import type { Snapshot, SnapshotColumn, SnapshotColumnDefault, SnapshotMaterializedView, SnapshotTable } from '../snapshot/types.js';
export interface CreateTableOperation {
    kind: 'CreateTable';
    table: SnapshotTable;
}
export interface DropTableOperation {
    kind: 'DropTable';
    tableName: string;
}
export interface AddColumnOperation {
    kind: 'AddColumn';
    tableName: string;
    column: SnapshotColumn;
}
export interface DropColumnOperation {
    kind: 'DropColumn';
    tableName: string;
    columnName: string;
}
export interface ModifyColumnDefaultOperation {
    kind: 'ModifyColumnDefault';
    tableName: string;
    columnName: string;
    previousDefault?: SnapshotColumnDefault;
    nextDefault?: SnapshotColumnDefault;
}
export interface ModifyColumnTypeOperation {
    kind: 'ModifyColumnType';
    tableName: string;
    columnName: string;
    previousType: string;
    nextType: string;
}
export interface CreateMaterializedViewOperation {
    kind: 'CreateMaterializedView';
    view: SnapshotMaterializedView;
}
export interface DropMaterializedViewOperation {
    kind: 'DropMaterializedView';
    viewName: string;
}
export interface RecreateMaterializedViewOperation {
    kind: 'RecreateMaterializedView';
    previousView: SnapshotMaterializedView;
    nextView: SnapshotMaterializedView;
}
export type TableMutationOperation = AddColumnOperation | DropColumnOperation | ModifyColumnDefaultOperation | ModifyColumnTypeOperation;
export interface AlterTableWithDependentViewsOperation {
    kind: 'AlterTableWithDependentViews';
    tableName: string;
    dependentViewNames: string[];
    operations: TableMutationOperation[];
}
export type MigrationOperation = AlterTableWithDependentViewsOperation | CreateMaterializedViewOperation | CreateTableOperation | DropMaterializedViewOperation | DropTableOperation | RecreateMaterializedViewOperation | TableMutationOperation;
export interface DiffWarning {
    kind: 'ModifyColumnTypeRequiresConfirmation';
    tableName: string;
    columnName: string;
    message: string;
}
export interface UnsupportedChange {
    kind: 'PossibleColumnRename' | 'TableEngineChanged' | 'TableSettingsChanged';
    message: string;
    tableName: string;
    columnName?: string;
}
export interface SnapshotDiffResult {
    previousSnapshot: Snapshot;
    nextSnapshot: Snapshot;
    operations: MigrationOperation[];
    warnings: DiffWarning[];
    unsupportedChanges: UnsupportedChange[];
}
//# sourceMappingURL=types.d.ts.map