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| <optgroup label="v1.x"> |
| <option value="/news/2019/09/11/release-1.21.0/">Release 1.21.0</option> |
| <option value="/news/2019/06/24/release-1.20.0/">Release 1.20.0</option> |
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| <option value="/news/2016/02/17/streaming-sql-talk/">Streaming SQL in Samza</option> |
| <option value="/news/2016/02/17/elser-pmc/">Calcite appoints Josh Elser to PMC</option> |
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| <option value="/news/2015/11/08/new-committers/">Calcite adds 2 committers</option> |
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| <h2> |
| Release 1.15.0 |
| <a href="/news/2017/12/11/release-1.15.0/" class="permalink" title="Permalink">∞</a> |
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| release |
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| <span class="post-date"> |
| 11 Dec 2017 |
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| <a href="http://people.apache.org/~jhyde" class="post-author"> |
| <img src="http://github.com/julianhyde.png" |
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| jhyde |
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| <div class="post-content"> |
| <!-- |
| |
| --> |
| |
| <p>The <a href="">Apache Calcite PMC</a> |
| is pleased to announce |
| <a href="/docs/history.html#v1-15-0">Apache Calcite release 1.15.0</a>. |
| In this release, three months after 1.14.0, 50 issues are fixed by 22 |
| contributors. Among more modest improvements and bug-fixes, here are |
| some features of note:</p> |
| |
| <ul> |
| <li>[<a href="https://issues.apache.org/jira/browse/CALCITE-707">CALCITE-707</a>] |
| adds <em>DDL commands</em> to Calcite for the first time, including <em>CREATE and DROP |
| commands for schemas, tables, foreign tables, views, and materialized views</em>. |
| We know that DDL syntax is a matter of taste, so we added the extensions to a |
| <em>new “server” module</em>, leaving the “core” parser unchanged;</li> |
| <li>[<a href="https://issues.apache.org/jira/browse/CALCITE-2061">CALCITE-2061</a>] |
| allows <em>dynamic parameters</em> in the <code class="highlighter-rouge">LIMIT</code> and <code class="highlighter-rouge">OFFSET</code> and clauses;</li> |
| <li>[<a href="https://issues.apache.org/jira/browse/CALCITE-1913">CALCITE-1913</a>] |
| refactors the JDBC adapter to make it easier to <em>plug in a new SQL dialect</em>;</li> |
| <li>[<a href="https://issues.apache.org/jira/browse/CALCITE-1616">CALCITE-1616</a>] |
| adds a <em>data profiler</em>, an algorithm that efficiently analyzes large data sets |
| with many columns, estimating the number of distinct values in columns and |
| groups of columns, and finding functional dependencies. The improved |
| statistics are used by the algorithm that designs summary tables for a |
| lattice.</li> |
| </ul> |
| |
| <p>Calcite now supports JDK 10 and Guava 23.0. (It continues to run on |
| JDK 7, 8 and 9, and on versions of Guava as early as 14.0.1. The default |
| version of Guava remains 19.0, the latest version compatible with JDK 7 |
| and the Cassandra adapter’s dependencies.)</p> |
| |
| <p>This is the <a href="https://issues.apache.org/jira/browse/CALCITE-2027">last |
| release that will support JDK 7</a>.</p> |
| |
| |
| <p>See the <a href="/docs/history.html#v1-15-0">release notes</a>; |
| <a href="/downloads#source-releases">download</a> the release.</p> |
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| <h4>Recent Releases</h4> |
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| <a href="/news/2019/09/11/release-1.21.0/">1.21.0</a> |
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| <li class=""> |
| <a href="/news/2019/06/24/release-1.20.0/">1.20.0</a> |
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| <a href="/news/2019/03/25/release-1.19.0/">1.19.0</a> |
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| <a href="/news/2018/12/21/release-1.18.0/">1.18.0</a> |
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| <a href="/news/2018/07/20/release-1.17.0/">1.17.0</a> |
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| <h4>Other News</h4> |
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| <a href="/news/2017/03/31/new-avatica-repository/">New Avatica Repository</a> |
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| <a href="/news/2016/03/22/cassandra-adapter/">Cassandra Adapter</a> |
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| |
| <li class=""> |
| <a href="/news/2016/02/17/streaming-sql-talk/">Streaming SQL in Samza</a> |
| </li> |
| |
| <li class=""> |
| <a href="/news/2016/02/17/elser-pmc/">Calcite appoints Josh Elser to PMC</a> |
| </li> |
| |
| <li class=""> |
| <a href="/news/2015/11/08/new-committers/">Calcite adds 2 committers</a> |
| </li> |
| |
| <li class=""> |
| <a href="/news/2015/10/22/calcite-graduates/">Calcite Graduates</a> |
| </li> |
| |
| <li class=""> |
| <a href="/news/2015/07/31/xldb-best-lightning-talk/">XLDB 2015 best lightning talk</a> |
| </li> |
| |
| <li class=""> |
| <a href="/news/2015/06/05/algebra-builder/">Algebra builder</a> |
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| |
| <li class=""> |
| <a href="/news/2015/04/24/new-committers/">Calcite adds 5 committers</a> |
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