Transactions

Unless you are programming :const forms, you will need to manipulate tables and state in order to say anything useful.

In relic, you manipulate your database with transact.

transact is a function that accepts a database and a set of 'transaction ops', returning a new database with the ops applied.

A key idea with relic is that you can only manipulate tables, and you try to keep data in tables to a minimum, rederiving everything else with queries. materialization enables high performance in the face of this.

Ops

You basic operations mirror the SQL ones, see the linked docs for more info.

• :insert
• :update
• :delete
• :delete-exact
• :insert-ignore
• :insert-or-replace
• :insert-or-merge
• :insert-or-update
• :replace-all
• terse insert

Additional support

• A seq of ops is a valid op, this can sometimes save some boilerplate.
• A function from db -> op is a valid op, you can use this for gnarly dependent writes where pure data doesn't cut it.

See also change tracking, constraints.