Module ops 

Sequence operations for retrieving and manipulating sequence values.

Functions

currval

Generate SQL for getting the current value of a sequence (last retrieved value in session).

default_nextval

Generate SQL expression for using a sequence as a default value.

last_insert_id

Generate SQL for getting the last inserted ID (auto-increment value).

nextval

Generate SQL for getting the next value from a sequence.

setval

Generate SQL for setting a sequence to a specific value.