public override WTableReference ToTableReference()
{
List <WScalarExpression> parameters = new List <WScalarExpression>();
List <WSelectQueryBlock> queryBlocks = new List <WSelectQueryBlock>();
//Must toSelectQueryBlock before toCompose1 of variableList in order to populate needed columns
foreach (var byContext in this.ByContexts)
{
queryBlocks.Add(byContext.ToSelectQueryBlock(true));
}
for (int index = 0; index < this.StepList.Count; index++)
{
GremlinVariable step = this.StepList[index];
if (step is GremlinContextVariable && !((step is GremlinRepeatContextVariable) ||
(step is GremlinUntilContextVariable) ||
(step is GremlinEmitContextVariable)))
{
parameters.AddRange(this.AnnotatedLabels[index].Select(SqlUtil.GetValueExpr));
continue;
}
HashSet <string> composedProperties = new HashSet <string>(this.ProjectedProperties);
foreach (var labelproperty in this.LabelPropertyList)
{
if (!composedProperties.Contains(labelproperty.Item1) &&
(this.AnnotatedLabels[index].Contains(labelproperty.Item1) ||
this.InheritedLabels[index].Contains(labelproperty.Item1)))
{
composedProperties.Add(labelproperty.Item2);
}
}
if (composedProperties.Count > this.ProjectedProperties.Count)
{
composedProperties.RemoveWhere(s => String.IsNullOrEmpty(s));
parameters.Add(step.ToStepScalarExpr(composedProperties));
parameters.AddRange(this.AnnotatedLabels[index].Select(SqlUtil.GetValueExpr));
}
}
foreach (var block in queryBlocks)
{
parameters.Add(SqlUtil.GetScalarSubquery(block));
}
var tableRef = SqlUtil.GetFunctionTableReference(GremlinKeyword.func.Path, parameters, GetVariableName());
return(SqlUtil.GetCrossApplyTableReference(tableRef));
}