Hi all,
I would like to do union all with a field that is hardcoded in the request.
INSERT OVERWRITE TABLE all_dictionaries_ext
SELECT name, id, category FROM dictionary
UNION ALL SELECT NAME, ID, "CAMPAIGN" FROM md_campaigns
Name type is String
Id type is int
Category type is string
When I run this command I had an error :
FAILED: SemanticException 4:47 Schema of both sides of union should match.
_u1-subquery2 does not have the field category. Error encountered near
token 'md_campaigns'
I supposed that the error is cause by the String "CAMPAIGN" which should
not have a type.
How can do this kind of union ?
The union all with 2 hard coded fields is ok.
INSERT OVERWRITE TABLE all_dictionaries_ext
SELECT NAME, ID, "CAMPAIGN" FROM md_campaigns
UNION ALL SELECT NAME, ID, "AD_SERVER" FROM md_ad_servers
UNION ALL SELECT NAME, ID, "AVERTISER" FROM md_advertisers
UNION ALL SELECT NAME, ID, "AGENCIES" FROM md_agencies
More debug info :
15/01/30 22:34:23 [main]: INFO parse.ParseDriver: Parsing command:
INSERT OVERWRITE TABLE all_dictionaries_ext
SELECT name, id, category FROM byoa_dictionary
UNION ALL SELECT NAME, ID, "CAMPAIGN" FROM md_campaigns
15/01/30 22:34:23 [main]: INFO parse.ParseDriver: Parse Completed
15/01/30 22:34:23 [main]: INFO log.PerfLogger: </PERFLOG method=parse
start=1422653663887 end=1422653663900 duration=13
from=org.apache.hadoop.hive.ql.Driver>
15/01/30 22:34:23 [main]: INFO log.PerfLogger: <PERFLOG
method=semanticAnalyze from=org.apache.hadoop.hive.ql.Driver>
15/01/30 22:34:23 [main]: INFO parse.SemanticAnalyzer: Starting Semantic
Analysis
15/01/30 22:34:23 [main]: INFO parse.SemanticAnalyzer: Completed phase 1 of
Semantic Analysis
15/01/30 22:34:23 [main]: INFO parse.SemanticAnalyzer: Get metadata for
source tables
15/01/30 22:34:23 [main]: INFO parse.SemanticAnalyzer: Get metadata for
subqueries
15/01/30 22:34:23 [main]: INFO parse.SemanticAnalyzer: Get metadata for
source tables
15/01/30 22:34:23 [main]: INFO parse.SemanticAnalyzer: Get metadata for
subqueries
15/01/30 22:34:24 [main]: INFO parse.SemanticAnalyzer: Get metadata for
destination tables
15/01/30 22:34:24 [main]: INFO parse.SemanticAnalyzer: Get metadata for
source tables
15/01/30 22:34:24 [main]: INFO parse.SemanticAnalyzer: Get metadata for
subqueries
15/01/30 22:34:24 [main]: INFO parse.SemanticAnalyzer: Get metadata for
destination tables
15/01/30 22:34:24 [main]: INFO parse.SemanticAnalyzer: Get metadata for
destination tables
15/01/30 22:34:24 [main]: INFO parse.SemanticAnalyzer: Completed getting
MetaData in Semantic Analysis
15/01/30 22:34:24 [main]: INFO parse.SemanticAnalyzer: Not invoking CBO
because the statement has too few joins
FAILED: SemanticException 4:47 Schema of both sides of union should match.
_u1-subquery2 does not have the field category. Error encountered near
token 'md_campaigns'
15/01/30 22:34:24 [main]: ERROR ql.Driver: FAILED: SemanticException 4:47
Schema of both sides of union should match. _u1-subquery2 does not have the
field category. Error encountered near token 'md_campaigns'
org.apache.hadoop.hive.ql.parse.SemanticException: 4:47 Schema of both
sides of union should match. _u1-subquery2 does not have the field
category. Error encountered near token 'md_campaigns'
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genUnionPlan(SemanticAnalyzer.java:9007)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:9600)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:9620)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.genPlan(SemanticAnalyzer.java:9607)
at
org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:10093)
at
org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:221)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:415)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:303)
at org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1067)
at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1129)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1004)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:994)
at org.apache.hadoop.hive.cli.CliDriver.processLocalCmd(CliDriver.java:247)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:199)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:410)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:345)
at org.apache.hadoop.hive.cli.CliDriver.executeDriver(CliDriver.java:733)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:677)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:616)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.run(RunJar.java:221)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
Regards,
--
Philippe Kernévez
