[BUG] SQLParser解析starrocks， map取值操作符[ ]无法解析

[Aosilujia]

Database Type

Starrocks

Database Version

Starrocks

Druid Version

1.2.23

JDK Version

ajdk11

Error SQL

SELECT * FROM
(SELECT exp_tags[111] from tablea where exp_tags[111] = 22222)t;

Testcase Code

@Test
public void testParseSRMap(){
    String sql = "SELECT * FROM (SELECT exp_tags[111] from tablea where exp_tags[111] = 22222)t;";
    SQLExprParser parser = SQLParserUtils.createExprParser(sql, DbType.starrocks);
    SQLExpr expr = parser.expr();
    System.out.println(expr);
}

Stacktrace Info

com.alibaba.druid.sql.parser.ParserException: syntax error, error in :'FROM (SELECT exp_tags[111] from tablea wher', expect ), actual [, pos 31, line 1, column 31, token [

at com.alibaba.druid.sql.parser.SQLParser.printError(SQLParser.java:862)
at com.alibaba.druid.sql.parser.SQLParser.accept(SQLParser.java:870)
at com.alibaba.druid.sql.parser.SQLSelectParser.parseTableSource(SQLSelectParser.java:1133)
at com.alibaba.druid.sql.parser.SQLSelectParser.parseFrom(SQLSelectParser.java:1122)
at com.alibaba.druid.sql.parser.SQLSelectParser.query(SQLSelectParser.java:476)
at com.alibaba.druid.sql.parser.SQLSelectParser.select(SQLSelectParser.java:62)
at com.alibaba.druid.sql.parser.SQLExprParser.primary(SQLExprParser.java:933)
at com.alibaba.druid.sql.parser.SQLExprParser.expr(SQLExprParser.java:111)
at me.ele.lpd.data.science.TempStaticTest.testParseSRMap(TempStaticTest.java:41)

Error Info

sr从 MAP 结构中提取单值的方式是通过 my_map[key]。
sr map语法文档：
https://docs.starrocks.io/docs/sql-reference/data-types/semi_structured/Map/#access-map-data
目前我自己临时方案是用hive解析器替代了