private static BoundQuery CreateBoundQuery(BoundExpression expression)
{
var factory = new ValueSlotFactory();
var valueSlot = new ValueSlot(factory, @"result", 0, expression.Type);
var computedValue = new BoundComputedValue(expression, valueSlot);
var constantRelation = new BoundConstantRelation();
var computeRelation = new BoundComputeRelation(constantRelation, new[] { computedValue });
var projectRelation = new BoundProjectRelation(computeRelation, new [] { valueSlot });
var columnSymbol = new QueryColumnInstanceSymbol(valueSlot.Name, valueSlot);
return(new BoundQuery(projectRelation, new[] { columnSymbol }));
}
internal TableInstanceSymbol(string name, TableSymbol table, ValueSlotFactory valueFactory)
: this(name, table, (ti, c) => valueFactory.CreateNamed($"{ti.Name}.{c.Name}", c.Type))
{
}