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ASF GitHub Bot commented on DRILL-4459: --------------------------------------- GitHub user vdiravka opened a pull request: https://github.com/apache/drill/pull/431 DRILL-4459: SchemaChangeException while querying hive json table - added Var16Char for comparison drill functions; - added UTest for hive GET_JSON_OBJECT UDF. You can merge this pull request into a Git repository by running: $ git pull https://github.com/vdiravka/drill DRILL-4459 Alternatively you can review and apply these changes as the patch at: https://github.com/apache/drill/pull/431.patch To close this pull request, make a commit to your master/trunk branch with (at least) the following in the commit message: This closes #431 ---- commit 71802544886d024fde3c22e6a507a4c7ca537148 Author: Vitalii Diravka <vitalii.dira...@gmail.com> Date: 2016-03-10T14:52:28Z DRILL-4459: SchemaChangeException while querying hive json table - added Var16Char for comparison drill functions; - added UTest for hive GET_JSON_OBJECT UDF. ---- > SchemaChangeException while querying hive json table > ---------------------------------------------------- > > Key: DRILL-4459 > URL: https://issues.apache.org/jira/browse/DRILL-4459 > Project: Apache Drill > Issue Type: Bug > Components: Functions - Drill, Functions - Hive > Affects Versions: 1.4.0 > Environment: MapR-Drill 1.4.0 > Hive-1.2.0 > Reporter: Vitalii Diravka > Assignee: Vitalii Diravka > Fix For: 1.7.0 > > > getting the SchemaChangeException while querying json documents stored in > hive table. > {noformat} > Error: SYSTEM ERROR: SchemaChangeException: Failure while trying to > materialize incoming schema. Errors: > > Error in expression at index -1. Error: Missing function implementation: > [castBIT(VAR16CHAR-OPTIONAL)]. Full expression: --UNKNOWN EXPRESSION--.. > {noformat} > minimum reproduce > {noformat} > created sample json documents using the attached script(randomdata.sh) > hive>create table simplejson(json string); > hive>load data local inpath '/tmp/simple.json' into table simplejson; > now query it through Drill. > Drill Version > select * from sys.version; > +-----------+----------------+-------------+-------------+------------+ > | commit_id | commit_message | commit_time | build_email | build_time | > +-----------+----------------+-------------+-------------+------------+ > | eafe0a245a0d4c0234bfbead10c6b2d7c8ef413d | DRILL-3901: Don't do early > expansion of directory in the non-metadata-cache case because it already > happens during ParquetGroupScan's metadata gathering operation. | 07.10.2015 > @ 17:12:57 UTC | Unknown | 07.10.2015 @ 17:36:16 UTC | > +-----------+----------------+-------------+-------------+------------+ > 0: jdbc:drill:zk=> select * from hive.`default`.simplejson where > GET_JSON_OBJECT(simplejson.json, '$.DocId') = 'DocId2759947' limit 1; > Error: SYSTEM ERROR: SchemaChangeException: Failure while trying to > materialize incoming schema. Errors: > > Error in expression at index -1. Error: Missing function implementation: > [castBIT(VAR16CHAR-OPTIONAL)]. Full expression: --UNKNOWN EXPRESSION--.. > Fragment 1:1 > [Error Id: 74f054a8-6f1d-4ddd-9064-3939fcc82647 on ip-10-0-0-233:31010] > (state=,code=0) > {noformat} -- This message was sent by Atlassian JIRA (v6.3.4#6332)