[amibroker] Errors back filling from IB plugin

["Barry Scarborough" <razzbarry@xxxxxxxxxxxx>]

I have noticed that when I am running live before the market opens and 
collect pre-open data, when I back fill from IB to ensure that my 
database is up to date is overwrites the data I collected. What is 
happening? 

This is an example of what is happening. This morning I was using IBs 
paper trading account. When I closed the account to get ready for the 
day, I saved the pre-market data before I closed the paper account. 
When I opened my real account and backfilled the symbols it deleted all 
the data I had collected up to that point for this day only even though 
I had saved it. Everything before the backfill was gone.

Whose bug is this? IBs or ABs? How can I prevent it? I want to keep the 
pre-open data especially for the futures. How do I?

Thanks,
Barry



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