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https://issues.apache.org/jira/browse/PIG-3477?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13777138#comment-13777138
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Daniel Dai commented on PIG-3477:
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This is expected. Load is a statement which will run until Pig sees a store.
rmf is a command which runs immediately. Maybe we shall improve the document to
make it clear.
> *Nix commands do not execute sequentially
> -----------------------------------------
>
> Key: PIG-3477
> URL: https://issues.apache.org/jira/browse/PIG-3477
> Project: Pig
> Issue Type: Bug
> Reporter: Keith Dsouza
>
> Pig does not evaluate statements in sequence and evaluates the *nix statement
> (RMF, MV) encountered first and then processes the rest of the PIG statements
> which makes it impossible to sequentially use both PIG statements as well as
> Unix statements in a job.
> For example:
> I want to read data from A and A_new_data and store it in A, I use this
> LOAD A
> -- Read and merge A and A.new and create A_new_data
> RMF A
> STORE A_new_data into A
> However, RMF A runs first making the rest of my job useless. This is
> unexpected behavior
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