import type { Change, AmbiguousCallback } from "../types.js";
/**
 * Mutates `changes` in place: detects (drop-table, create-table) pairs whose
 * column sets have Jaccard similarity ≥ 0.8. Per spec §6.3.
 *
 * Must run BEFORE detectColumnRenames so a renamed table's columns aren't
 * scanned as orphaned drop/add pairs.
 *
 * Side-channel: diff() attaches `_columns` to drop-table changes so this
 * function has access to the dropped table's column list.
 */
export declare function detectTableRenames(changes: Change[], onAmbiguous: AmbiguousCallback | undefined): Promise<void>;
/**
 * Mutates `changes` in place: detects (drop-column 'old', add-column 'new') pairs
 * on the same table that match the rename heuristic. Per spec §6.2.
 *
 * For each candidate: invokes onAmbiguous (default 'drop+add' if absent).
 * - 'rename'  → replace the pair with a single rename-column Change.
 * - 'drop+add'→ leave both as-is.
 * - 'abort'   → throw.
 */
export declare function detectColumnRenames(changes: Change[], onAmbiguous: AmbiguousCallback | undefined): Promise<void>;
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