Std.Db.Query.matchingMissing
fn
matchingMissing: &Std.Db.Query.Statement -> Str -> Result[Std.Db.Query.Statement, Std.Db.Query.QueryError]This is a callable function.
What it does
A condition that a column holds nothing.
Read the signature
- The text after the name is the type checked by Pudu.
- Read arrows from left to right: inputs come first, and the final type is returned.
- & borrows a value for this call instead of moving or copying it.
- Names inside [ ] are type arguments, such as the item type held by a collection.
- Result makes success and recoverable failure part of the function's type.