671/
> -----------------------------------------------------------
> 
> (Updated May 3, 2016, 3:46 a.m.)
> 
> 
> Review request for hive and Ashutosh Chauhan.
> 
> 
> Repository: hive-git
> 
> 
> Description
> -------
> 
> Describe extended table should show the primary keys/foreign keys associated 
> with the table
> 
> 
> Diffs
> -----
> 
>   itests/util/src/main/java/org/apache/hadoop/hive/ql/QTestUtil.java a6e8efa 
>   metastore/scripts/upgrade/derby/034-HIVE-13076.derby.sql b062c56 
>   metastore/scripts/upgrade/derby/hive-schema-2.1.0.derby.sql 1d00499 
>   metastore/scripts/upgrade/mssql/019-HIVE-13076.mssql.sql 00ddb73 
>   metastore/scripts/upgrade/mssql/hive-schema-2.1.0.mssql.sql 2d9cf76 
>   metastore/scripts/upgrade/mysql/034-HIVE-13076.mysql.sql c9a5e1d 
>   metastore/scripts/upgrade/mysql/hive-schema-2.1.0.mysql.sql 466e950 
>   metastore/scripts/upgrade/oracle/034-HIVE-13076.oracle.sql baf855c 
>   metastore/scripts/upgrade/oracle/hive-schema-2.1.0.oracle.sql f57e588 
>   metastore/scripts/upgrade/postgres/033-HIVE-13076.postgres.sql ec1fb48 
>   metastore/scripts/upgrade/postgres/hive-schema-2.1.0.postgres.sql e209489 
>   metastore/src/java/org/apache/hadoop/hive/metastore/MetaStoreDirectSql.java 
> 744512f 
>   metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 
> f651a13 
>   metastore/src/model/org/apache/hadoop/hive/metastore/model/MConstraint.java 
> 3806e28 
>   metastore/src/model/package.jdo b40df39 
>   ql/src/java/org/apache/hadoop/hive/ql/exec/DDLTask.java 39a1efc 
>   ql/src/java/org/apache/hadoop/hive/ql/metadata/ForeignKeyInfo.java 
> PRE-CREATION 
>   ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java 4d9c3d2 
>   ql/src/java/org/apache/hadoop/hive/ql/metadata/PrimaryKeyInfo.java 
> PRE-CREATION 
>   
> ql/src/java/org/apache/hadoop/hive/ql/metadata/formatting/JsonMetaDataFormatter.java
>  75c2dd9 
>   
> ql/src/java/org/apache/hadoop/hive/ql/metadata/formatting/MetaDataFormatter.java
>  55e1b3b 
>   
> ql/src/java/org/apache/hadoop/hive/ql/metadata/formatting/TextMetaDataFormatter.java
>  b5dc0b4 
>   ql/src/test/queries/clientpositive/create_with_constraints.q eef0c64 
>   ql/src/test/results/clientpositive/create_with_constraints.q.out 5cf8d83 
> 
> Diff: https://reviews.apache.org/r/46671/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Hari Sankar Sivarama Subramaniyan
> 
>

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