Insert语句转换存在ROW关键词问题
tangyibo opened this issue · comments
您好，请教下下面的这个代码转换后的Insert语句存在row关键词，而当前大多数的oracle/mysql/postgresql数据库都不支持，请指教：
public static void main(String[] args) {
String sql="insert into dept (name, deptno) values ('a', 123) ,('b',345) ";
SqlParser.Config config =SqlParser.configBuilder().setCaseSensitive(true).build();
SqlParser parser = SqlParser.create(sql, config);
SqlNode sqlNode =null;
try {
sqlNode=parser.parseStmt();
}catch(SqlParseException e) {
e.printStackTrace();
}
System.out.println(sqlNode.toSqlString(OracleSqlDialect.DEFAULT));
System.out.println("========================");
System.out.println(sqlNode.toSqlString(PostgresqlSqlDialect.DEFAULT));
System.out.println("========================");
System.out.println(sqlNode.toSqlString(MysqlSqlDialect.DEFAULT));
}
结果输出为：
INSERT INTO "DEPT" ("NAME", "DEPTNO")
VALUES ROW('a', 123),
ROW('b', 345)
========================
INSERT INTO "DEPT" ("NAME", "DEPTNO")
VALUES ROW('a', 123),
ROW('b', 345)
========================
INSERT INTO `DEPT` (`NAME`, `DEPTNO`)
VALUES ROW('a', 123),
ROW('b', 345)
但我期望的是：
INSERT INTO "DEPT" ("NAME", "DEPTNO")
VALUES ('a', 123),('b', 345)
========================
INSERT INTO "DEPT" ("NAME", "DEPTNO")
VALUES ('a', 123),('b', 345)
========================
INSERT INTO `DEPT` (`NAME`, `DEPTNO`)
VALUES ('a', 123),('b', 345)
这是SqlRowOperator的unparse的默认行为， 默认会将方法名ROW带进去， 在calcite中 value后面是一个Row方法， 如果不想输出， 可以覆写该方法
这个只是编码输出问题吧
[image: image.png]
如果是中文， 会走到if 分支，采用uncode编码。如果需要改变默认行为，直接override
Yibo <notifications@github.com> 于2019年11月13日周三 上午11:15写道：
… 还有个问题请教下：关于中文字符串编码问题，代码如下：
public static void main(String[] args) {
String sql="select * from test_table where name = '王五' ";
SqlParser.Config config = SqlParser.configBuilder().setCaseSensitive(true).build();
SqlParser parser = SqlParser.create(sql, config);
SqlNode sqlNode =null;
try {
sqlNode=parser.parseQuery();
}catch(SqlParseException e) {
e.printStackTrace();
}
System.out.println(sqlNode.toSqlString(OracleSqlDialect.DEFAULT));
System.out.println("========================");
System.out.println(sqlNode.toSqlString(PostgresqlSqlDialect.DEFAULT));
System.out.println("========================");
System.out.println(sqlNode.toSqlString(MysqlSqlDialect.DEFAULT));
System.out.println("========================");
System.out.println(sqlNode.toSqlString(MssqlSqlDialect.DEFAULT));
}
SQL转换后输出的结果为：
SELECT *
FROM "TEST_TABLE"
WHERE "NAME" = u&'\738b\4e94'
========================
SELECT *
FROM "TEST_TABLE"
WHERE "NAME" = u&'\738b\4e94'
========================
SELECT *
FROM `TEST_TABLE`
WHERE `NAME` = u&'\738b\4e94'
========================
SELECT *
FROM [TEST_TABLE]
WHERE [NAME] = u&'\738b\4e94'
而期望的结果为：
SELECT *
FROM "TEST_TABLE"
WHERE "NAME" ='王五'
========================
SELECT *
FROM "TEST_TABLE"
WHERE "NAME" = '王五'
========================
SELECT *
FROM `TEST_TABLE`
WHERE `NAME` = '王五'
========================
SELECT *
FROM [TEST_TABLE]
WHERE [NAME] = '王五'
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