/**
 * @license
 * Copyright 2025 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
/**
 * Abstracts the dialect-specific differences between SQLite and PostgreSQL
 * for the parts of the storage layer that build SQL by string concatenation.
 *
 * The two things that differ are:
 *   - Identifier quoting (backticks vs double quotes)
 *   - Parameter placeholders (`?` vs `$N`)
 *
 * Keeping these in one place lets the predicate builder, prefix DDL helpers
 * and migrations runner emit the same SQL shape against either backend.
 */
export interface ISqlDialect {
    readonly name: "sqlite" | "postgres";
    /** Quote a table or column identifier so it survives unsafe characters. */
    quoteId(id: string): string;
    /** Render a parameter placeholder for the given 1-based index. */
    placeholder(index: number): string;
}
export declare const SqliteDialect: ISqlDialect;
export declare const PostgresDialect: ISqlDialect;
//# sourceMappingURL=Dialect.d.ts.map