add tpc-h shape cases using leading hint
except:
single table without join q1 q6
not support feature include tables after subquery unnested q2 q16 q18 q20 q21 q22
MTMV add 3 properties:
partition_sync_limit: digit
partition_sync_time_unit: DAY/MONTH/YEAR
partition_sync_date_format: like "%Y-%m-%d"/"%Y%m%d"
For example, the current time is 2020-02-03 20:10:10
- If partition_sync_limit is set to 1 and partition_sync_time_unit is set to DAY, only partitions with a time greater than or equal to 2020-02-03 00:00:00 will be synchronized to the MTMV
- If partition_sync_limit is set to 1 and partition_sync_time_unit is set to MONTH, only partitions with a time greater than or equal to 2020-02-01 00:00:00 will be synchronized to the MTMV
- If partition_sync_limit is set to 1 and partition_sync_time_unit is set to YEAR, only partitions with a time greater than or equal to 2020-01-01 00:00:00 will be synchronized to the MTMV
- If partition_sync_limit is set to 3 and partition_sync_time_unit is set to MONTH, only partitions with a time greater than or equal to 2019-12-01 00:00:00 will be synchronized to the MTMV
- If partition_sync_limit is set to 4 and partition_sync_time_unit is set to DAY, only partitions with a time greater than or equal to 2020-01-31 00:00:00 will be synchronized to the MTMV
1. Trim Schema Names: Adapted the system to remove trailing spaces from DB2 schema names, ensuring compatibility without affecting query operations.
2. XML Mapping: Implemented a feature to directly map XML types to String.
When ifnull or nvl funtion have only one parameter, nereids planner would throw an exception and go back to
original planner/ Original planner get secend parameter directly without check, so it return unexpected error message
This PR #23026 support the partition prune for hive table with `_HIVE_DEFAULT_PARTITION`,
but it will always select partition with `_HIVE_DEFAULT_PARTITION`.
This PR #31613 support null partition for olap table's list partition, so we can treat `_HIVE_DEFAULT_PARTITION`
as null partition of hive table.
So this PR change the partition prune logic
Problem:
When partially updating columns without specifying the auto-increment column, and the imported data contains new keys, an error stating the auto-increment column could not be found occurs.
Reason:
The logic for partial column updates does not account for new keys in auto-increment columns. Since auto-increment columns can be generated by the system, it's possible to omit this column data during import. However, partial column updates treat this as a regular column, expecting it to be nullable or have a default value for automatic filling, overlooking the fact that auto-increment columns can also be auto-filled. This oversight leads to the error.
Solution:
Incorporate a check for auto-increment columns into the partial column update logic, and include the logic for generating auto-increment column values in the process of completing partial updates.
Issue Number: close#31569
Fix fe connection hang after too high qps
After fix, the third SQL will return error instead of hang:
ERROR 1203 (HY000): #42000Too many connections
