Functions can have special null handling anyway; witness Oracle's decode . PostgreSQL cannot fix this without rewriting the SQL spec to fix the ... ... <看更多>

The aggregate FILTER clause, introduced Postgres 9.4, seems a bit faster in ... all non-null values (the corner case of the first row is open for debate). ... <看更多>

If you want null in id (in this case PostgreSQL would throw an error), you have to explicitly assign null. The only changes to node-orm2 ... ... <看更多>

A Postgres case statement is a conditional statement similar to ... To avoid null values in our case statement ... ... <看更多>