import { ColumnDefinition, DefaultSchemaGrammar, SchemaCommand } from '../../schema';
/**
 * SQLite schema grammar. SQLite has a single INTEGER type, no native boolean or
 * array types, and a very restricted ALTER TABLE. Auto-increment keys use
 * `INTEGER PRIMARY KEY AUTOINCREMENT`; booleans are stored as INTEGER (0/1);
 * arrays and JSON are stored as TEXT (JSON-encoded). Column changes and adding
 * foreign keys / dropping constraints after creation are not supported and
 * raise a clear error.
 */
export declare class SqliteSchemaGrammar extends DefaultSchemaGrammar {
    protected getAutoIncrementType(_column: ColumnDefinition): string;
    protected modifyUnsigned(_column: ColumnDefinition): string;
    protected booleanLiteral(value: boolean): string;
    protected arrayLiteral(value: any[]): string;
    protected getType(column: ColumnDefinition): string;
    protected compileChangeColumn(_table: string, column: ColumnDefinition): string[];
    protected compileCommand(table: string, command: SchemaCommand): string[];
    compileTableExists(table: string): {
        sql: string;
        bindings: any[];
    };
    compileColumnExists(table: string, column: string): {
        sql: string;
        bindings: any[];
    };
    /**
     * SQLite cannot `ALTER TABLE ... DROP COLUMN` when the column is indexed or
     * takes part in a foreign key, so the SchemaBuilder rebuilds the table instead.
     */
    dropColumnStrategy(): 'alter' | 'rebuild';
}