Computed / calculated / virtual / derived columns in PostgreSQL

Question

Does PostgreSQL support computed / calculated columns, like MS SQL Server? I can\'t find anything in the docs, but as this feature is included in many other DBMSs I thought

Answer 1

Well, not sure if this is what You mean but Posgres normally support "dummy" ETL syntax. I created one empty column in table and then needed to fill it by calculated records depending on values in row.

UPDATE table01
SET column03 = column01*column02; /*e.g. for multiplication of 2 values*/

1. It is so dummy I suspect it is not what You are looking for.
2. Obviously it is not dynamic, you run it once. But no obstacle to get it into trigger.