count(distinct) for Direct Query

[Jyothi_Suragani]

Hi,

Am reading data from postgres to powerbi with direct query mode. count(distinct) is not working am pasting the error below.when i change it to import mode then its working.

Error Message:

OLE DB or ODBC error: [Expression.Error] We couldn't fold the expression to the data source. Please try a simpler expression..

[Jyothi_Suragani]

Hi @amitchandak 

am not writting any dax fun am directly using the count(distinct) in the visual.

[amitchandak]

@Jyothi_Suragani , You just used a table not SQL in the advance option of connection?

Also try measure like

new measure = Countrows(Summarize(Table, Table[Column]) )

[Jyothi_Suragani]

@amitchandak 

Yes am just using table and then in the visual,

per a day per a vendor i need distinct count of stores so am doing like below.

in the values i have given column and then am selecting count(distinct) like below

[amitchandak]

@Jyothi_Suragani , Please report an issue too -https://community.powerbi.com/t5/Issues/idb-p/Issues

[amitchandak]

@Jyothi_Suragani , If it is dax function then

new measure = distinctcount(Table[Column])

or

new measure = Countrows(Summarize(Table, Table[Column]) )