Thank you, @George_Thompson. I did enable PostGIS. According to the study guide, I am required to create a database first. I want to do this in ArcGIS Pro, but I keep being pointed to creating an Enterprise database, and I do not want to go through that route. I was able to connect to a default database, but I still cannot create a feature class in it. I did the copy and paste of an existing FC, which you suggested, and the same error occured. So the key issue is that the schema called 'postgres' does not exist. the existing schema is 'public'. see screenshot below.
Ok, so you create the PostgreSQL database (non-Enterprise GDB) outside of ArcGIS Pro. That can be done in pgadmin.
It looks like you are using the "template" database that is created with the PostGIS install.
You need to create a new database in PostgreSQL. There are MANY different ways to do this.
Here is how I do it in pgadmin: you must be logged in as the admin account (in my case is postgres)
1. Right Click the PostgreSQL instance name --> Create --> Database
2. provide a name and leave the owner as "postgres"
On the "Definition" tab, you use the "postgis_35_sample" database as the template. You can also set a tablespace location, if desired.
Then hit save.
3. In ArcGIS Pro, make a connection to that new DB and create a new FC, just call it test.
I usually create a database user, using the GP tool in Pro: https://pro.arcgis.com/en/pro-app/latest/tool-reference/data-management/create-database-user.htm, and have that user own the data.
Hope this helps clear up any confusion.
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