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zabetak pushed a commit to branch site
in repository https://gitbox.apache.org/repos/asf/calcite.git
commit 50a2f95deede6e680fc02953e97a75e14b0f940c
Author: Haisheng Yuan <h.y...@alibaba-inc.com>
AuthorDate: Sat May 23 22:23:51 2020 -0500
Add 1.23.0 release announcement
---
site/_posts/2020-05-23-release-1.23.0.md | 49 ++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/site/_posts/2020-05-23-release-1.23.0.md
b/site/_posts/2020-05-23-release-1.23.0.md
new file mode 100644
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+++ b/site/_posts/2020-05-23-release-1.23.0.md
@@ -0,0 +1,49 @@
+---
+layout: news_item
+date: "2020-05-23 22:30:00 -0500"
+author: hyuan
+version: 1.23.0
+categories: [release]
+tag: v1-23-0
+sha: b708fdc46d4c5fd4c5a6c7a398823318a7b4dce3
+---
+<!--
+{% 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 1.23.0]({{ site.baseurl }}/docs/history.html#v1-23-0).
+
+This release comes two months after 1.22.0. It includes more than 100 resolved
+issues, comprising a lot of new features as well as performance improvements
+and bug-fixes. For some complex queries, the planning speed can be 50x or more
+faster than previous versions with built-in default rule set. It is also worth
+highlighting that Calcite now:
+
+* Supports top down trait request and trait enforcement without abstract
converter
+ (<a
href="https://issues.apache.org/jira/browse/CALCITE-3896";>CALCITE-3896</a>)
+* Improves `VolcanoPlanner` performance by removing rule match and subset
importance
+ (<a
href="https://issues.apache.org/jira/browse/CALCITE-3753";>CALCITE-3753</a>)
+* Improves `VolcanoPlanner` performance when abstract converter is enabled
+ (<a
href="https://issues.apache.org/jira/browse/CALCITE-2970";>CALCITE-2970</a>)
+* Supports ClickHouse dialect
+ (<a
href="https://issues.apache.org/jira/browse/CALCITE-2157";>CALCITE-2157</a>)
+* Supports `SESSION` and `HOP` Table function
+ (<a
href="https://issues.apache.org/jira/browse/CALCITE-3780";>CALCITE-3780</a>,
+ <a
href="https://issues.apache.org/jira/browse/CALCITE-3737";>CALCITE-3737</a>)
