Files
doris/fe
camby a7a85dd330 [chore](config) support select experimental session variable (#31837)
support select experimental variables:

Before change:


Before change:
select @@experimental_enable_nereids_planner;
ERROR 1193 (HY000): errCode = 2, detailMessage = Unknown system variable 'experimental_enable_nereids_planner'

show variables like 'experimental_enable_nereids_planner';
+-------------------------------------+-------+---------------+---------+
| Variable_name                       | Value | Default_Value | Changed |
+-------------------------------------+-------+---------------+---------+
| experimental_enable_nereids_planner | false | true          | 1       |
+-------------------------------------+-------+---------------+---------+

After change:
> select @@experimental_enable_nereids_planner;
+---------------------------------------+
| @@experimental_enable_nereids_planner |
+---------------------------------------+
|                                     1 |
+---------------------------------------+
2024-03-12 14:18:26 +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