Struct DefineEventStmt 

pub struct DefineEventStmt {
    pub span: Span,
    pub name: String,
    pub table: ObjectName,
    pub condition: Expr,
    pub action: Expr,
}

DEFINE EVENT statement — registers a trigger on table mutations.

DEFINE EVENT email_notification ON TABLE user
  WHEN $event = "CREATE"
  THEN (CREATE notification SET body = "Welcome " + $after.name);

Fields

span: Span

name: String

Event name

table: ObjectName

Table this event is attached to

condition: Expr

WHEN condition

action: Expr

THEN action (typically a statement wrapped in parens)

Trait Implementations

impl Clone for DefineEventStmt

fn clone(&self) -> DefineEventStmt

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DefineEventStmt

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

Formats the value using the given formatter.

impl PartialEq for DefineEventStmt

fn eq(&self, other: &DefineEventStmt) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for DefineEventStmt