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From "Cheolsoo Park (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-3500) Initial implementation of TezCompiler
Date Fri, 04 Oct 2013 00:29:43 GMT

     [ https://issues.apache.org/jira/browse/PIG-3500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Cheolsoo Park updated PIG-3500:
-------------------------------

    Attachment: PIG-3500-1.patch

Attached includes an initial version of TezCompiler with unit tests. Note that it query #3
is compiled into 3 Tez vertices (two input vertices and one join vertex) unlike MR plan.

The unit test can run with ant test clean -Dtestcase=TestTezCompiler.

> Initial implementation of TezCompiler
> -------------------------------------
>
>                 Key: PIG-3500
>                 URL: https://issues.apache.org/jira/browse/PIG-3500
>             Project: Pig
>          Issue Type: Sub-task
>          Components: tez
>    Affects Versions: tez-branch
>            Reporter: Cheolsoo Park
>            Assignee: Cheolsoo Park
>             Fix For: tez-branch
>
>         Attachments: PIG-3500-1.patch
>
>
> Implement TezCompiler that compiles physical plan into tez plan. To begin with, we can
implement the initial version that works for basic queries as follows:
> # Load-Filter-Store
> {code}
> a = load 'file:///tmp/input' as (x:int, y:int);
> b = filter a by x > 0;
> c = foreach b generate y;
> store c into 'file:///tmp/output';
> {code}
> # Load-Filter-GroupBy-Store
> {code}
> a = load 'file:///tmp/input' as (x:int, y:int);
> b = group a by x;
> c = foreach b generate group, a;
> store c into 'file:///tmp/output';
> {code}
> # Load1-Load2-Join-Store
> {code}
> a = load 'file:///tmp/input1' as (x:int, y:int);
> b = load 'file:///tmp/input2' as (x:int, z:int);
> c = join a by x, b by x;
> d = foreach c generate a::x as x, y, z;
> store d into 'file:///tmp/output';
> {code}



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