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https://issues.apache.org/jira/browse/HIVE-4742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Navis updated HIVE-4742:
------------------------
Fix Version/s: 0.12.0
> A useless CAST makes Hive fail to create a VIEW based on an UNION
> -----------------------------------------------------------------
>
> Key: HIVE-4742
> URL: https://issues.apache.org/jira/browse/HIVE-4742
> Project: Hive
> Issue Type: Bug
> Affects Versions: 0.11.0
> Reporter: Nicolas Lalevée
> Fix For: 0.12.0
>
>
> I create programmatically a script to create a view which is a union of all
> kind of event I have. To keep things simple, data are just blindly cast as
> STRING. It used to work with Hive 0.10, not anymore with 0.11.
> I tried to narrow down the simplest script. It seems that it only occurs if a
> least a view and an union is involved.
> Here is a failing script:
> {noformat}
> CREATE TABLE Event1 (d STRING, userid BIGINT, eventData1 STRING);
> CREATE TABLE Event2 (d STRING, userid BIGINT, eventData2 STRING);
> CREATE VIEW AllEventsTest
> AS SELECT * FROM (
> SELECT 'Event1' AS eventType, map('d', CAST(`d` AS STRING)) AS eventData
> FROM Event1
> UNION ALL
> SELECT 'Event2' AS eventType, map('d', CAST(`d` AS STRING)) AS eventData
> FROM Event2
> ) d;
> {noformat}
> There are warnings in the logs:
> {noformat}
> o.a.h.h.q.parse.TypeCheckProcFactory - Invalid type entry TOK_STRING=null
> o.a.h.h.q.parse.TypeCheckProcFactory - Invalid type entry TOK_STRING=null
> {noformat}
> And the error is:
> {noformat}
> FAILED: IllegalArgumentException replace op boundaries of
> <ReplaceOp@[@46,103:105='`d`',<26>,3:52]..[@46,103:105='`d`',<26>,3:52]:"`event1`.`d`">
> overlap with previous
> <ReplaceOp@[@44,98:101='CAST',<48>,3:47]..[@51,116:116=')',<276>,3:65]:"`event1`.`d`">
> 10:52:51.024 [scoopMapredScheduler_Worker-9 ] [ERROR]
> org.apache.hadoop.hive.ql.Driver - FAILED: IllegalArgumentException replace
> op boundaries of
> <ReplaceOp@[@46,103:105='`d`',<26>,3:52]..[@46,103:105='`d`',<26>,3:52]:"`event1`.`d`">
> overlap with previous
> <ReplaceOp@[@44,98:101='CAST',<48>,3:47]..[@51,116:116=')',<276>,3:65]:"`event1`.`d`">
> java.lang.IllegalArgumentException: replace op boundaries of
> <ReplaceOp@[@46,103:105='`d`',<26>,3:52]..[@46,103:105='`d`',<26>,3:52]:"`event1`.`d`">
> overlap with previous
> <ReplaceOp@[@44,98:101='CAST',<48>,3:47]..[@51,116:116=')',<276>,3:65]:"`event1`.`d`">
> at
> org.antlr.runtime.TokenRewriteStream.reduceToSingleOperationPerIndex(TokenRewriteStream.java:504)
> at
> org.antlr.runtime.TokenRewriteStream.toString(TokenRewriteStream.java:374)
> at
> org.antlr.runtime.TokenRewriteStream.toString(TokenRewriteStream.java:358)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.saveViewDefinition(SemanticAnalyzer.java:8781)
> at
> org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:8689)
> at
> org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:278)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:433)
> at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:337)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:902)
> at
> org.apache.hadoop.hive.service.HiveServer$HiveServerHandler.execute(HiveServer.java:198)
> at
> org.apache.hadoop.hive.jdbc.HiveStatement.executeQuery(HiveStatement.java:192)
> {noformat}
> Here is a working script:
> {noformat}
> CREATE TABLE Event1 (d STRING, userid BIGINT, eventData1 STRING);
> CREATE TABLE Event2 (d STRING, userid BIGINT, eventData2 STRING);
> CREATE VIEW AllEventsTest
> AS SELECT * FROM (
> SELECT 'Event1' AS eventType, map('d', `d`, 'userid', CAST(`userid` AS
> STRING)) AS eventData FROM Event1
> UNION ALL
> SELECT 'Event2' AS eventType, map('d', `d`, 'userid', CAST(`userid` AS
> STRING)) AS eventData FROM Event2
> ) d;
> {noformat}
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