After using table alias, can't limit autocomplete to only column names

I would like to be able to have my column names show on top of my autocomplete list after using a table alias when using Database plugin.

Desired Behavior

If in SQL query "FROM some_table st',

then when I use the alias "st." I should get a an autocomplete with the column names at the top.

Current Behavior

The autocomplete after a table alias shows a bunch of functions which is irrelevant nearly all the time.