problems_pig

• 1 error1
• 2 error2
• 3 error3
• 4
• 5

1 error1

Error log:
Failed to parse: Pig script failed to parse:
<file /x/home/pp_dt_cmpln_batch/test/CRR_rollupreg_extract.pig, line 20, column 46> Failed to generate logical plan. Nested exception: org.apache.pig.backend.executionengine.ExecException: ERROR 1070: Could not resolve concat using imports: [, java.lang., org.apache.pig.builtin., org.apache.pig.impl.builtin.]

Reason: please refer to the following pig statement. pig's concat function should be uppercase, should be CONTACT().
data = FOREACH data GENERATE RollupregExtract(concat(payload, ${logical_date}));

2 error2

Error log:
Caused by: org.apache.pig.impl.logicalLayer.validators.TypeCheckerException: ERROR 1045:
<file /x/home/pp_dt_cmpln_batch/test/CRR_rollupreg_extract.pig, line 20, column 46> Could not infer the matching function for org.apache.pig.builtin.CONCAT as multiple or none of them fit. Please use an explicit cast.

Reason: pls refer to the incorrect grammer below:
data = FOREACH data GENERATE RollupregExtract(CONCAT(field1, ${logical_date}));
the ${logical_date} should be cast in to chararray implicitly.

Correct grammar:
data = FOREACH data GENERATE RollupregExtract(CONCAT(payload, (chararray)${logical_date}));
data = FOREACH data GENERATE RollupregExtract(CONCAT(payload, 'logical_date:${logical_date}'));

3 error3

ERROR LOG3 :
java.lang.Exception: org.apache.pig.backend.executionengine.ExecException: ERROR 0: Exception while executing [POUserFunc (Name: POUserFunc(com.paypal.rollupreg.RollupregExtract)[chararray] - scope-8 Operator Key: scope-8) children: null at []]: java.time.format.DateTimeParseException: Text '' could not be parsed at index 0
Reason:
The grammer(data = FOREACH data GENERATE RollupregExtract(CONCAT(payload, 'logical_date:${logical_date}'))

标签：problems,logical,Pig,apache,date,pig,data
来源： https://www.cnblogs.com/mediocreWorld/p/15188958.html