[calcite] 02/02: Add 1.21.0 release announcement

[za...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

zabetak pushed a commit to branch branch-1.21
in repository https://gitbox.apache.org/repos/asf/calcite.git

commit 3f7bbae47ad113121d3885ee70d2aa246490a033
Author: zabetak <15...@users.noreply.github.com>
AuthorDate: Wed Sep 11 01:27:33 2019 +0200

    Add 1.21.0 release announcement
---
 site/_posts/2019-09-11-release-1.21.0.md | 54 ++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/site/_posts/2019-09-11-release-1.21.0.md b/site/_posts/2019-09-11-release-1.21.0.md
new file mode 100644
index 0000000..cb5034f
--- /dev/null
+++ b/site/_posts/2019-09-11-release-1.21.0.md
@@ -0,0 +1,54 @@
+---
+layout: news_item
+date: "2019-09-11 21:40:00 +0000"
+author: zabetak
+version: 1.21.0
+categories: [release]
+tag: v1-21-0
+sha: adc1532de853060d24fd0129257a3fae306fb55c
+---
+<!--
+{% comment %}
+Licensed to the Apache Software Foundation (ASF) under one or more
+contributor license agreements.  See the NOTICE file distributed with
+this work for additional information regarding copyright ownership.
+The ASF licenses this file to you under the Apache License, Version 2.0
+(the "License"); you may not use this file except in compliance with
+the License.  You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+{% endcomment %}
+-->
+
+The [Apache Calcite PMC]({{ site.baseurl }})
+is pleased to announce
+[Apache Calcite release 1.21.0]({{ site.baseurl }}/docs/history.html#v1-21-0).
+
+This release comes two months after 1.20.0. It includes more than 100 resolved
+issues, comprising a large number of new features as well as general improvements
+and bug-fixes.
+
+It is worth highlighting that Calcite now:
+* supports implicit type coercion in various contexts
+  (<a href="https://issues.apache.org/jira/browse/CALCITE-2302">CALCITE-2302</a>);
+* allows transformations of Pig Latin scripts into algebraic plans
+  (<a href="https://issues.apache.org/jira/browse/CALCITE-3122">CALCITE-3122</a>);
+* provides an implementation for the main features of `MATCH_RECOGNIZE` in the
+  `Enumerable` convention
+  (<a href="https://issues.apache.org/jira/browse/CALCITE-1935">CALCITE-1935</a>);
+* supports correlated `ANY`/`SOME`/`ALL` sub-queries
+  (<a href="https://issues.apache.org/jira/browse/CALCITE-3031">CALCITE-3031</a>);
+* introduces anonymous types based on `ROW`, `ARRAY`, and nested collection
+  (<a href="https://issues.apache.org/jira/browse/CALCITE-3233">CALCITE-3233</a>,
+  <a href="https://issues.apache.org/jira/browse/CALCITE-3231">CALCITE-3231</a>,
+  <a href="https://issues.apache.org/jira/browse/CALCITE-3250">CALCITE-3250</a>);
+* brings new join algorithms for the `Enumerable` convention
+  (<a href="https://issues.apache.org/jira/browse/CALCITE-2979">CALCITE-2979</a>,
+  <a href="https://issues.apache.org/jira/browse/CALCITE-2973">CALCITE-2973</a>,
+  <a href="https://issues.apache.org/jira/browse/CALCITE-3284">CALCITE-3284</a>).