US 2026/0099477 A1 · COLUMN DATA COMPRESSION

Abstract

This specification provides a column data compression method and apparatus, and a storage medium. The method includes: separately encoding the column data in a plurality of encoding schemes at a column level, to obtain at least one data stream corresponding to each encoding scheme; determining a target encoding scheme in which smallest storage space is occupied in the plurality of encoding schemes; determining a target compression algorithm with a highest compression rate at a stream level; and compressing at least one target data stream corresponding to the target encoding scheme based on the target compression algorithm, and storing compressed target data stream in a database. In the present specification, the column data can be encoded and compressed at at least two levels: the column level and the stream level, to improve a compression rate of the column data, and save more storage space.

Claims20

Dependent claims

A column data compression method, comprising:

separately encoding column data based on a plurality of encoding schemes at a column level, to obtain at least one data stream corresponding to each encoding scheme of the plurality of encoding schemes;
determining a target encoding scheme that occupies a smallest storage space among the plurality of encoding schemes;
determining a target compression algorithm with a highest compression rate at a stream level;
and
compressing the at least one target data stream corresponding to the target encoding scheme based on the target compression algorithm.

2 more elements

An electronic system, comprising:

one or more processors;
and
one or more storage devices, individually or collectively, having computer executable instructions stored thereon, the computer executable instructions, when executed by the one or more processors, enabling the one or more processors, individually or collectively, to implement actions including:
separately encoding column data based on a plurality of encoding schemes at a column level, to obtain at least one data stream corresponding to each encoding scheme of the plurality of encoding schemes;
determining a target encoding scheme that occupies a smallest storage space among the plurality of encoding schemes;
determining a target compression algorithm with a highest compression rate at a stream level;
and
compressing the at least one target data stream corresponding to the target encoding scheme based on the target compression algorithm.

5 more elements

A computer-readable storage medium, having computer executable instructions stored thereon, the computer executable instructions, when executed by one or more processors, enabling the one or more processors to, individually or collectively, implement actions comprising:

separately encoding column data based on a plurality of encoding schemes at a column level, to obtain at least one data stream corresponding to each encoding scheme of the plurality of encoding schemes;
determining a target encoding scheme that occupies a smallest storage space among the plurality of encoding schemes;
determining a target compression algorithm with a highest compression rate at a stream level;
and
compressing the at least one target data stream corresponding to the target encoding scheme based on the target compression algorithm.

2 more elements

Dependencies are inferred from the claim text.

Column data compression

Life of this patent

Column data compression

Life of this patent

Abstract

Claims20