RecordSortedList and temporary table - axapta

Question

I have a performance issue with multiple temporary tables that I'm trying to solve with RecordSortedList, but I'm getting strange results. I have a temporary table that has a couple hundred thousand records being inserted into it, and then used elsewhere for joins to other temporary tables. The problem is after trace parsing this solution the insert is taking too long for all the individual inserts and I was hoping to use a RecordSortedList to bulk insert into the staging table. However, I can't find a handle to the temporary table after the RecordSortedList.insertDatabase() call.
I've tried something like this:
RecordSortedList tmpTableSortedList;
MyTempTable myTempTable;
AssetTrans assetTrans;
int i = 1;
tmpTableSortedList = new RecordSortedList(tableNum(MyTempTable));
tmpTableSortedList.sortOrder(fieldNum(MyTempTable, LineNum));
//the real scenario has a much more complicated data gathering, but just for sample
while select * from AssetTrans
{
myTempTable.AssetGroup = assetTrans.AssetGroup
myTempTable.LineNum = i;
tmpTableSortedList.ins(myTempTable);
i++;
}
tmpTableSortedList.insertDatabase();
//strange things happen here
MyTempTable myTempTableCopy;
AnotherTmpTable anotherTmpTable;
tmpTableSortedList.first(myTempTableCopy); //returns a buffer, but not usable buffer in join.
//does not work, I imagine because the myTempTableCopy isn't actually pointing to the
//inserted records above; somehow the temp table is out of scope.
while select * from anotherTmpTable
join myTempTableCopy
where anotherTmpTable.id == myTempTableCopy.id
{
//logic
}
Is there a way to get a pointer to the temp table after the call to RecordSortedList.insertDatabase()? I've also tried linkPhysicalTable() and a few other things, but maybe RecordSortedList was not supposed to be used with tempDb tables?
Edit: Like Aliaksandr points out below this works with RecordInsertList instead of RecordSortedList

Answer 1

but maybe RecordSortedList was not supposed to be used with tempDb tables?
Error message when using TempDb tables:
RecordInsertList or RecordSortedList operations are not allowed with database temporary tables.
So it's not allowed, which might make sense because RecordSortedList is a memory-based object and TempDb tables are not. I would think you could though because I'm not sure there's a huge difference in a TempDb table and a Regular table when they're both stored on disk?
If you wanted to use an InMemory table, look at \Classes\CustVendSettle specifically the variable rslTmpOverUnderReverseTax, which uses an InMemory table.
IF TempDb tables were allowed, you would use getPhysicalTableName() to get the handle combined with useExistingTempDBTable().
Or did I misread your question?

Answer 2

does not work, I imagine because the myTempTableCopy isn't actually pointing to the inserted records above; somehow the temp table is out of scope.
Method new of RecordSortedList has additional Common parameter where you should pass your tempDB table buffer.
Error message when using TempDb tables:
RecordInsertList or RecordSortedList operations are not allowed with database temporary tables.
So it's not allowed, which might make sense because RecordSortedList is a memory-based object and TempDb tables are not.
Although the message says we can't use temporary tables for such operations, indeed we can. We just need to be careful because the code must be executed on the server.
RecordSortedList objects must be server-located before the insertDatabase method can be called. Otherwise, an exception is thrown.
I have a temporary table that has a couple hundred thousand records being inserted into it
There is no limit to the size of a RecordSortedList object, but they are completely memory-based, so there are potential memory consumption problems. So this may not be the best solution in your case.