import type { PwSnapshot, PwTableSnapshot, PwColumnSnapshot, PwIndexSnapshot, PwForeignKeySnapshot, PwCheckSnapshot, PwUniqueSnapshot, PwCompositePKSnapshot } from './snapshot.js';
export type DiffOp = {
    type: 'create_table';
    table: PwTableSnapshot;
} | {
    type: 'drop_table';
    table: PwTableSnapshot;
} | {
    type: 'add_column';
    tableName: string;
    tableSchema: string;
    column: PwColumnSnapshot;
} | {
    type: 'drop_column';
    tableName: string;
    tableSchema: string;
    column: PwColumnSnapshot;
} | {
    type: 'alter_column_type';
    tableName: string;
    tableSchema: string;
    column: string;
    from: string;
    to: string;
} | {
    type: 'alter_column_set_not_null';
    tableName: string;
    tableSchema: string;
    column: string;
} | {
    type: 'alter_column_drop_not_null';
    tableName: string;
    tableSchema: string;
    column: string;
} | {
    type: 'alter_column_set_default';
    tableName: string;
    tableSchema: string;
    column: string;
    value: string;
} | {
    type: 'alter_column_drop_default';
    tableName: string;
    tableSchema: string;
    column: string;
} | {
    type: 'alter_column_set_generated';
    tableName: string;
    tableSchema: string;
    column: PwColumnSnapshot;
} | {
    type: 'alter_column_drop_generated';
    tableName: string;
    tableSchema: string;
    column: string;
} | {
    type: 'alter_column_set_identity';
    tableName: string;
    tableSchema: string;
    column: PwColumnSnapshot;
} | {
    type: 'alter_column_drop_identity';
    tableName: string;
    tableSchema: string;
    column: string;
} | {
    type: 'create_index';
    tableName: string;
    tableSchema: string;
    index: PwIndexSnapshot;
} | {
    type: 'drop_index';
    tableName: string;
    tableSchema: string;
    index: PwIndexSnapshot;
} | {
    type: 'add_foreign_key';
    tableName: string;
    tableSchema: string;
    fk: PwForeignKeySnapshot;
    tablePartitioned: boolean;
} | {
    type: 'drop_foreign_key';
    tableName: string;
    tableSchema: string;
    fk: PwForeignKeySnapshot;
} | {
    type: 'add_check';
    tableName: string;
    tableSchema: string;
    check: PwCheckSnapshot;
} | {
    type: 'drop_check';
    tableName: string;
    tableSchema: string;
    check: PwCheckSnapshot;
} | {
    type: 'add_unique';
    tableName: string;
    tableSchema: string;
    unique: PwUniqueSnapshot;
} | {
    type: 'drop_unique';
    tableName: string;
    tableSchema: string;
    unique: PwUniqueSnapshot;
} | {
    type: 'add_composite_pk';
    tableName: string;
    tableSchema: string;
    pk: PwCompositePKSnapshot;
} | {
    type: 'drop_composite_pk';
    tableName: string;
    tableSchema: string;
    pk: PwCompositePKSnapshot;
};
/** The wire name of the table an op acts on, across all `DiffOp` shapes. */
export declare function diffOpTableName(op: DiffOp): string;
export declare function diffSnapshots(prev: PwSnapshot, cur: PwSnapshot): DiffOp[];
//# sourceMappingURL=diff.d.ts.map