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https://issues.apache.org/jira/browse/PIG-158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12599552#action_12599552
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Pi Song commented on PIG-158:
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Then, what we encounter here is an arithmetic bag operation
{noformat}
*: Bag x Bag -> Bag
{noformat}
>From what I know, we never have a definition for this.
If you really want to support A.$0 * A.$1 as a syntactic sugar, we can wrap
them in another inner FOREACH...GENERATE but I suggest just leave it for the
moment.
PS. This also reminds me that we should also support this "quick projection" on
top level
{noformat}
A = LOAD 'fil1' ;
B = A.($0,$1) ;
STORE B ;
{noformat}
Have a good weekend, Santhosh :D
> Rework logical plan
> -------------------
>
> Key: PIG-158
> URL: https://issues.apache.org/jira/browse/PIG-158
> Project: Pig
> Issue Type: Sub-task
> Components: impl
> Reporter: Alan Gates
> Assignee: Alan Gates
> Attachments: logical_operators.patch, logical_operators_rev_1.patch,
> logical_operators_rev_2.patch, logical_operators_rev_3.patch,
> parser_changes.patch, parser_changes_v1.patch, parser_changes_v2.patch,
> parser_changes_v3.patch, parser_changes_v4.patch, ParserErrors.txt,
> visitorWalker.patch
>
>
> Rework the logical plan in line with
> http://wiki.apache.org/pig/PigExecutionModel
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