This is the reference manual for the component named postmodern, which is part of a library of the same name. Note that this package also exports the database-connection and database-error types from CL-postgres , and a few operators from S-SQL . query , execute , and any other function that would logically need to communicate with the database will raise a condition of the type database-error when something goes wrong. As a special case, errors that break the connection (socket errors, database shutdowns) will be raised as subtypes of database-connection-error , providing a :reconnect restart to re-try the operation that encountered to the error. Connecting Querying Inspecting the database Database access objects Table definition and creation Schemata Symbol-index class database-connection Objects of this type represent database ...