/**
 * Operation tracking for SQLite-backed TanStack sync backends.
 * Uses discriminated unions so TypeScript can narrow on `type`.
 */
type SQLOperation = {
    type: "select-all";
    tableName: string;
    itemsReturned: unknown[];
    itemCount: number;
    context: string;
    sql?: string;
    timestamp: number;
} | {
    type: "select-where";
    tableName: string;
    whereClause: string;
    itemsReturned: unknown[];
    itemCount: number;
    context: string;
    sql?: string;
    timestamp: number;
} | {
    type: "write";
    tableName: string;
    itemsWritten: unknown[];
    writeCount: number;
    context: string;
    timestamp: number;
} | {
    type: "insert";
    tableName: string;
    item: unknown;
    sql?: string;
    timestamp: number;
} | {
    type: "update";
    tableName: string;
    updates: unknown;
    sql?: string;
    timestamp: number;
} | {
    type: "delete";
    tableName: string;
    sql?: string;
    timestamp: number;
} | {
    type: "raw-query";
    sql: string;
    params?: unknown[];
    method: string;
    rowCount: number;
    context: string;
    timestamp: number;
};
interface SQLInterceptor {
    onOperation?: (operation: SQLOperation) => void;
}

export type { SQLInterceptor, SQLOperation };