Consider the following query for Postgres:
SELECT * FROM person where name IN (:ids) or lastname IN (:ids)
The expanded form should render into (assuming three items in the bound parameter):
SELECT * FROM person where name IN ($0, $1, $2) or lastname IN ($0, $1, $2)
instead, it renders:
SELECT * FROM person where name IN ($0, $1, $2) or lastname IN ($3, $4, $5)
Original report: pgjdbc/r2dbc-postgresql#252