internal override GraphViewExecutionOperator Compile(QueryCompilationContext context, GraphViewCommand command)
        {
            var dropTargetParameter = Parameters[0] as WColumnReferenceExpression;
            var dropTargetIndex     = context.LocateColumnReference(dropTargetParameter);

            List <string> populateColumns = new List <string>()
            {
                GremlinKeyword.TableDefaultColumnName
            };

            for (int i = 1; i < this.Parameters.Count; i++)
            {
                WValueExpression populateColumn = this.Parameters[i] as WValueExpression;
                Debug.Assert(populateColumn != null, "populateColumn != null");
                populateColumns.Add(populateColumn.Value);
            }

            var dropOp = new DropOperator(context.CurrentExecutionOperator, command, dropTargetIndex);

            context.CurrentExecutionOperator = dropOp;
            foreach (string columnName in populateColumns)
            {
                context.AddField(Alias.Value, columnName, ColumnGraphType.Value);
            }

            return(dropOp);
        }
Beispiel #2
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        internal override GraphViewExecutionOperator Compile(QueryCompilationContext context, GraphViewConnection dbConnection)
        {
            var dropTargetParameter = Parameters[0] as WColumnReferenceExpression;
            var dropTargetIndex     = context.LocateColumnReference(dropTargetParameter);

            var dropOp = new DropOperator(context.CurrentExecutionOperator, dbConnection, dropTargetIndex);

            context.CurrentExecutionOperator = dropOp;

            return(dropOp);
        }