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https://issues.apache.org/jira/browse/PIG-4896?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15330257#comment-15330257
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Koji Noguchi commented on PIG-4896:
-----------------------------------
bq. Shouldn't this be not equals?
Thanks [~rohini].
This is fixed with my last {{pig-4896-v05.patch}}. When you have time, can you
take a (hopefully final) look?
> Param substitution ignored when redefined
> ------------------------------------------
>
> Key: PIG-4896
> URL: https://issues.apache.org/jira/browse/PIG-4896
> Project: Pig
> Issue Type: Bug
> Components: parser
> Reporter: Koji Noguchi
> Assignee: Koji Noguchi
> Priority: Minor
> Attachments: pig-4896-v01.patch, pig-4896-v02.patch,
> pig-4896-v03.patch, pig-4896-v04.patch, pig-4896-v05.patch
>
>
> After PIG-3359, the way we cache parameter substitution results changed a bit.
> {code:title=test.pig}
> A = load 'input.txt' ;
> %declare output '/tmp/abc';
> %declare actualoutput '$output.out';
> store A into '$actualoutput';
> %declare output '/tmp/def';
> %declare actualoutput '$output.out';
> store A into '$actualoutput';
> %declare number '1d';
> %declare shellout `bash -c "date -v-$number +'%Y%m%d_%H:%S_%s'; sleep 1" `
> store A into '$shellout';
> %declare shellout `bash -c "date -v-$number +'%Y%m%d_%H:%S_%s'; sleep 1" `
> store A into '$shellout';
> %declare number '2d';
> %declare shellout `bash -c "date -v-$number +'%Y%m%d_%H:%S_%s'; sleep 1" `
> store A into '$shellout';
> {code}
> Result from pig 0.11 (almost correct)
> {panel}
> A = load 'input.txt' ;
> store A into '/tmp/abc.out';
> store A into '/tmp/def.out';
> store A into '20160515_17:32_1463346752';
> store A into '20160515_17:33_1463346753'; {color:red}NO{color}
> store A into '20160514_17:34_1463260354';
> {panel}
> Result from trunk
> {panel}
> A = load 'input.txt' ;
> store A into '/tmp/abc.out';
> store A into '/tmp/abc.out'; {color:red} NO{color}
> store A into '20160515_15:10_1463338810';
> store A into '20160515_15:10_1463338810';
> store A into '20160515_15:10_1463338810'; {color:red}NO{color}
> {panel}
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