import { ConnectionConfig } from 'mysql';
export declare type BaseColumnType = 'string' | 'number' | 'Date';
export declare type SchemaInfo = {
    name: string;
    tables: TableInfo[];
};
export declare type TableInfo = {
    TABLE_NAME: string;
    AUTO_INCREMENT: number | null;
    UPDATE_TIME: string;
    ENGINE: string;
    columns: ColumnInfo[];
    keys: KeyInfo[];
};
export declare type ColumnInfo = {
    COLUMN_NAME: string;
    COLUMN_TYPE: string;
    IS_NULLABLE: 'YES' | 'NO';
    COLUMN_KEY: string;
    EXTRA: string;
    baseType: BaseColumnType;
    referencedTable?: string | null;
};
export declare type KeyInfo = {
    CONSTRAINT_NAME: string;
    COLUMN_NAME: string;
    REFERENCED_TABLE_NAME: string | null;
    REFERENCED_COLUMN_NAME: string | null;
};
export declare function GrabTablesInfo(dbConfig: ConnectionConfig, schema: string): Promise<SchemaInfo>;
export declare function GrabColumnsInfo(dbConfig: ConnectionConfig, table: any, schema: string): Promise<void>;
export declare function GrabKeysInfo(dbConfig: ConnectionConfig, table: TableInfo, schema: string): Promise<void>;
export declare const numericTypes: string[];
export declare const dateTypes: string[];
export declare function ParseColumnType(columnType: string): BaseColumnType;