The lookup function doesn't return anything from the select statement inside it as the where clause fails. The coalesce is never executed ... ... <看更多>

Create index for WHERE COALESCE() condition · postgresql index postgresql-9.6 coalesce. I'm using PostgreSQL V9.6.11. Table DDL: CREATE ... ... <看更多>

nodejs-coalesce. Implementation of SQL's coalesce function: return the first argument that is not null. Features. From Postgres document: ... ... <看更多>