public override void Initialize()
{
m_FunctionArguments =
Execute(FunctionArgumentCommandText)
.Select(o => FunctionArgument.CreateFrom(SqlHelper, o))
.ToDictionary(x => new FunctionArgumentKey(x.FunctionName, x.ArgumentPosition));
var functionArguments = m_FunctionArguments.Values.ToLookup(x => x.FunctionName);
m_FunctionsByName =
Execute(FunctionCommandText)
.Select(o => Function.CreateFrom(SqlHelper, o, functionArguments))
.ToDictionary(x => x.FunctionNameKey);
}