microsoft / microsoft/qlib

dump update have issue when updating symbols with missing bars

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@SunsetWolf is already working on this.

Since May 6, 2022.

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Description

🐛 Bug Description

I am trying highfreq data and found that the pred result only consist 1/4 of all symbols. The reason appears to be the dump_update cannot properly handle the case that some symbols has missing bars (0 volumes during certain time), thus these symbols are not updated. Please fix this.

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