tristaZero commented on a change in pull request #8575:
URL: https://github.com/apache/shardingsphere/pull/8575#discussion_r540668956
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File path: docs/document/content/features/sharding/principle/parse.cn.md
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@@ -103,3 +103,108 @@ SQLVisitorEngine sqlVisitorEngine = new
SQLVisitorEngine(databaseType, "STATEMEN
SQLStatement sqlStatement = sqlVisitorEngine.visit(tree);
```
+
+- SQL格式化
+
+```
+/**
+ * databaseType type:String 可能值 MySQL
+ * useCache type:boolean 是否使用缓存
+ * @return String
+ */
+ParseTree tree = new SQLParserEngine(databaseType).parse(sql, useCache);
+SQLVisitorEngine sqlVisitorEngine = new SQLVisitorEngine(databaseType,
"FORMAT");
+String formatedSql = sqlVisitorEngine.visit(tree);
+
+//例子
+sql1 : select a+1 as b, name n from table1 join table2 where id=1 and
name='lu';
+sql2 : select id, name, age, sex, ss, yy from table1 where id=1;
+sql3 : select id, name, age, count(*) as n, (select id, name, age, sex from
table2 where id=2) as sid, yyyy from table1 where id=1;
Review comment:
Could you put these SQL cases and their formatted result into a table?
For example, one row of a table contains one SQL column and its formatted
output in another column. Therefore users can get a quick comparison, I guess.
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