Package Exports
- dt-sql-parser
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Readme
dt-sql-parser
本项目用于处理sql，目前含有功能
- 解析sql生成语法树(不支持CREATE等语句，具体可以查看
core/astParser文件)，支持单条sql语句 - 去除sql中的的注释(目前支持
--,/**/类型注释) - sql分割,根据
;将sql分割为数组 - 校验sql，hive sql等语法，并给予错误信息与建议提示
用法
过滤注释 / sql分割
const dtFilter=require("dt-sql-parser").filter;
const sql=`
/*sttttttttart*/create table /*hhhhhhhh
hhhhhh
aaaaaa*/ sql_task_comment_test(id int comment 'id') comment 'sql test';
--eeeeeeeend
`
console.log(dtFilter.filterComments(sql))//过滤注释
console.log(dtFilter.splitSql(sql));//分割sql生成ast树
const dtFilter=require("dt-sql-parser").parser;
const sql=`
/*sttttttttart*/select userId as id,name /*hhhhhhhh
hhhhhh
aaaaaa*/ from user where isDeleted=0
--eeeeeeeend
`
console.log(dtFilter.parse(sql))//注意，目前只支持单条sql语句，所以需要自己调用sql分割一条一条处理！校验hive sql语法
const dtSqlParser=require("dt-sql-parser").parser;
console.log(dtSqlParser.parseSyntax("selet * form",'hive'));
/*
{
"text": "selet",//错误部分
"token": "REGULAR_IDENTIFIER",//类型
"line": 0,
"loc": {//错误位置信息
"first_line": 1,
"last_line": 1,
"first_column": 0,
"last_column": 5
},
"ruleId": "0",
"expected": [//建议输入内容
{
"text": "select",//建议内容
"distance": 1//建议优先级
},
{
"text": "delete",
"distance": 2
}
],
"recoverable": false,
"incompleteStatement": true
}
*/