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From "Pi Song (JIRA)" <j...@apache.org>
Subject [jira] Created: (PIG-278) Allow no alias in Dot schema definition in Dot LogicalPlanLoader
Date Mon, 23 Jun 2008 12:28:45 GMT
Allow no alias in Dot schema definition in Dot LogicalPlanLoader
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                 Key: PIG-278
                 URL: https://issues.apache.org/jira/browse/PIG-278
             Project: Pig
          Issue Type: Bug
            Reporter: Pi Song


Our schema parser doesn't allow "null" alias but we have to be able to do that in Dot test
files.
This is a work around by introducing "[NoAlias]" keyword in schema definition just for Dot
LogicalPlanLoader.

Sample:-
{noformat}
foreach [  key="20", type="LOForEach" , schema="[NoAlias] : long, [NoAlias] : byteArray" 
  ] ;
{noformat}

At runtime, [NoAlias] will be substituted by dummy column names before being sent to the parser.
Subsequently those names will be replaced by "null". There is no changes in the actual query
parser.

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