/// <reference types="node" />
export interface ReadORCOptionsCommon {
    /** The list of columns to read */
    columns?: string[];
    /** Only these stripes will be read from the file. */
    stripes?: number[][];
    /** The number of rows to skip from the start of the file */
    skipRows?: number;
    /** The total number of rows to read */
    numRows?: number;
    /** Use row index if available for faster seeking (default 'true') */
    useIndex?: boolean;
    /** Names of the columns that should be read as 128-bit Decimal */
    decimalColumns?: string[];
}
export interface ReadORCFileOptions extends ReadORCOptionsCommon {
    sourceType: 'files';
    sources: string[];
}
export interface ReadORCBufferOptions extends ReadORCOptionsCommon {
    sourceType: 'buffers';
    sources: (Uint8Array | Buffer)[];
}
export declare type ReadORCOptions = ReadORCFileOptions | ReadORCBufferOptions;
export interface WriteORCOptions {
    /** The name of compression to use (default 'None'). */
    compression?: 'snappy' | 'none';
    /** Write timestamps in int96 format (default 'true'). */
    enableStatistics?: boolean;
}
export interface TableWriteORCOptions {
    /** Column names to write in the header. */
    columnNames?: string[];
}
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