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https://issues.apache.org/jira/browse/PIG-3418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13739890#comment-13739890
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Cheolsoo Park commented on PIG-3418:
------------------------------------
I will backport PIG-2507 to 0.11.2. Please let me know if anyone has
objections. Thanks!
> ; in constant breaks parsing
> ----------------------------
>
> Key: PIG-3418
> URL: https://issues.apache.org/jira/browse/PIG-3418
> Project: Pig
> Issue Type: Bug
> Components: parser
> Reporter: Sergey
> Priority: Blocker
> Fix For: 0.11
>
>
> Hi.
> 1. If you use ; in pig script it breaks parsing
> 2. It's impossible to pass ; as a value for parameter. Pig starts grunt and
> doesn't start script.
> Here is example:
> {code}
> A = LOAD 'myFile';
> B = FOREACH A GENERATE ( host == ';' ? 1 : 0); --line #5
> {code}
> Here is stacktrace:
> {code}
> Pig Stack Trace
> ---------------
> ERROR 1200: <file test.pig, line 5, column 0> mismatched character '<EOF>'
> expecting '''
> org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1000: Error during
> parsing. <file test.pig, line 5, column 0> mismatched character '<EOF>'
> expecting '''
> at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1608)
> at org.apache.pig.PigServer$Graph.registerQuery(PigServer.java:1547)
> at org.apache.pig.PigServer.registerQuery(PigServer.java:518)
> at
> org.apache.pig.tools.grunt.GruntParser.processPig(GruntParser.java:991)
> at
> org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:412)
> at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.j
> ava:194)
> at
> org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:170)
> at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:84)
> at org.apache.pig.Main.run(Main.java:604)
> at org.apache.pig.Main.main(Main.java:157)
> 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:616)
> at org.apache.hadoop.util.RunJar.main(RunJar.java:208)
> Caused by: Failed to parse: <file test.pig, line 5, column 0> mismatched
> character '<EOF>' expecting '''
> at
> org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:237)
> at
> org.apache.pig.parser.QueryParserDriver.parse(QueryParserDriver.java:177)
> at org.apache.pig.PigServer$Graph.parseQuery(PigServer.java:1600)
> ... 14 more
> {code}
> This also would not run.
> {code}
> pig -p param=; some_pig_script.pig
> {code}
> grunt would be launched.
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