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https://issues.apache.org/jira/browse/TAJO-1675?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14711497#comment-14711497
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ASF GitHub Bot commented on TAJO-1675:
--------------------------------------
Github user blrunner commented on a diff in the pull request:
https://github.com/apache/tajo/pull/653#discussion_r37882457
--- Diff:
tajo-catalog/tajo-catalog-common/src/main/proto/CatalogProtos.proto ---
@@ -247,13 +240,15 @@ message PartitionDescProto {
required string partitionName = 1;
repeated PartitionKeyProto partitionKeys = 2;
optional string path = 3;
- optional int32 id = 4;
+ optional int32 partition_id = 4;
--- End diff --
PartitionDescProto is used for various catalog API, for examples, output
parameter of getPartitionByPartitionName and getPartitionsByTableName and
getAllPartitions, input parameter of alterTable and addPartitions. In case of
output parameter, partition id always is not null. But in case of input
parameter, partition id will be null because CatalogClient can get partition
informs with table name and partition name.
> NPE when selecting data from information_schema.partition_keys
> --------------------------------------------------------------
>
> Key: TAJO-1675
> URL: https://issues.apache.org/jira/browse/TAJO-1675
> Project: Tajo
> Issue Type: Bug
> Components: Catalog
> Reporter: Jihoon Son
> Assignee: Jaehwa Jung
> Fix For: 0.11.0
>
>
> See the title.
> You can reproduce as follows.
> {noformat}
> default> create table partitioned_nation (n_name text, n_comment text)
> partition by column (n_nationkey int8, n_regionkey int8) ;
> OK
> default> insert into partitioned_nation select * from nation;
> default> \d partitioned_nation
> table name: default.partitioned_nation
> table uri: hdfs://localhost:7020/tajo/warehouse/default/partitioned_nation
> store type: CSV
> number of rows: 0
> volume: 0 B
> Options:
> 'text.delimiter'='|'
> schema:
> n_name TEXT
> n_comment TEXT
> Partitions:
> type:COLUMN
> columns::n_nationkey (INT8), n_regionkey (INT8)
> default> \c information_schema
> You are now connected to database "information_schema" as user "jihoonson".
> information_schema> select * from partition_keys;
> partition_id, column_name, partition_value
> -------------------------------
> ERROR: java.lang.NullPointerException
> java.sql.SQLException: java.lang.NullPointerException
> at
> org.apache.tajo.jdbc.TajoResultSetBase.next(TajoResultSetBase.java:717)
> at
> org.apache.tajo.cli.tsql.DefaultTajoCliOutputFormatter.printResult(DefaultTajoCliOutputFormatter.java:105)
> at
> org.apache.tajo.cli.tsql.TajoCli.localQueryCompleted(TajoCli.java:558)
> at org.apache.tajo.cli.tsql.TajoCli.executeQuery(TajoCli.java:532)
> at
> org.apache.tajo.cli.tsql.TajoCli.executeParsedResults(TajoCli.java:447)
> at org.apache.tajo.cli.tsql.TajoCli.runShell(TajoCli.java:419)
> at org.apache.tajo.cli.tsql.TajoCli.main(TajoCli.java:692)
> Caused by: java.io.IOException: java.lang.NullPointerException
> at org.apache.tajo.jdbc.FetchResultSet.nextTuple(FetchResultSet.java:80)
> at
> org.apache.tajo.jdbc.TajoResultSetBase.next(TajoResultSetBase.java:711)
> ... 6 more
> Caused by: com.google.protobuf.ServiceException:
> java.lang.NullPointerException
> at
> org.apache.tajo.client.QueryClientImpl.fetchNextQueryResult(QueryClientImpl.java:360)
> at
> org.apache.tajo.client.TajoClientImpl.fetchNextQueryResult(TajoClientImpl.java:134)
> at org.apache.tajo.jdbc.FetchResultSet.nextTuple(FetchResultSet.java:62)
> ... 7 more
> {noformat}
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