ROW, TABLE, AND INDEX COMPRESSION

摘要

Methods, systems, and computer program products for compressing a row are described. A common prefix may be obtained and data in the row matching the common prefix may be identified. A column number of a column corresponding to a breakpoint of the common prefix may be determined and data matching the common prefix may be deleted from the row. An identifier of the common prefix may be inserted into the row and a breakpoint field in the row may be set to the determined column number.

主权项

1. A computerized method for compressing a row, the method comprising:
obtaining a common prefix; identifying data in the row matching the common prefix; determining a column number of a column corresponding to a breakpoint of the common prefix; setting a breakpoint field in the row to the determined column number; deleting the data matching the common prefix from the row; and inserting an identifier of the common prefix in the row.