import type { SQL, Column } from '../db/types.js';
/** Extracts a boolean from a JSONB column: `(column->>'key')::boolean`. Supports nested paths. */
export declare function boolean(column: Column | SQL, ...keys: string[]): SQL<boolean>;
/** Extracts a number from a JSONB column: `(column->>'key')::numeric`. Supports nested paths. */
export declare function number(column: Column | SQL, ...keys: string[]): SQL<number>;
/** Extracts an integer from a JSONB column: `(column->>'key')::integer`. Supports nested paths. */
export declare function integer(column: Column | SQL, ...keys: string[]): SQL<number>;
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