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Posted to dev@hive.apache.org by Sohan Jain <so...@fb.com> on 2011/06/16 05:13:24 UTC

Review Request: HIVE-2261: Add API to metastore for table filtering based on table properties

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/910/
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Review request for hive and Paul Yang.


Summary
-------

Create a function listTableNamesByFilter that returns a list of names for tables in a database that match a certain filter. The syntax of the filter is similar to the one created by HIVE-1609. You can filter the table list based on owner, retention, or table parameter key/values. The filtering takes place at the JDO level for efficiency/speed.  Added a QueryFilterType enum to easily add new filters and separate logic for filtering.  

Example filter statements include: 
filterType = QueryFilterType.OWNER; filter = "owner like ".*test_user.*"
filterType = QueryFilterType.RETENTION; filter = "retention < 90 and retention > 30"
filterType = QueryFilterType.PARAMS; filter = "numPartitions = \"2\" and  retention_days = \"30\""

The filter can currently parse string or integer values, where values interpreted as strings must be in quotes.


This addresses bug HIVE-2226.
    https://issues.apache.org/jira/browse/HIVE-2226


Diffs
-----

  trunk/metastore/if/hive_metastore.thrift 1135227 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 1135227 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java 1135227 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/IMetaStoreClient.java 1135227 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 1135227 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java 1135227 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java 1135227 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/Filter.g 1135227 
  trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestHiveMetaStore.java 1135227 

Diff: https://reviews.apache.org/r/910/diff


Testing
-------

Added test cases to TestHiveMetaStore


Thanks,

Sohan


Re: Review Request: HIVE-2226: Add API to metastore for table filtering based on table properties

Posted by Sohan Jain <so...@fb.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/910/
-----------------------------------------------------------

(Updated 2011-07-12 18:29:23.959204)


Review request for hive and Paul Yang.


Changes
-------

added exception for invalid key name


Summary
-------

Create a function listTableNamesByFilter that returns a list of names for tables in a database that match a certain filter. The syntax of the filter is similar to the one created by HIVE-1609. You can filter the table list based on owner, last access time, or table parameter key/values. The filtering takes place at the JDO level for efficiency/speed.  To create a new kind of table filter, add a constant to thrift.if and a branch in the if statement in generateJDOFilterOverTables() in ExpressionTree.

Example filter statements include: 
//translation: owner.matches(".*test.*") and lastAccessTime == 0
filter = Constants.HIVE_FILTER_FIELD_OWNER + 
    " like \".*test.*\" and " + 
    Constants.HIVE_FILTER_FIELD_LAST_ACCESS + " = 0";

//translation: owner = "test_user" and (parameters.get("retention") == "30" || parameters.get("retention") == 90)
filter = Constants.HIVE_FILTER_FIELD_OWNER + 
    " = \"test_user\" and (" + 
    Constants.HIVE_FILTER_FIELD_PARAMS + "retention = \"30\" or " + 
    Constants.HIVE_FILTER_FIELD_PARAMS + "retention = \"90\")"

The filter can currently parse string or integer values, where values interpreted as strings must be in quotes.  See the comments in IMetaStoreClient for more usage details/restrictions.


This addresses bug HIVE-2226.
    https://issues.apache.org/jira/browse/HIVE-2226


Diffs (updated)
-----

  trunk/metastore/if/hive_metastore.thrift 1145244 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 1145244 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java 1145244 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/IMetaStoreClient.java 1145244 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 1145244 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java 1145244 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java 1145244 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/Filter.g 1145244 
  trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestHiveMetaStore.java 1145244 

Diff: https://reviews.apache.org/r/910/diff


Testing
-------

Added test cases to TestHiveMetaStore


Thanks,

Sohan


Re: Review Request: HIVE-2226: Add API to metastore for table filtering based on table properties

Posted by Sohan Jain <so...@fb.com>.

> On 2011-06-30 22:48:12, Paul Yang wrote:
> > trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java, lines 1533-1537
> > <https://reviews.apache.org/r/910/diff/2/?file=21391#file21391line1533>
> >
> >     I don't think it's possible to create 2 tables with the same name. In which case, there shouldn't be a need for this check.

