Files
doris/fe
谢健 a136836770 [feature](Nereids) add two functions: char and covert (#23104)
add [char](https://doris.apache.org/zh-CN/docs/dev/sql-manual/sql-functions/string-functions/char/?_highlight=char) func
```
mysql> select char(68, 111, 114, 105, 115);
+--------------------------------------+
| char('utf8', 68, 111, 114, 105, 115) |
+--------------------------------------+
| Doris                                |
+--------------------------------------+
```

convert func
```
MySQL root@127.0.0.1:(none)> select convert(1 using gbk);
+-------------------+
| convert(1, 'gbk') |
+-------------------+
| 1                 |
+-------------------+
```
2023-08-30 17:09:06 +08:00
..

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# fe-common

This module is used to store some common classes of other modules.

# spark-dpp

This module is Spark DPP program, used for Spark Load function.
Depends: fe-common

# fe-core

This module is the main process module of FE.
Depends: fe-common, spark-dpp