[GitHub] [doris] morningman commented on a diff in pull request #11863: [Feature] (ODBC) support read/write emoji of utf16 via odbc table

Wed, 17 Aug 2022 03:23:24 -0700 


morningman commented on code in PR #11863:
URL: https://github.com/apache/doris/pull/11863#discussion_r947751310


##########
docs/zh-CN/docs/ecosystem/external-table/odbc-of-doris.md:
##########
@@ -371,3 +371,7 @@ sudo alien -i  
oracle-instantclient19.13-sqlplus-19.13.0.0.0-2.x86_64.rpm
 10. 报错`driver connect Err: xxx`
 
     通常是连接数据库失败，Err部分代表了不同的数据库连接失败的报错。这种情况通常是配置存在问题。可以检查是否错配了ip地址，端口或账号密码。
+    
+11. 读写mysql外表的emoji表情出现乱码
+
+    
Doris进行odbc外表连接时，默认采用的编码为utf8，由于mysql之中默认的utf8编码为utf8mb3，无法表示需要4字节编码的emoji表情。这里需要在建立mysql外表时设置`charset`=`utf8mb4`，便可以正常读写emoji表情😀。

Review Comment:
   ```suggestion
       
Doris进行odbc外表连接时，默认采用的编码为utf8，由于mysql之中默认的utf8编码为utf8mb4，无法表示需要4字节编码的emoji表情。这里需要在建立mysql外表时设置`charset`=`utf8mb4`，便可以正常读写emoji表情😀。
   ```



##########
build.sh:
##########
@@ -120,7 +120,7 @@ fi
 
 eval set -- "$OPTS"
 
-PARALLEL=$[$(nproc)/4+1]
+PARALLEL=$[$(nproc)/2+1]

Review Comment:
   ```suggestion
   PARALLEL=$[$(nproc)/4+1]
   ```



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