import type { ColumnSchema, ForeignKeySchema, IndexSchema, QuerierPool, SqlQuerier } from '../../type/index.js';
import { AbstractSqlSchemaIntrospector } from './abstractSqlSchemaIntrospector.js';
/**
 * MySQL/MariaDB schema introspector.
 * Works with both MySQL and MariaDB as they share the same information_schema structure.
 */
export declare class MysqlSchemaIntrospector extends AbstractSqlSchemaIntrospector {
    protected readonly pool: QuerierPool;
    constructor(pool: QuerierPool);
    protected getTableNamesQuery(): string;
    protected tableExistsQuery(): string;
    protected parseTableExistsResult(results: {
        count?: number | bigint;
    }[]): boolean;
    protected getColumnsQuery(_tableName: string): string;
    protected getIndexesQuery(_tableName: string): string;
    protected getForeignKeysQuery(_tableName: string): string;
    protected getPrimaryKeyQuery(_tableName: string): string;
    protected mapTableNameRow(row: {
        table_name: string;
    }): string;
    protected mapColumnsResult(_querier: SqlQuerier, _tableName: string, results: MysqlColumnRow[]): Promise<ColumnSchema[]>;
    protected mapIndexesResult(_querier: SqlQuerier, _tableName: string, results: {
        index_name: string;
        columns: string;
        is_unique: number;
    }[]): Promise<IndexSchema[]>;
    protected mapForeignKeysResult(_querier: SqlQuerier, _tableName: string, results: {
        constraint_name: string;
        columns: string;
        referenced_table: string;
        referenced_columns: string;
        delete_rule: string;
        update_rule: string;
    }[]): Promise<ForeignKeySchema[]>;
    protected mapPrimaryKeyResult(results: {
        column_name: string;
    }[]): string[] | undefined;
    protected parseDefaultValue(defaultValue: string | null): unknown;
}
type MysqlColumnRow = {
    column_name: string;
    column_type: string;
    is_nullable: string;
    column_default: string | null;
    column_key: string;
    extra: string;
    character_maximum_length: number | bigint | null;
    numeric_precision: number | bigint | null;
    numeric_scale: number | null;
    column_comment: string | null;
};
/**
 * Alias for MysqlSchemaIntrospector.
 * MariaDB uses the same information_schema structure as MySQL.
 */
export declare const MariadbSchemaIntrospector: typeof MysqlSchemaIntrospector;
export {};
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