Pig try to interpret UDF as Macro
---------------------------------
Key: PIG-1873
URL: https://issues.apache.org/jira/browse/PIG-1873
Project: Pig
Issue Type: Bug
Components: impl
Affects Versions: 0.9.0
Reporter: Daniel Dai
Assignee: Richard Ding
Fix For: 0.9.0
The following script fail:
{code}
A = load '1.txt';
B = group A by $0;
C = foreach B {
C1 = filter A by $0 > -1;
C2 = distinct C1;
C3 = distinct A;
C4 = org.apache.pig.test.utils.Identity(*);
C5 = COUNT(C2);
C6 = SUM(C2.$1);
C7 = org.apache.pig.test.TestEvalPipeline\$TitleNGrams(C3);
C8 = MAX(C3.$1);
generate (int)group, C4, C5, C6, C7, C8, C2;
};
dump C;
{code}
Stack:
ERROR 2999: Unexpected internal error. Pig macro 'COUNT' must be defined before
being invoked
java.lang.RuntimeException: Pig macro 'COUNT' must be defined before being
invoked
at org.apache.pig.parser.MacroExpansion.mINLINE(MacroExpansion.java:509)
at
org.apache.pig.parser.MacroExpansion.mTokens(MacroExpansion.java:1240)
at
org.apache.pig.parser.MacroExpansion.nextToken(MacroExpansion.java:68)
at org.apache.pig.parser.ParserUtil.expandMacros(ParserUtil.java:53)
at
org.apache.pig.parser.ParserUtil.getExpandedMacroAsBufferedReader(ParserUtil.java:89)
at org.apache.pig.Main.run(Main.java:505)
at org.apache.pig.Main.main(Main.java:108)
Seems Pig try to interpret UDF COUNT as a Macro.
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