Deveel.Data.Sql.Query.QueryPlanner.MakeupFunctions C# (CSharp) Method

        private static int MakeupFunctions(PreparedQuerySelectColumns columnSet, IList<SqlExpression> aggregateFunctions, out SqlExpression[] defFunList, out string[] defFunNames)
        {
            // Make up the functions list,
            var functionsList = columnSet.FunctionColumns.ToList();
            int fsz = functionsList.Count;
            var completeFunList = new List<object>();
            for (int i = 0; i < fsz; ++i) {
                var scol = functionsList[i];
                completeFunList.Add(scol.Expression);
                completeFunList.Add(scol.InternalName.Name);
            }

            for (int i = 0; i < aggregateFunctions.Count; ++i) {
                completeFunList.Add(aggregateFunctions[i]);
                completeFunList.Add("HAVINGAGG_" + (i + 1));
            }

            int fsz2 = completeFunList.Count / 2;
            defFunList = new SqlExpression[fsz2];
            defFunNames = new string[fsz2];
            for (int i = 0; i < fsz2; ++i) {
                defFunList[i] = (SqlExpression)completeFunList[i * 2];
                defFunNames[i] = (string)completeFunList[(i * 2) + 1];
            }

            return fsz;
        }