findCoCodesByPartitioning
static CompressedSizeInfo findCoCodesByPartitioning(CompressedSizeEstimator est,
                                                    CompressedSizeInfo colInfos,
                                                    int k,
                                                    ACostEstimate costEstimator,
                                                    CompressionSettings cs)
Main entry point of CoCode.
 
 This package groups together ColGroups across columns, to improve compression further,
- Parameters:
- est- The size estimator used for estimating ColGroups potential sizes and construct compression
                      info objects
- colInfos- The information already gathered on the individual ColGroups of columns.
- k- The concurrency degree allowed for this operation.
- costEstimator- The Cost estimator to estimate the cost of the compression
- cs- The compression settings used in the compression.
- Returns:
- The estimated (hopefully) best groups of ColGroups.