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Posted to commits@calcite.apache.org by fr...@apache.org on 2019/05/15 12:25:46 UTC
[calcite-avatica-go] branch master updated (7b197cb -> ca36f54)
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francischuang pushed a change to branch master
in repository https://gitbox.apache.org/repos/asf/calcite-avatica-go.git.
discard 7b197cb [CALCITE-3026] Add news item for 4.0.0 release
new ca36f54 [CALCITE-3026] Add news item and set date for 4.0.0 release
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Summary of changes:
site/_docs/go_history.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[calcite-avatica-go] 01/01: [CALCITE-3026] Add news item and set
date for 4.0.0 release
Posted by fr...@apache.org.
This is an automated email from the ASF dual-hosted git repository.
francischuang pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/calcite-avatica-go.git
commit ca36f5430b3c81d9fbb21b0b65b3334aaf6eeb2f
Author: Francis Chuang <fr...@apache.org>
AuthorDate: Wed May 15 22:19:55 2019 +1000
[CALCITE-3026] Add news item and set date for 4.0.0 release
---
site/_docs/go_history.md | 2 +-
site/_posts/2019-05-16-release-avatica-go-4.0.0.md | 46 ++++++++++++++++++++++
2 files changed, 47 insertions(+), 1 deletion(-)
diff --git a/site/_docs/go_history.md b/site/_docs/go_history.md
index f586913..a2f9cf1 100644
--- a/site/_docs/go_history.md
+++ b/site/_docs/go_history.md
@@ -28,7 +28,7 @@ For a full list of releases, see
Downloads are available on the
[downloads page]({{ site.baseurl }}/downloads/avatica-go.html).
-## <a href="https://github.com/apache/calcite-avatica-go/releases/tag/v4.0.0">4.0.0</a> / 2019-05-XX
+## <a href="https://github.com/apache/calcite-avatica-go/releases/tag/v4.0.0">4.0.0</a> / 2019-05-16
{: #v4-0-0}
Apache Calcite Avatica Go 4.0.0 is a major release of Avatica Go with a number of improvements and a breaking change.
diff --git a/site/_posts/2019-05-16-release-avatica-go-4.0.0.md b/site/_posts/2019-05-16-release-avatica-go-4.0.0.md
new file mode 100644
index 0000000..9614a72
--- /dev/null
+++ b/site/_posts/2019-05-16-release-avatica-go-4.0.0.md
@@ -0,0 +1,46 @@
+---
+layout: news_item
+date: "2019-05-16 08:30:00 +0000"
+author: francischuang
+version: 4.0.0
+categories: [release]
+tag: v4-0-0
+sha: 3790ef5
+component: avatica-go
+---
+<!--
+{% 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 %}
+-->
+
+Apache Calcite Avatica Go 4.0.0 is a major release with numerous improvements and a breaking change for Apache Phoenix.
+As this a a new major version, users of this package will need to upgrade their import paths to
+`"github.com/apache/calcite-avatica-go/v4"`.
+
+**Breaking change for Apache Phoenix ([CALCITE-2763](https://issues.apache.org/jira/browse/CALCITE-2724)):**
+In Apache Phoenix, null and empty strings are equivalent. For some background on why this is the case, see
+[PHOENIX-947](https://issues.apache.org/jira/browse/PHOENIX-947). In version 3 of Avatica-Go and below, null and empty
+strings are returned as an empty string `""` to the client. This prevented database/sql's built in NullString type from
+working correctly. From 4.0.0 onwards, null and empty strings will be returned as a `nil`. This allows the usage of the
+`sql.NullString` type.
+
+For this release, both [dep](https://github.com/golang/dep) and Go modules are supported for package management. As
+Go modules will be turned on by default in Go 1.13.0 (estimated to be released in September/October 2019), it is highly
+recommended that users of this package start migrating to using Go modules to ease the transition.
+
+The Calcite team recommends users of this package to upgrade to this version, where practical, as the dependencies being
+used by this package have also been upgraded.
\ No newline at end of file