Compressed data layout for optimizing data transactions

A computer program product comprising a computer readable storage medium having computer readable program code embodied therewith, the program code being executable by a processor to:

• compress a first partition of a first data block of a compression group;
• store the compressed first partition a first compression entity;
• maintain an in-memory table, including the tool to update the in-memory table with data associated with an address of the stored compressed first partition;
• in response to a determination that the first compression entity is full, compress the in-memory table;
• and
• write the compressed table to the first compression entity.

A method comprising:

• compressing a first partition of a first data block of a compression group;
• storing the compressed first partition in a first compression entity;
• maintaining an in-memory table, including updating the in-memory table with data associated with an address of the stored compressed first partition;
• in response to determining that the first compression entity is full, compressing the in-memory table;
• and
• writing the compressed table to the first compression entity.