我正在下面的外部蜂巢表，我将在稍后用于处理。
CREATE EXTERNAL TABLE hive_test_table(
cmp_dte DATE,
my_ind CHAR(1),
typ_desc VARCHAR(40),
def_typ_desc VARCHAR(60),
tt_ind CHAR(1),
nn_nm VARCHAR(80),
xzs_desc VARCHAR(60),
pqa_desc VARCHAR(40),
aac_cnt INT,
pqdd_cnt INT,
nnc_cnt INT,
ors_amt DECIMAL(18, 2),
rddd_amt DECIMAL(18, 2),
btdff_id BIGINT,
fil_tss STRING
)
PARTITIONED BY( chnldd VARCHAR(40))
STORED AS ORC
LOCATION '/test/locationn'
;
使用以下代码处理我想在猪中读取的数据
existing_data = LOAD 'hive_test_table' USING org.apache.hive.hcatalog.pig.HCatLoader() ;
低于错误，
ERROR org.apache.pig.tools.grunt.Grunt - org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to open iterator for alias existing_gold_paid_search_data. Backend error : Error converting read value to tuple
at org.apache.pig.PigServer.openIterator(PigServer.java:872)
at org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:774)
at org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:372)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:198)
at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:173)
at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69)
at org.apache.pig.Main.run(Main.java:541)
at org.apache.pig.Main.main(Main.java:156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.hadoop.util.RunJar.main(RunJar.java:212)
Caused by: org.apache.pig.backend.executionengine.ExecException: ERROR 6018: Error converting read value to tuple
at org.apache.hive.hcatalog.pig.HCatBaseLoader.getNext(HCatBaseLoader.java:76)
at org.apache.hive.hcatalog.pig.HCatLoader.getNext(HCatLoader.java:58)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.nextKeyValue(PigRecordReader.java:211)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.nextKeyValue(MapTask.java:533)
at org.apache.hadoop.mapreduce.task.MapContextImpl.nextKeyValue(MapContextImpl.java:80)
at org.apache.hadoop.mapreduce.lib.map.WrappedMapper$Context.nextKeyValue(WrappedMapper.java:91)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:167)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1557)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to org.apache.hadoop.hive.common.type.HiveVarchar
at org.apache.hive.hcatalog.pig.PigHCatUtil.extractPigObject(PigHCatUtil.java:413)
at org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:456)
at org.apache.hive.hcatalog.pig.PigHCatUtil.transformToTuple(PigHCatUtil.java:374)
at org.apache.hive.hcatalog.pig.HCatBaseLoader.getNext(HCatBaseLoader.java:64)
有人可以帮忙，如何解决这个问题？