some sql stmt was parsed to wrong identifier

[xiongjiwei]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

use test;
create table t(1e int);
insert into t values (1);
select t.1e from test.t;

2. What did you expect to see? (Required)

mysql> select t.1e from test.t;
+------+
| 1e   |
+------+
|    1 |
+------+
1 row in set (0.00 sec)

3. What did you see instead (Required)

mysql> select t.1e from test.t;
ERROR 1054 (42S22): Unknown column 't' in 'field list'

4. What is your TiDB version? (Required)

[lzmhhh123]

/assign @xuyifangreeneyes

[xiongjiwei]

similar to pingcap/parser#1114

[xiongjiwei]

it's about parser

[xiongjiwei]

/assign @xiongjiwei

[ti-srebot]

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