Search on Slicer not working for Direct Query but works for Import

[cognosuser]

Hi,

I created Power bi report using Direct query against Oracle db, Search function using Slicer doesn't work (in desktop and service, it would buffer for about 3 seconds and values will be unchanged on the slicer).  When I changed to Import mode, Search function works.  It does this for all columns.   I can see this happening if it was searching for millions of rows, but I am only bringing back less than 4K records.  Any ideas why it won't work on Direct query mode?

thanks

[cognosuser]

Thanks @amitchandak ,

I forgot to mention that I am using Oracle View to connect via Direct Query and the search is not working on all columns so can't create index.  Assuming its a bug, will probably end up converting view to a table.  Thanks for your help. 

[amitchandak]

@cognosuser , Make sure there is an index on the column you are queying.

Check if fetch size can help in direct query

https://www.thebiccountant.com/2021/01/12/your-oracle-data-import-in-power-bi-and-power-query-is-slo...

There is an open idea for sometime -https://ideas.powerbi.com/ideas/idea/?ideaid=3ea4da28-52c8-ea11-bf21-0003ff528e0d