import { BaseNode, Keyword } from "./Base";
import { Identifier, ListExpr } from "./Expr";
import { StringLiteral } from "./Literal";
export type AllExtensionNodes = AllExtensionStatements | CreateExtensionClause;
export type AllExtensionStatements = CreateExtensionStmt | DropExtensionStmt;
export interface CreateExtensionStmt extends BaseNode {
    type: "create_extension_stmt";
    createExtensionKw: [Keyword<"CREATE">, Keyword<"EXTENSION">];
    ifNotExistsKw?: [Keyword<"IF">, Keyword<"NOT">, Keyword<"EXISTS">];
    name: Identifier;
    withKw?: Keyword<"WITH">;
    clauses: CreateExtensionClause[];
}
type CreateExtensionClause = ExtensionSchemaClause | ExtensionVersionClause | ExtensionCascadeClause;
export interface ExtensionSchemaClause extends BaseNode {
    type: "extension_schema_clause";
    schemaKw: Keyword<"SCHEMA">;
    name: Identifier;
}
export interface ExtensionVersionClause extends BaseNode {
    type: "extension_version_clause";
    versionKw: Keyword<"VERSION">;
    name: Identifier | StringLiteral;
}
export interface ExtensionCascadeClause extends BaseNode {
    type: "extension_cascade_clause";
    cascadeKw: Keyword<"CASCADE">;
}
export interface DropExtensionStmt extends BaseNode {
    type: "drop_extension_stmt";
    dropExtensionKw: [Keyword<"DROP">, Keyword<"EXTENSION">];
    ifExistsKw?: [Keyword<"IF">, Keyword<"EXISTS">];
    names: ListExpr<Identifier>;
    behaviorKw?: Keyword<"CASCADE"> | Keyword<"RESTRICT">;
}
export {};