Package org.apache.pig.newplan.logical.relational

Examples of org.apache.pig.newplan.logical.relational.SchemaNotDefinedException

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    }

    // get a set of column indexes from a set of uids
    protected Set<Integer> getColumns(LogicalSchema schema, Set<Long> uids) throws FrontendException {
        if (schema == null) {
            throw new SchemaNotDefinedException("Schema is not defined.");
        }
       
        Set<Integer> cols = new HashSet<Integer>();
        Iterator<Long> iter = uids.iterator();
        while(iter.hasNext()) {
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            if (output.isEmpty()) {
                // to deal with load-store-load-store case
                LogicalSchema s = store.getSchema();
                if (s == null) {
                    throw new SchemaNotDefinedException("Schema for " + store.getName() + " is not defined.");
                }
                               
                for(int i=0; i<s.size(); i++) {
                    output.add(s.getField(i).uid);
                }                                               
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            Set<Long> input = new HashSet<Long>();
           
            // Every field is required
            LogicalSchema s = distinct.getSchema();
            if (s == null) {
                throw new SchemaNotDefinedException("Schema for " + distinct.getName() + " is not defined.");
            }
           
            for(int i=0; i<s.size(); i++) {
                input.add(s.getField(i).uid);
            }                                               
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                        uids.add(uid);
                    } else {
                        LogicalRelationalOperator ref = ((ProjectExpression)op).findReferent();
                        LogicalSchema s = ref.getSchema();
                        if (s == null) {
                            throw new SchemaNotDefinedException("Schema not defined for " + ref.getAlias());
                        }
                        for(LogicalFieldSchema f: s.getFields()) {
                            uids.add(f.uid);
                        }
                    }
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            List<Operator> ll = plan.getSuccessors(op);
            Set<Long> uids = new HashSet<Long>();
           
            LogicalSchema s = op.getSchema();
            if (s == null) {
                throw new SchemaNotDefinedException("Schema for " + op.getName() + " is not defined.");
            }
                           
            if (ll != null) {
                // if this is not sink, the output uids are union of input uids of its successors
                for(Operator succ: ll) {
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Related Classes of org.apache.pig.newplan.logical.relational.SchemaNotDefinedException

  • org.apache.pig.newplan.logical.rules.ColumnPruneHelper
  • org.apache.pig.newplan.logical.rules.ColumnPruneHelper$ColumnDependencyVisitor
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