/**
 * Structural commands collected by a Blueprint alongside its columns. They map
 * one-to-one to the `compile<Name>` handling in the schema grammar. Fluent
 * wrappers (ForeignKeyDefinition, IndexDefinition) mutate these objects in
 * place so chained calls keep configuring the same command.
 */
export type SchemaCommand = PrimaryCommand | UniqueCommand | IndexCommand | ForeignCommand | DropColumnCommand | RenameColumnCommand | DropIndexCommand | DropUniqueCommand | DropPrimaryCommand | DropForeignCommand;
export interface PrimaryCommand {
    name: 'primary';
    columns: string[];
    index?: string;
}
export interface UniqueCommand {
    name: 'unique';
    columns: string[];
    index?: string;
}
export interface IndexCommand {
    name: 'index';
    columns: string[];
    index?: string;
    /** Index method/access-type (e.g. 'gin', 'gist'). PostgreSQL-only; ignored elsewhere. */
    using?: string;
}
export interface ForeignCommand {
    name: 'foreign';
    columns: string[];
    references?: string[];
    on?: string;
    onDelete?: string;
    onUpdate?: string;
    index?: string;
}
export interface DropColumnCommand {
    name: 'dropColumn';
    columns: string[];
}
export interface RenameColumnCommand {
    name: 'renameColumn';
    from: string;
    to: string;
}
export interface DropIndexCommand {
    name: 'dropIndex';
    index: string;
}
export interface DropUniqueCommand {
    name: 'dropUnique';
    index: string;
}
export interface DropPrimaryCommand {
    name: 'dropPrimary';
    index?: string;
}
export interface DropForeignCommand {
    name: 'dropForeign';
    index: string;
}