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layout: news_item date: “2022-08-02 12:00:00 +0000” author: sereda version: 1.31.0 categories: [release] tag: v1-31-0 sha: 86d1bf40

The [Apache Calcite PMC]({{ site.baseurl }}) is pleased to announce [Apache Calcite release 1.31.0]({{ site.baseurl }}/docs/history.html#v1-31-0).

This release comes four months after 1.30.0, contains contributions from 28 contributors, and resolves 81 issues.

Among others, it is worth highlighting the following improvements:

• [CALCITE-4865] Allow table functions to be polymorphic
• [CALCITE-5107] Support SQL hint for Filter, SetOp, Sort, Window, Values
• [CALCITE-35] Support parsing parenthesized joins
• [CALCITE-3890] Derive IS NOT NULL filter for the inputs of inner join
• [CALCITE-5085] Firebolt dialect implementation