@Override
public Void visitGroupByOperator(GroupByOperator op, Pair<LogicalVariable, LogicalVariable> pair)
throws AlgebricksException {
subst(pair.first, pair.second, op.getGroupByList());
subst(pair.first, pair.second, op.getDecorList());
for (ILogicalPlan p : op.getNestedPlans()) {
for (Mutable<ILogicalOperator> r : p.getRoots()) {
OperatorManipulationUtil.substituteVarRec(
(AbstractLogicalOperator) r.getValue(), pair.first, pair.second, goThroughNts, ctx);
}
}
substVarTypes(op, pair);
return null;
}
@Override
public Void visitGroupByOperator(GroupByOperator op, Void arg) throws AlgebricksException {
for (ILogicalPlan p : op.getNestedPlans()) {
for (Mutable<ILogicalOperator> r : p.getRoots()) {
VariableUtilities.getLiveVariables(r.getValue(), schemaVariables);
}
}
for (Pair<LogicalVariable, Mutable<ILogicalExpression>> p : op.getGroupByList()) {
if (p.first != null) {
schemaVariables.add(p.first);
}
}
for (Pair<LogicalVariable, Mutable<ILogicalExpression>> p : op.getDecorList()) {
if (p.first != null) {
schemaVariables.add(p.first);
} else {
ILogicalExpression e = p.second.getValue();
if (e.getExpressionTag() == LogicalExpressionTag.VARIABLE) {
schemaVariables.add(((VariableReferenceExpression) e).getVariableReference());
}
}
}
return null;
}
