This module and associated pl/pgsql functions have been implemented to provide long locking support required by Web Feature Service specification. Users must use serializable transaction level otherwise locking mechanism would break. EnableLongTransactions() Enable long transaction support. This function creates the required metadata tables, needs to be called once before using the other functions in this section. Calling it twice is harmless. Availability: 1.1.3 DisableLongTransactions() Disable long transaction support. This function removes the long transaction support metadata tables, and drops all triggers attached to lock-checked tables. Availability: 1.1.3 CheckAuth([<schema>], <table>, <rowid_col>) Check updates and deletes of rows in given table for being authorized. Identify rows using <rowid_col> column. Availability: 1.1.3 LockRow([<schema>], <table>, <rowid>, <authid>, [<expires>]) Set lock/authorization for specific row in table <authid> is a text value, <expires> is a timestamp defaulting to now()+1hour. Returns 1 if lock has been assigned, 0 otherwise (already locked by other auth) Availability: 1.1.3 UnlockRows(<authid>) Remove all locks held by specified authorization id. Returns the number of locks released. Availability: 1.1.3 AddAuth(<authid>) Add an authorization token to be used in current transaction. Availability: 1.1.3