count_where over whole table in offline mode: project type kAggregation not supported

**Bug Description**
```
WARNING: Logging before InitGoogleLogging() is written to STDERR
I0906 17:05:28.948508 69395 zk_client.cc:564] zookeeper event with type -1, state 3, path
I0906 17:05:28.948614 69395 zk_client.cc:579] connect success
I0906 17:05:28.948652 69391 db_sdk.cc:216] init zk client with zk options [cluster:10.97.152.110:22181,10.97.152.190:22181,10.97.152.199:22181, path:/openmldb_cluster, zk_session_timeout:2000, log_level:0, log_file:] and session id 1
I0906 17:05:28.953351 69391 client_manager.cc:483] add client. name 10.97.152.110:9527, endpoint
I0906 17:05:28.953372 69391 client_manager.cc:483] add client. name 10.97.152.190:9527, endpoint
I0906 17:05:28.953377 69391 client_manager.cc:483] add client. name 10.97.152.199:9527, endpoint
I0906 17:05:28.957266 69391 db_sdk.cc:233] start to watch notify on table, function, ns leader, taskamanger leader
I0906 17:05:28.958261 69391 db_sdk.cc:55] init ns client with endpoint 10.97.152.110:6527 done
I0906 17:05:28.961437 69391 default_udf_library.cc:46] Creating DefaultUdfLibrary
_____ ______ _ _____ ______
/ ___ \ | ___ \| | (____ \ (____ \
| | | |____ ____ ____ | | _ | | | _ \ \ ____) )
| | | | _ \ / _ ) _ \| || || | | | | | | __ (
| |___| | | | ( (/ /| | | | || || | |_____| |__/ /| |__) )
\_____/| ||_/ \____)_| |_|_||_||_|_______)_____/ |______/
|_|

v0.6.0-01a7a67
10.97.152.110:6527/> use tutorial;
SUCCEED: Database changed
10.97.152.110:6527/tutorial> show variables;
--------------- ---------
Variable_name Value
--------------- ---------
enable_trace false
execute_mode offline
job_timeout 20000
sync_job false
--------------- ---------

4 rows in set
10.97.152.110:6527/tutorial> set @@sync_job=true;
SUCCEED
10.97.152.110:6527/tutorial> select * from t1;
+---+-----+---+-------+-------------------+---------+----------+--------+--------+-----+
| id| uid|mid| cardno| trans_time|trans_amt|trans_type|province| city|label|
+---+-----+---+-------+-------------------+---------+----------+--------+--------+-----+
| 1|UserA| M1|1111111|2022-02-02 10:00:00| 10.0| CASH| SH|ShangHai| true|
| 3|UserA| M2|1111111|2022-02-03 11:00:00| 20.0| POS| SH|ShangHai| true|
| 4|UserA| M3|1111111|2022-02-07 11:00:00| 15.0| POS| SH|ShangHai| true|
| 6|UserA| M1|1111111|2022-02-07 13:00:00| 20.0| CASH| BJ| BeiJing| true|
| 8|UserA| M2|1111111|2022-02-08 11:00:00| 50.0| CASH| BJ| BeiJing| true|
| 9|UserA| M3|1111111|2022-02-08 12:00:00| 100.0| POS| BJ| BeiJing| true|
| 2|UserB| M3|2222222|2022-02-01 11:30:00| 10.0| POS| SH|ShangHai| true|
| 5|UserB| M1|2222222|2022-02-07 10:00:00| 20.0| POS| SH|ShangHai| true|
| 7|UserB| M2|2222222|2022-02-07 12:00:00| 30.0| POS| SH|ShangHai| true|
| 10|UserB| M5|2222222|2022-02-08 11:00:00| 10.0| POS| SH|ShangHai| true|
| 1|UserA| M1|1111111|2022-02-02 10:00:00| 10.0| CASH| SH|ShangHai| true|
| 3|UserA| M2|1111111|2022-02-03 11:00:00| 20.0| POS| SH|ShangHai| true|
| 4|UserA| M3|1111111|2022-02-07 11:00:00| 15.0| POS| SH|ShangHai| true|
| 6|UserA| M1|1111111|2022-02-07 13:00:00| 20.0| CASH| BJ| BeiJing| true|
| 8|UserA| M2|1111111|2022-02-08 11:00:00| 50.0| CASH| BJ| BeiJing| true|
| 9|UserA| M3|1111111|2022-02-08 12:00:00| 100.0| POS| BJ| BeiJing| true|
| 2|UserB| M3|2222222|2022-02-01 11:30:00| 10.0| POS| SH|ShangHai| true|
| 5|UserB| M1|2222222|2022-02-07 10:00:00| 20.0| POS| SH|ShangHai| true|
| 7|UserB| M2|2222222|2022-02-07 12:00:00| 30.0| POS| SH|ShangHai| true|
| 10|UserB| M5|2222222|2022-02-08 11:00:00| 10.0| POS| SH|ShangHai| true|
+---+-----+---+-------+-------------------+---------+----------+--------+--------+-----+

10.97.152.110:6527/tutorial> select count_where(id, mid = 'M1') from t1;
Get exception: Project type kAggregation not supported
10.97.152.110:6527/tutorial> select count_where(id, id = '1') from t1;
Get exception: Project type kAggregation not supported
10.97.152.110:6527/tutorial>
```

**Expected Behavior**

**Steps to Reproduce**

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The error 'Project type kAggregation not supported' occurs when running count_where over a whole table in offline mode. Look at the SQL execution path for aggregation functions in offline mode, likely in the query planner or execution engine. Check the code handling 'count_where' and project types, starting from the SQL parser and moving to the aggregation logic. Reproduce the issue with the provided steps to see the exact failure point.

索引モデルが issue の本文から書いたものです。