@Override
public void visit(Select obj) {
visitNodes(obj.getFrom());
visitNodes(obj.getDerivedColumns());
visitNode(obj.getWhere());
visitNode(obj.getGroupBy());
visitNode(obj.getHaving());
visitNode(obj.getOrderBy());
visitNode(obj.getLimit());
if (this.doScanEvaluation) {
HashMap<String, String> options =
buildTableMetadata(
this.scanTable.getName(), this.scanTable.getColumns(), this.ef.getEncoding());
options.put(EvaluatorIterator.QUERYSTRING, SQLStringVisitor.getSQLString(obj.getWhere()));
IteratorSetting it = new IteratorSetting(1, EvaluatorIterator.class, options);
this.scanIterators.add(it);
}
if (this.selectColumns.size() < this.scanTable.getColumns().size()) {
HashMap<String, String> options =
buildTableMetadata(this.scanTable.getName(), this.selectColumns, this.ef.getEncoding());
IteratorSetting it =
new IteratorSetting(iteratorPriority++, LimitProjectionIterator.class, options);
this.scanIterators.add(it);
}
}