Ah, the comment there is a little misleading.  Some tables were getting returned multiple times if they matched multiple parts of an OR clause.  For example, in the unit test with the filter string: owner = "testOwner1" && (lastAccessTime = 30 || test_param_1 = "hi"), a table which had owner="testOwner1", lastAccessTime = 30, and test_param_1 = "hi" was returned twice by the query.


> On 2011-06-30 22:48:12, Paul Yang wrote:
> > trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java, lines 187-188
> > <https://reviews.apache.org/r/910/diff/2/?file=21393#file21393line187>
> >
> >     We should catch the case where the keyName is invalid

Will do


- Sohan


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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/910/#review928
-----------------------------------------------------------


On 2011-06-20 21:04:45, Sohan Jain wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/910/
> -----------------------------------------------------------
> 
> (Updated 2011-06-20 21:04:45)
> 
> 
> Review request for hive and Paul Yang.
> 
> 
> Summary
> -------
> 
> Create a function listTableNamesByFilter that returns a list of names for tables in a database that match a certain filter. The syntax of the filter is similar to the one created by HIVE-1609. You can filter the table list based on owner, last access time, or table parameter key/values. The filtering takes place at the JDO level for efficiency/speed.  To create a new kind of table filter, add a constant to thrift.if and a branch in the if statement in generateJDOFilterOverTables() in ExpressionTree.
> 
> Example filter statements include: 
> //translation: owner.matches(".*test.*") and lastAccessTime == 0
> filter = Constants.HIVE_FILTER_FIELD_OWNER + 
>     " like \".*test.*\" and " + 
>     Constants.HIVE_FILTER_FIELD_LAST_ACCESS + " = 0";
> 
> //translation: owner = "test_user" and (parameters.get("retention") == "30" || parameters.get("retention") == 90)
> filter = Constants.HIVE_FILTER_FIELD_OWNER + 
>     " = \"test_user\" and (" + 
>     Constants.HIVE_FILTER_FIELD_PARAMS + "retention = \"30\" or " + 
>     Constants.HIVE_FILTER_FIELD_PARAMS + "retention = \"90\")"
> 
> The filter can currently parse string or integer values, where values interpreted as strings must be in quotes.  See the comments in IMetaStoreClient for more usage details/restrictions.
> 
> 
> This addresses bug HIVE-2226.
>     https://issues.apache.org/jira/browse/HIVE-2226
> 
> 
> Diffs
> -----
> 
>   trunk/metastore/if/hive_metastore.thrift 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/IMetaStoreClient.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/Filter.g 1136751 
>   trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestHiveMetaStore.java 1136751 
> 
> Diff: https://reviews.apache.org/r/910/diff
> 
> 
> Testing
> -------
> 
> Added test cases to TestHiveMetaStore
> 
> 
> Thanks,
> 
> Sohan
> 
>


Re: Review Request: HIVE-2226: Add API to metastore for table filtering based on table properties

Posted by Paul Yang <py...@fb.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/910/#review928
-----------------------------------------------------------



trunk/metastore/if/hive_metastore.thrift
<https://reviews.apache.org/r/910/#comment2014>

    Using the form hive_filter_field_params__<parameter key> seems a little odd. Can't think of an easy way to handle this case though, so it should probably be okay.



trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java
<https://reviews.apache.org/r/910/#comment2003>

    I don't think it's possible to create 2 tables with the same name. In which case, there shouldn't be a need for this check.



trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java
<https://reviews.apache.org/r/910/#comment2005>

