/**
 * The name Postgres stores for an identifier: a quoted one keeps its case (quotes removed), an
 * unquoted one is folded to lower case. Used to key notification listeners the way Postgres names
 * the channel.
 */
export declare function toPostgresName(input: string): string;
/** Quote an identifier for SQL: wrap in double quotes, doubling any inside. */
export declare function quoteIdentifier(name: string): string;
/** A random 32-character hex id, for the names of temporary objects. */
export declare function randomId(): string;
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