Deveel.Data.Sql.Query.QueryTablePlanner.Clone C# (CSharp) Method

        private QueryTablePlanner Clone()
        {
            var copy = new QueryTablePlanner();

            int sz = tablePlans.Count;
            for (int i = 0; i < sz; ++i) {
                copy.tablePlans.Add(tablePlans[i].Clone());
            }

            // Copy the left and right links in the PlanTableSource
            for (int i = 0; i < sz; ++i) {
                var src = tablePlans[i];
                var mod = copy.tablePlans[i];

                // See how the left plan links to which index,
                if (src.LeftPlan != null) {
                    int n = IndexOfPlan(src.LeftPlan);
                    mod.LeftJoin(copy.tablePlans[n], src.LeftJoinType, src.LeftOnExpression);
                }

                // See how the right plan links to which index,
                if (src.RightPlan != null) {
                    int n = IndexOfPlan(src.RightPlan);
                    mod.RightJoin(copy.tablePlans[n], src.RightJoinType, src.RightOnExpression);
                }
            }

            return copy;
        }