DoesSchemaExist checks if schema exists.

GetTableColumns returns the list of columns for a given table.

Init creates a new pool, check connection is establised.

New create a new pool.

NewWithConfig creates a new pool with a given config.

PgxConnIface is interface representing pgx connection.

PgxIface is common interface for every pgx class.

PgxPoolIface is interface representing pgx pool.