[FEATURE]:select from json

### Describe what you want

He all, is there any orm suport for next query:
select json_col ->> 'abc' as ALIAS from my_table?

The issue does not name any files, tests, or entry points. Start by locating Drizzle's PostgreSQL query-selection and JSON expression APIs, then verify how aliases are represented and tested. Done means a documented ORM-supported way to select a JSON field by key and alias the result, with coverage for the reported query.

Written by the indexing model from the issue text.