import { SQL } from 'drizzle-orm/sql';
import { AnyPgColumn } from './columns';
export * from 'drizzle-orm/expressions';
export declare function concat(column: AnyPgColumn, value: string): SQL;
export declare function substring(column: AnyPgColumn, { from, for: _for }: {
    from?: number;
    for?: number;
}): SQL;
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