import type { Connection, FieldPacket, OkPacket, Pool, ResultSetHeader, RowDataPacket } from 'mysql2/promise';
import { type Cache } from "../cache/core/index.cjs";
import type { WithCacheConfig } from "../cache/core/types.cjs";
import { entityKind } from "../entity.cjs";
import type { Logger } from "../logger.cjs";
import type { MySqlDialect } from "../mysql-core/dialect.cjs";
import type { SelectedFieldsOrdered } from "../mysql-core/query-builders/select.types.cjs";
import { type Mode, MySqlPreparedQuery, type MySqlPreparedQueryConfig, type MySqlPreparedQueryHKT, type MySqlQueryResultHKT, MySqlSession, MySqlTransaction, type MySqlTransactionConfig, type PreparedQueryKind } from "../mysql-core/session.cjs";
import type { RelationalSchemaConfig, TablesRelationalConfig } from "../relations.cjs";
import type { Query, SQL } from "../sql/sql.cjs";
import { type Assume } from "../utils.cjs";
export type MySql2Client = Pool | Connection;
export type MySqlRawQueryResult = [ResultSetHeader, FieldPacket[]];
export type MySqlQueryResultType = RowDataPacket[][] | RowDataPacket[] | OkPacket | OkPacket[] | ResultSetHeader;
export type MySqlQueryResult<T = any> = [T extends ResultSetHeader ? T : T[], FieldPacket[]];
export declare class MySql2PreparedQuery<T extends MySqlPreparedQueryConfig> extends MySqlPreparedQuery<T> {
    private client;
    private params;
    private logger;
    private fields;
    private customResultMapper?;
    private generatedIds?;
    private returningIds?;
    static readonly [entityKind]: string;
    private rawQuery;
    private query;
    constructor(client: MySql2Client, queryString: string, params: unknown[], logger: Logger, cache: Cache, queryMetadata: {
        type: 'select' | 'update' | 'delete' | 'insert';
        tables: string[];
    } | undefined, cacheConfig: WithCacheConfig | undefined, fields: SelectedFieldsOrdered | undefined, customResultMapper?: ((rows: unknown[][]) => T["execute"]) | undefined, generatedIds?: Record<string, unknown>[] | undefined, returningIds?: SelectedFieldsOrdered | undefined);
    execute(placeholderValues?: Record<string, unknown>): Promise<T['execute']>;
    iterator(placeholderValues?: Record<string, unknown>): AsyncGenerator<T['execute'] extends any[] ? T['execute'][number] : T['execute']>;
}
export interface MySql2SessionOptions {
    logger?: Logger;
    cache?: Cache;
    mode: Mode;
}
export declare class MySql2Session<TFullSchema extends Record<string, unknown>, TSchema extends TablesRelationalConfig> extends MySqlSession<MySqlQueryResultHKT, MySql2PreparedQueryHKT, TFullSchema, TSchema> {
    private client;
    private schema;
    private options;
    static readonly [entityKind]: string;
    private logger;
    private mode;
    private cache;
    constructor(client: MySql2Client, dialect: MySqlDialect, schema: RelationalSchemaConfig<TSchema> | undefined, options: MySql2SessionOptions);
    prepareQuery<T extends MySqlPreparedQueryConfig>(query: Query, fields: SelectedFieldsOrdered | undefined, customResultMapper?: (rows: unknown[][]) => T['execute'], generatedIds?: Record<string, unknown>[], returningIds?: SelectedFieldsOrdered, queryMetadata?: {
        type: 'select' | 'update' | 'delete' | 'insert';
        tables: string[];
    }, cacheConfig?: WithCacheConfig): PreparedQueryKind<MySql2PreparedQueryHKT, T>;
    all<T = unknown>(query: SQL): Promise<T[]>;
    transaction<T>(transaction: (tx: MySql2Transaction<TFullSchema, TSchema>) => Promise<T>, config?: MySqlTransactionConfig): Promise<T>;
}
export declare class MySql2Transaction<TFullSchema extends Record<string, unknown>, TSchema extends TablesRelationalConfig> extends MySqlTransaction<MySql2QueryResultHKT, MySql2PreparedQueryHKT, TFullSchema, TSchema> {
    static readonly [entityKind]: string;
    transaction<T>(transaction: (tx: MySql2Transaction<TFullSchema, TSchema>) => Promise<T>): Promise<T>;
}
export interface MySql2QueryResultHKT extends MySqlQueryResultHKT {
    type: MySqlRawQueryResult;
}
export interface MySql2PreparedQueryHKT extends MySqlPreparedQueryHKT {
    type: MySql2PreparedQuery<Assume<this['config'], MySqlPreparedQueryConfig>>;
}