    We should catch the case where the keyName is invalid


- Paul


On 2011-06-20 21:04:45, Sohan Jain wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/910/
> -----------------------------------------------------------
> 
> (Updated 2011-06-20 21:04:45)
> 
> 
> Review request for hive and Paul Yang.
> 
> 
> Summary
> -------
> 
> Create a function listTableNamesByFilter that returns a list of names for tables in a database that match a certain filter. The syntax of the filter is similar to the one created by HIVE-1609. You can filter the table list based on owner, last access time, or table parameter key/values. The filtering takes place at the JDO level for efficiency/speed.  To create a new kind of table filter, add a constant to thrift.if and a branch in the if statement in generateJDOFilterOverTables() in ExpressionTree.
> 
> Example filter statements include: 
> //translation: owner.matches(".*test.*") and lastAccessTime == 0
> filter = Constants.HIVE_FILTER_FIELD_OWNER + 
>     " like \".*test.*\" and " + 
>     Constants.HIVE_FILTER_FIELD_LAST_ACCESS + " = 0";
> 
> //translation: owner = "test_user" and (parameters.get("retention") == "30" || parameters.get("retention") == 90)
> filter = Constants.HIVE_FILTER_FIELD_OWNER + 
>     " = \"test_user\" and (" + 
>     Constants.HIVE_FILTER_FIELD_PARAMS + "retention = \"30\" or " + 
>     Constants.HIVE_FILTER_FIELD_PARAMS + "retention = \"90\")"
> 
> The filter can currently parse string or integer values, where values interpreted as strings must be in quotes.  See the comments in IMetaStoreClient for more usage details/restrictions.
> 
> 
> This addresses bug HIVE-2226.
>     https://issues.apache.org/jira/browse/HIVE-2226
> 
> 
> Diffs
> -----
> 
>   trunk/metastore/if/hive_metastore.thrift 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/IMetaStoreClient.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java 1136751 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/Filter.g 1136751 
>   trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestHiveMetaStore.java 1136751 
> 
> Diff: https://reviews.apache.org/r/910/diff
> 
> 
> Testing
> -------
> 
> Added test cases to TestHiveMetaStore
> 
> 
> Thanks,
> 
> Sohan
> 
>


Re: Review Request: HIVE-2226: Add API to metastore for table filtering based on table properties

Posted by Sohan Jain <so...@fb.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/910/
-----------------------------------------------------------

(Updated 2011-06-20 21:04:45.477266)


Review request for hive and Paul Yang.


Changes
-------

- Removed the TableQueryFilterType enum. Instead, use constant names for filter keys to allow mixing filter types.


Summary (updated)
-------

Create a function listTableNamesByFilter that returns a list of names for tables in a database that match a certain filter. The syntax of the filter is similar to the one created by HIVE-1609. You can filter the table list based on owner, last access time, or table parameter key/values. The filtering takes place at the JDO level for efficiency/speed.  To create a new kind of table filter, add a constant to thrift.if and a branch in the if statement in generateJDOFilterOverTables() in ExpressionTree.

Example filter statements include: 
//translation: owner.matches(".*test.*") and lastAccessTime == 0
filter = Constants.HIVE_FILTER_FIELD_OWNER + 
    " like \".*test.*\" and " + 
    Constants.HIVE_FILTER_FIELD_LAST_ACCESS + " = 0";

//translation: owner = "test_user" and (parameters.get("retention") == "30" || parameters.get("retention") == 90)
filter = Constants.HIVE_FILTER_FIELD_OWNER + 
    " = \"test_user\" and (" + 
    Constants.HIVE_FILTER_FIELD_PARAMS + "retention = \"30\" or " + 
    Constants.HIVE_FILTER_FIELD_PARAMS + "retention = \"90\")"

The filter can currently parse string or integer values, where values interpreted as strings must be in quotes.  See the comments in IMetaStoreClient for more usage details/restrictions.


This addresses bug HIVE-2226.
    https://issues.apache.org/jira/browse/HIVE-2226


Diffs (updated)
-----

  trunk/metastore/if/hive_metastore.thrift 1136751 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 1136751 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java 1136751 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/IMetaStoreClient.java 1136751 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 1136751 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java 1136751 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java 1136751 
  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/Filter.g 1136751 
  trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestHiveMetaStore.java 1136751 

Diff: https://reviews.apache.org/r/910/diff


Testing
-------

Added test cases to TestHiveMetaStore


Thanks,

Sohan


Re: Review Request: HIVE-2261: Add API to metastore for table filtering based on table properties

Posted by Sohan Jain <so...@fb.com>.

