The Apache Calcite PMC is pleased to announce Apache Calcite release 1.22.0.

This release comes five months after 1.21.0. It includes more than 250 resolved issues, comprising a large number of new features as well as general improvements and bug-fixes. Among others, it is worth highlighting the following.

We have also fixed some important bugs:

  • The metadata cache is fixed for rare cases that RelSets are merging (CALCITE-2018)
  • The GROUP_ID now returns correct results (CALCITE-1824)
  • CORRELATE row count estimation has been fixed, it is always 1 before (CALCITE-3711)
  • The modulus precision inference of DECIMALs has been fixed (CALCITE-3435)

See the release notes; download the release.