⬆ 升级 H2 依赖，兼容 #12859

pom.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <!--
     Description: Solo POM.
-    Version: 3.18.3.69, Aug 18, 2019
+    Version: 3.18.3.70, Sep 11, 2019
     Author: <a href="http://88250.b3log.org">Liang Ding</a>
     Author: <a href="http://www.annpeter.cn">Ann Peter</a>
     Author: <a href="http://vanessa.b3log.org">Vanessa</a>
@@ -133,6 +133,12 @@
             <version>${org.b3log.latke.version}</version>
         </dependency>
 
+        <dependency>
+            <groupId>com.h2database</groupId>
+            <artifactId>h2</artifactId>
+            <version>1.4.199</version>
+        </dependency>
+
         <dependency>
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>

src/main/java/org/b3log/solo/service/ArticleQueryService.java

@@ -194,7 +194,7 @@ public class ArticleQueryService {
             }
 
             final StringBuilder queryCount = new StringBuilder("SELECT count(DISTINCT(b3_solo_article.oId)) as C FROM ");
-            final StringBuilder queryList = new StringBuilder("SELECT b3_solo_article.oId ").append(" FROM ");
+            final StringBuilder queryList = new StringBuilder("SELECT DISTINCT(b3_solo_article.oId) ").append(" FROM ");
             final StringBuilder queryStr = new StringBuilder(articleRepository.getName() + " AS b3_solo_article,").
                     append(tagArticleRepository.getName() + " AS b3_solo_tag_article").
                     append(" WHERE b3_solo_article.oId=b3_solo_tag_article.article_oId ").