Function
prepare
Prepare a statement, given a connection token (which can represent a connection or session), to a Postgres database.
Queries must be parameterized, with named arguments in the form of $<integer>, for example:
SELECT email,username FROM users WHERE uuid=$1;
NOTE: To see how to obtain a connection-token, see connection.wit.
prepare: func(statement: string) -> result<prepared-statement-token, statement-prepare-error>;