Apache datasketches-postgresql-1.7.0

• Based on the latest datasketches-cpp 5.0.0 (upgraded from 4.1.0)
  • fixed slowness in Theta intersection
  • fixed incompatibility of serialized empty frequent items sketches with Java

Apache datasketches-postgresql-1.6.0

• Parallel query support (distributed aggregation)
• Added quantiles_double_sketch
• Added kll_double_sketch
• Fixed frequent_strings_sketch allocation
• Based on the latest datasketches-cpp 4.1.0 (upgraded from 3.1.0)
  • Substantial performance improvement of HLL union
  • Fixed a bug in Theta and Tuple union
  • Quantiles sketches default mode changed to inclusive
  • Fixed serialization of non-empty Theta and Tuple sketches with no entries
  • Support for older serialization versions of Theta sketch
  • Fixed serialization bug in KLL sketch

Apache datasketches-postgresql-1.5.0

• Based on the latest datasketches-cpp 3.1.0
• Fixed bug in Theta union (in datasketches-cpp 3.1.0)
• Used new wrapped_compact_theta_sketch to avoid some cost of deserialization
• Fixed handling of default parameters

Apache datasketches-postgresql-1.4.0

• Based on the latest data sketches-cpp 3.0.0
• Added aod_sketch (array-of-doubles tuple sketch)
• Added req_float_sketch (REQ quantiles sketch with high accuracy at high or low ranks)
• Added missing theta_sketch aggregate intersection

Apache Release 1.3.0-incubating

• The first release as Apache project (incubating)
• Based on the first Apache release of datasketches-cpp (1.0.0-incubating)
• Added HLL sketch
• Fixed a few problems with building and creating extension in a database

Apache Release 1.2.0-incubating

• added Theta sketch
• added Frequent Strings sketch

Apache Release 1.1.0-incubating

• packaged sketches-core-cpp as a part of the bundle to avoid dependency
• added kll_float_sketch_get_quantiles, kll_float_sketch_get_pmf and kll_float_sketch_get_n functions

Apache Release 1.0.0-incubating

v1.0.0

fixed URLs, added mandatory versions