import type { SQL } from '../../db/types.js';
import type { DefinedTable } from '../../domain/types.js';
/**
 * `jsonb_build_object('field', "source"."column", ...)` over each trace-safe
 * field, qualified by `sourceAlias` (the CTE name the column resolves through:
 * `before` for the pre-image, `updated` / `deleted` / `inserted` / `upserted`
 * for the post-image). Returns `null` when the table has no trace-safe fields
 * — the caller substitutes `NULL::jsonb`.
 */
export declare function buildTraceSafeProjection(table: DefinedTable<any>, sourceAlias: string): SQL | null;
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