Postgresql database connected but history tag is not plotting in easy chart

I am using Ignition 7.9 and postgresql database. Database status is valid and connected through default user postgres. But when I want to display the history tag in easy chart, the data is plotting. Same tag if I connected it through MySQL, it is working.What may be the reason. There are no any error messages. Is it we need to create table also in postgresql server? I have created only database and connected.

Ignition will automatically create the necessary tables when you’ve configured history correctly. Double-check that you have the connection set up as a history provider and that you’ve selected this history provider in the tags you wish to plot.

It got corrected; it was date mismatch with the database server & client… any way thanks for your reply…