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doris/fe
vinson0526 ff4284f3fa [feature](hint)(mysql-compatibility) Support general hints in select statement (#7664)
Support general hints.

Sql example:

```sql
SELECT /*+ one_hint(1000000) another_hint(k = "v")*/ 1;
```

hints syntax is:

```
/*+ [ HINT_NAME( [ key [ =value ]? ]* ) ]+ */
```

- support multi hints, sep with space
- hint name could be any string in identifier format
- hint could have zero or more parameters, sep with comma
- hint parameter must have one key
- hint parameter could have zero or one value
- hint parameter‘s key and value connected by equal sign
2022-01-09 16:59:08 +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