Struct Checks 

pub struct Checks {
    pub plan: Box<Plan>,
    pub messages: Vec<String>,
}

The CHECK constraints of a table, bound as one query over it.

The query answers, for each row the table holds, whether each constraint fails on it. The write runs it with the table standing in for the rows it wrote, so a failed constraint is found before anything the statement wrote is kept.

Fields

plan: Box<Plan>

One boolean column per constraint, true where the row fails it. A null is a pass.

messages: Vec<String>

The pin’s message for each constraint, in the same order as the columns.

Trait Implementations

impl Debug for Checks

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.