> On 2011-06-17 00:13:20, Paul Yang wrote:
> > trunk/metastore/if/hive_metastore.thrift, line 46
> > <https://reviews.apache.org/r/910/diff/1/?file=21192#file21192line46>
> >
> >     Can we rename this to TableQueryFilterType so that it's clear that it's only used for tables?

Sure thing.


> On 2011-06-17 00:13:20, Paul Yang wrote:
> > trunk/metastore/if/hive_metastore.thrift, line 53
> > <https://reviews.apache.org/r/910/diff/1/?file=21192#file21192line53>
> >
> >     Where is this used?

Ah, that's not supposed to be there; I will remove it.


> On 2011-06-17 00:13:20, Paul Yang wrote:
> > trunk/metastore/if/hive_metastore.thrift, lines 267-270
> > <https://reviews.apache.org/r/910/diff/1/?file=21192#file21192line267>
> >
> >     Hive doesn't really use the retention field. Can you remove operations on this field from the rest of the diff?

Yep.


> On 2011-06-17 00:13:20, Paul Yang wrote:
> > trunk/metastore/if/hive_metastore.thrift, line 277
> > <https://reviews.apache.org/r/910/diff/1/?file=21192#file21192line277>
> >
> >     The interface is a little odd because we have to use names like 'owner' or 'retention' in addition to specifying the QueryFilterType. Maybe we should make the field that the QueryFilterType references be called 'field', so you'd have a filter like 'field = ".*test_user.*"' (for owner) or 'field > 90' (for retention)

Actually, with the current implementation, the field in the filter string can be arbitrarily named; the field name is parsed out by the antlr grammar and renamed according to TableQueryFilterType.  So if TableQueryFilterType is OWNER, then the following filters are equivalent: 
"owner like \".*test.\"", 
"key like \".*test.*\"", 
"field like \".*test.*\"",
etc.


> On 2011-06-17 00:13:20, Paul Yang wrote:
> > trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java, line 1203
> > <https://reviews.apache.org/r/910/diff/1/?file=21193#file21193line1203>
> >
> >     Style issue, { should be on same line as if

Will fix.


> On 2011-06-17 00:13:20, Paul Yang wrote:
> > trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java, lines 189-197
> > <https://reviews.apache.org/r/910/diff/1/?file=21198#file21198line189>
> >
> >     JDO-174 looks like it was fixed a while back - is this still an issue? > and < may be useful operators for the the parameters field. (e.g. if retention were stored there instead of the member field)

I agree that the > and < could be pretty useful operators here.  The issue was said to be resolved over 5 years ago, but surprisingly I think it just closed a few days ago 
https://issues.apache.org/jira/browse/JDO-174?page=com.atlassian.jira.plugin.system.issuetabpanels%3Aall-tabpanel#issue-tabs.  

In any case, comparing the result of a map.get() with anything other than equality throws the same error as the one described in JDO-174.  Trying to cast the result of map.get() to a String with ((String) this.parameters.get("keyName") > "value" throws the following seemingly unresolvable error:

org.datanucleus.store.exceptions.NoTableManagedException: Persistent class "java.lang.String" has no table in the database, but the operation requires it. Please check the specification of the MetaData for this class.


- Sohan


-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/910/#review855
-----------------------------------------------------------


On 2011-06-16 03:13:24, Sohan Jain wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/910/
> -----------------------------------------------------------
> 
> (Updated 2011-06-16 03:13:24)
> 
> 
> Review request for hive and Paul Yang.
> 
> 
> Summary
> -------
> 
> Create a function listTableNamesByFilter that returns a list of names for tables in a database that match a certain filter. The syntax of the filter is similar to the one created by HIVE-1609. You can filter the table list based on owner, retention, or table parameter key/values. The filtering takes place at the JDO level for efficiency/speed.  Added a QueryFilterType enum to easily add new filters and separate logic for filtering.  
> 
> Example filter statements include: 
> filterType = QueryFilterType.OWNER; filter = "owner like ".*test_user.*"
> filterType = QueryFilterType.RETENTION; filter = "retention < 90 and retention > 30"
> filterType = QueryFilterType.PARAMS; filter = "numPartitions = \"2\" and  retention_days = \"30\""
> 
> The filter can currently parse string or integer values, where values interpreted as strings must be in quotes.
> 
> 
> This addresses bug HIVE-2226.
>     https://issues.apache.org/jira/browse/HIVE-2226
> 
> 
> Diffs
> -----
> 
>   trunk/metastore/if/hive_metastore.thrift 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/IMetaStoreClient.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/Filter.g 1135227 
>   trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestHiveMetaStore.java 1135227 
> 
> Diff: https://reviews.apache.org/r/910/diff
> 
> 
> Testing
> -------
> 
> Added test cases to TestHiveMetaStore
> 
> 
> Thanks,
> 
> Sohan
> 
>


