Question:
How feasible would it be to create this functionality in PostgreSQL: One creates a test version of a database that initially consists of read-links to the production version of the same database. Any code he/she then writes that reads from a table reads from the production database but any code that modifies data copies that table to the test database. The benefits of this are obviously huge for IT shops that need to constantly work on data in test environments as similar as possible to the production environment. Usually, this is a very difficult aspect of one's work and represents a great deal of risk. We always try to hard to ensure that what we migrate into production is going to work there the same as it did in test. And we should not do testing in a production environment. Such a feature would give PostgreSQL a major advantage over Oracle or DB2. And some day when PostgreSQL is also distributable, it'll be ideal for the enterprise. Matthew -- Anything that can be logically explained, can be programmed. ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])