import { AlterTriggerAction } from "./AlterAction";
import { BaseNode, Keyword } from "./Base";
import { RelationKind } from "./CreateTable";
import { Expr, Identifier, ListExpr, EntityName, ParenExpr, BinaryExpr } from "./Expr";
import { BlockStmt } from "./ProceduralLanguage";
export type AllTriggerNodes = AllTriggerStatements | TriggerEvent | TriggerTarget | ForEachClause | WhenClause | FromReferencedTableClause | TriggerTimingClause | TriggerReferencingClause | TriggerTransition | ExecuteClause;
export type AllTriggerStatements = CreateTriggerStmt | AlterTriggerStmt | DropTriggerStmt;
export interface CreateTriggerStmt extends BaseNode {
    type: "create_trigger_stmt";
    createKw: Keyword<"CREATE">;
    orReplaceKw?: [Keyword<"OR">, Keyword<"REPLACE">];
    kind?: RelationKind;
    triggerKw: Keyword<"TRIGGER">;
    ifNotExistsKw?: [Keyword<"IF">, Keyword<"NOT">, Keyword<"EXISTS">];
    name: EntityName;
    timeKw?: Keyword<"BEFORE" | "AFTER"> | [Keyword<"INSTEAD">, Keyword<"OF">];
    event: TriggerEventExpr;
    target: TriggerTarget;
    clauses: TriggerClause[];
    body: BlockStmt | ExecuteClause;
}
export type TriggerEventExpr = BinaryExpr<TriggerEventExpr, Keyword<"OR">, TriggerEventExpr> | TriggerEvent;
export interface TriggerEvent extends BaseNode {
    type: "trigger_event";
    eventKw: Keyword<"INSERT" | "DELETE" | "UPDATE" | "TRUNCATE">;
    ofKw?: Keyword<"OF">;
    columns?: ListExpr<Identifier>;
}
export interface TriggerTarget extends BaseNode {
    type: "trigger_target";
    onKw: Keyword<"ON">;
    table: EntityName;
}
type TriggerClause = ForEachClause | WhenClause | FromReferencedTableClause | TriggerTimingClause | TriggerReferencingClause;
export interface ForEachClause extends BaseNode {
    type: "for_each_clause";
    forEachKw: [Keyword<"FOR">, Keyword<"EACH">] | Keyword<"FOR">;
    itemKw: Keyword<"ROW" | "STATEMENT">;
}
export interface WhenClause extends BaseNode {
    type: "when_clause";
    whenKw?: Keyword<"WHEN">;
    expr: Expr;
}
export interface FromReferencedTableClause extends BaseNode {
    type: "from_referenced_table_clause";
    fromKw: Keyword<"FROM">;
    table: EntityName;
}
export interface TriggerTimingClause extends BaseNode {
    type: "trigger_timing_clause";
    timingKw?: [Keyword<"NOT">, Keyword<"DEFERRABLE">] | Keyword<"DEFERRABLE"> | [Keyword<"INITIALLY">, Keyword<"DEFERRED">] | [Keyword<"INITIALLY">, Keyword<"IMMEDIATE">] | [Keyword<"DEFERRABLE">, Keyword<"INITIALLY">, Keyword<"DEFERRED">] | [Keyword<"DEFERRABLE">, Keyword<"INITIALLY">, Keyword<"IMMEDIATE">];
}
export interface TriggerReferencingClause extends BaseNode {
    type: "trigger_referencing_clause";
    referencingKw: Keyword<"REFERENCING">;
    transitions: ListExpr<TriggerTransition>;
}
export interface TriggerTransition extends BaseNode {
    type: "trigger_transition";
    oldOrNewKw: Keyword<"OLD" | "NEW">;
    rowOrTableKw: Keyword<"TABLE" | "ROW">;
    asKw?: Keyword<"AS">;
    name: Identifier;
}
export interface ExecuteClause extends BaseNode {
    type: "execute_clause";
    executeKw: Keyword<"EXECUTE">;
    functionKw: Keyword<"FUNCTION" | "PROCEDURE">;
    name: EntityName;
    args: ParenExpr<ListExpr<Expr>>;
}
export interface AlterTriggerStmt extends BaseNode {
    type: "alter_trigger_stmt";
    alterTriggerKw: [Keyword<"ALTER">, Keyword<"TRIGGER">];
    trigger: EntityName;
    target: TriggerTarget;
    action: AlterTriggerAction;
}
export interface DropTriggerStmt extends BaseNode {
    type: "drop_trigger_stmt";
    dropTriggerKw: [Keyword<"DROP">, Keyword<"TRIGGER">];
    ifExistsKw?: [Keyword<"IF">, Keyword<"EXISTS">];
    trigger: EntityName;
    target?: TriggerTarget;
    behaviorKw?: Keyword<"CASCADE" | "RESTRICT">;
}
export {};