- 可以做敏感字段过滤
- 可以做表权限
- 等等.....
以下是业务SQL的场景, 目前对中文支持不友好
p := sqlparser.NewSQLParser(`
select
t1.e1,
t2.f1,
t3.e ccc,
t3.f ddd
from
(select t2.b1 as e1, t2.d1 as f1 from (select a as b1, c as d1 from xx.table1) t2) t1,
(select t2.b as e, t2.d as f from (select a as b, c as d from yy.table2) t2) t3
`)
r, err := p.DoParser()
if err != nil {
t.Error(err)
} else {
t.Log(r.String())
}
意思查询
表用户 xx
表 table1
表字段
a -> b1 -> e1 (最终查询出来是e1)
b -> d1 -> f1 (最终查询出来是f1)
别用户 yy
表 table2
表字段
a -> b -> e -> ccc (最终查询出来是ccc)
c -> d -> f -> ddd (最终查询出来是ddd)
{
"xx": {
"Name": "xx",
"TableMap": {
"table1": {
"Name": "table1",
"Alias": {
"Name": "",
"Alias": {
"Name": "t2",
"Alias": {
"Name": "t1",
"Alias": null
}
}
},
"ColumnMap": {
"a": {
"Name": "a",
"Alias": {
"Name": "b1",
"Alias": {
"Name": "e1",
"Alias": {
"Name": "",
"Alias": null
}
}
}
},
"c": {
"Name": "c",
"Alias": {
"Name": "d1",
"Alias": {
"Name": "f1",
"Alias": null
}
}
}
}
}
}
},
"yy": {
"Name": "yy",
"TableMap": {
"table2": {
"Name": "table2",
"Alias": {
"Name": "",
"Alias": {
"Name": "t2",
"Alias": {
"Name": "t3",
"Alias": null
}
}
},
"ColumnMap": {
"a": {
"Name": "a",
"Alias": {
"Name": "b",
"Alias": {
"Name": "e",
"Alias": {
"Name": "ccc",
"Alias": null
}
}
}
},
"c": {
"Name": "c",
"Alias": {
"Name": "d",
"Alias": {
"Name": "f",
"Alias": {
"Name": "ddd",
"Alias": null
}
}
}
},
"f1": {
"Name": "f1",
"Alias": {
"Name": "",
"Alias": null
}
}
}
}
}
}
}
建 test 目录下
占留