How to use COALESCE in PostgreSQL

Given a set of vectors, coalesce() finds the first non-missing value at each position This is inspired by the SQL COALESCE function which does the same

COALESCE · Syntax DAX Copy COALESCE · Return value A scalar value coming from one of the

coalesce Part 1: Understanding The NVLCOALESCE Expression · Is NULL function is typically computationally faster than the Coalesce expression (although

coalesce The SQL COALESCE function returns the first value in the parameter list that is not NULL