Examples of org.apache.pig.newplan.logical.visitor.ProjectStarExpander

Package org.apache.pig.newplan.logical.visitor

Examples of org.apache.pig.newplan.logical.visitor.ProjectStarExpander

org.apache.pig.newplan.logical.visitor.ProjectStarExpander
A visitor to walk operators that contain a nested plan and translate project( * ) operators to a list of projection operators, i.e., project( * ) -> project(0), project(1), ... project(n-2), project(n-1) If input schema is null, project(*) is not expanded. It also expands project range ( eg $1 .. $5). It won't expand project-range-to-end (eg $3 ..) if the input schema is null.

        op.setExpressionPlans( expressionPlans );
        op.setGroupType( gt );
        op.setInnerFlags( flags );
        alias = buildOp( loc, op, alias, inputAliases, partitioner );
        try {
            (new ProjectStarExpander(op.getPlan())).visit(op);
            (new ProjStarInUdfExpander(op.getPlan())).visit(op);
            new SchemaResetter(op.getPlan()).visit(op);
        } catch (FrontendException e) {
            throw new ParserValidationException( intStream, loc, e );
        }

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    String buildForeachOp(SourceLocation loc, LOForEach op, String alias, String inputAlias, LogicalPlan innerPlan)
    throws ParserValidationException {
        op.setInnerPlan( innerPlan );
        alias = buildOp( loc, op, alias, inputAlias, null );
        try {
            (new ProjectStarExpander(op.getPlan())).visit(op);
            (new ProjStarInUdfExpander(op.getPlan())).visit(op);
            new SchemaResetter(op.getPlan()).visit(op);
        } catch (FrontendException e) {
            throw new ParserValidationException( intStream, loc, e );
        }

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org.apache.pig.newplan.DependencyOrderWalker

org.apache.pig.newplan.DepthFirstWalker

org.apache.pig.newplan.logical.expression.LogicalExpressionPlan

org.apache.pig.newplan.logical.expression.ProjectExpression

org.apache.pig.newplan.logical.relational.LOGenerate

org.apache.pig.newplan.logical.relational.LogicalPlan

org.apache.pig.newplan.logical.relational.LogicalRelationalOperator

org.apache.pig.newplan.logical.relational.LogicalSchema

org.apache.pig.newplan.logical.relational.LogicalSchema.LogicalFieldSchema

org.apache.pig.newplan.logical.relational.LOInnerLoad

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