Oleksiy Sayankin created HIVE-21843:
---------------------------------------
Summary: UNION query with regular expressions works in Hive-2.1
and does not work in Hive-2.3
Key: HIVE-21843
URL: https://issues.apache.org/jira/browse/HIVE-21843
Project: Hive
Issue Type: Bug
Reporter: Oleksiy Sayankin
Assignee: Oleksiy Sayankin
*STEPS TO REPRODUCE:*
1. Create a table:
{code:java}CREATE TABLE t (a1 INT, a2 INT);
INSERT INTO TABLE t VALUES (1,1),(1,2),(2,1),(2,2);{code}
2. SET hive.support.quoted.identifiers to "none":
{code:java}SET hive.support.quoted.identifiers=none;{code}
3. Run the query:
{code:java}SELECT `(a1)?+.+` FROM t
UNION
SELECT `(a2)?+.+` FROM t;{code}
*ACTUAL RESULT:*
The query fails with an exception:
{code:java}2019-05-23T01:36:53,604 ERROR [9aa457a9-1c74-466e-abef-ec2f007117f3
main] ql.Driver: FAILED: SemanticException Line 0:-1 Invalid column reference
'`(a1)?+.+`'
org.apache.hadoop.hive.ql.parse.SemanticException: Line 0:-1 Invalid column
reference '`(a1)?+.+`'
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genAllExprNodeDesc(SemanticAnalyzer.java:11734)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genExprNodeDesc(SemanticAnalyzer.java:11674)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genExprNodeDesc(SemanticAnalyzer.java:11642)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genExprNodeDesc(SemanticAnalyzer.java:11620)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genGroupByPlanMapGroupByOperator(SemanticAnalyzer.java:5225)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genGroupByPlanMapAggrNoSkew(SemanticAnalyzer.java:6330)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genBodyPlan(SemanticAnalyzer.java:9659)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:10579)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:10457)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genOPTree(SemanticAnalyzer.java:11202)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.genOPTree(CalcitePlanner.java:481)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:11215)
at
org.apache.hadoop.hive.ql.parse.CalcitePlanner.analyzeInternal(CalcitePlanner.java:286)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:258)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:512)
at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1317)
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1457)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1237)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1227)
at
org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:239)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:187)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:409)
at
org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:836)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:774)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:697)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:692)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136){code}
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