Re: Review Request: HIVE-2261: Add API to metastore for table filtering based on table properties

Posted by Paul Yang <py...@fb.com>.
-----------------------------------------------------------
This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/910/#review855
-----------------------------------------------------------



trunk/metastore/if/hive_metastore.thrift
<https://reviews.apache.org/r/910/#comment1868>

    Can we rename this to TableQueryFilterType so that it's clear that it's only used for tables?



trunk/metastore/if/hive_metastore.thrift
<https://reviews.apache.org/r/910/#comment1864>

    Where is this used?



trunk/metastore/if/hive_metastore.thrift
<https://reviews.apache.org/r/910/#comment1866>

    Hive doesn't really use the retention field. Can you remove operations on this field from the rest of the diff?



trunk/metastore/if/hive_metastore.thrift
<https://reviews.apache.org/r/910/#comment1869>

    The interface is a little odd because we have to use names like 'owner' or 'retention' in addition to specifying the QueryFilterType. Maybe we should make the field that the QueryFilterType references be called 'field', so you'd have a filter like 'field = ".*test_user.*"' (for owner) or 'field > 90' (for retention)



trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java
<https://reviews.apache.org/r/910/#comment1867>

    Style issue, { should be on same line as if



trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java
<https://reviews.apache.org/r/910/#comment1870>

    JDO-174 looks like it was fixed a while back - is this still an issue? > and < may be useful operators for the the parameters field. (e.g. if retention were stored there instead of the member field)


- Paul


On 2011-06-16 03:13:24, Sohan Jain wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/910/
> -----------------------------------------------------------
> 
> (Updated 2011-06-16 03:13:24)
> 
> 
> Review request for hive and Paul Yang.
> 
> 
> Summary
> -------
> 
> Create a function listTableNamesByFilter that returns a list of names for tables in a database that match a certain filter. The syntax of the filter is similar to the one created by HIVE-1609. You can filter the table list based on owner, retention, or table parameter key/values. The filtering takes place at the JDO level for efficiency/speed.  Added a QueryFilterType enum to easily add new filters and separate logic for filtering.  
> 
> Example filter statements include: 
> filterType = QueryFilterType.OWNER; filter = "owner like ".*test_user.*"
> filterType = QueryFilterType.RETENTION; filter = "retention < 90 and retention > 30"
> filterType = QueryFilterType.PARAMS; filter = "numPartitions = \"2\" and  retention_days = \"30\""
> 
> The filter can currently parse string or integer values, where values interpreted as strings must be in quotes.
> 
> 
> This addresses bug HIVE-2226.
>     https://issues.apache.org/jira/browse/HIVE-2226
> 
> 
> Diffs
> -----
> 
>   trunk/metastore/if/hive_metastore.thrift 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStore.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveMetaStoreClient.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/IMetaStoreClient.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/ObjectStore.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/RawStore.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/ExpressionTree.java 1135227 
>   trunk/metastore/src/java/org/apache/hadoop/hive/metastore/parser/Filter.g 1135227 
>   trunk/metastore/src/test/org/apache/hadoop/hive/metastore/TestHiveMetaStore.java 1135227 
> 
> Diff: https://reviews.apache.org/r/910/diff
> 
> 
> Testing
> -------
> 
> Added test cases to TestHiveMetaStore
> 
> 
> Thanks,
> 
> Sohan
> 
>