1. support struct data type
2. add array / map / struct literal syntax
3. fix array union / intersect / except type coercion
4. fix explict cast data type check for array
5. fix bound function type coercion
- add config `enable_col_auth` to temporarily disable column permissions(because old/new planner has bug when select from view)
- Restore the old optimizer to the previous authentication method
- Support for new optimizer authentication（Legacy issue: When querying the view, the permissions of the base table will be authenticated. The view's own permissions should be authenticated and processed after the new optimizer is improved）
- fix: show grants for non-existent users
- fix: role:`admin` can not grant/revoke to/from user
FEATURE:
1. enable array type in Nereids
2. support generice on function signature
3. support array and map type in type coercion and type check
4. add element_at and element_slice syntax in Nereids parser
REFACTOR:
1. remove AbstractDataType
BUG FIX:
1. remove FROM from nonReserved keyword list
TODO:
1. support lambda expression
2. use Nereids' way do function type coercion
3. use castIfnotSame when do implict cast on BoundFunction
4. let AnyDataType type coercion do same thing as function type coercion
5. add below array function
- array_apply
- array_concat
- array_filter
- array_sortby
- array_exists
- array_first_index
- array_last_index
- array_count
- array_shuffle shuffle
- array_pushfront
- array_pushback
- array_repeat
- array_zip
- reverse
- concat_ws
- split_by_string
- explode
- bitmap_from_array
- bitmap_to_array
- multi_search_all_positions
- multi_match_any
- tokenize
if we write sql with : `select cast(array() as array<varchar(10)>)`
castexpr in fe will call analyze() with `Type.matchExactType(childType, type, true);`
here array type only check contains_null , but should check inner type to make array matchExactType right
update the capacity coeficient for calcutating the backend load score:
1. Add fe config entry `backend_load_capacity_coeficient` to allow setting the capacity coeficient manually;
2. Adjust calculating capacity coeficient as below.
We emphasize disk usage for calculating load score.
If a be has a high used capacity percent, we should increase its load score.
So we increase capacity coefficient with a be's used capacity percent.
But this is not enough. For example, if the tablets have a big difference in data size.
Then for below two BEs, their load score maybe the same:
BE A: disk usage = 60%, replica number = 2000 (it contains the big tablets)
BE B: disk usage = 30%, replica number = 4000 (it contains the small tablets)
But what we want is: firstly move some big tablets from A to B, after their disk usages are close,
then move some small tablets from B to A, finally both of their disk usages and replica number
are close.
To achieve this, when the max difference between all BE's disk usages >= 30%, we set the capacity cofficient to 1.0 and avoid the affect of replica num. After the disk usage difference decrease, then decrease the capacity cofficient to make replica num effective.
fe log is large for a busy doris cluster, if you want to preserve some historical logs, it cost too much disk space.
enable compression is a good way to save space.
and a gzip compressed text file can be viewed without decompression.
Truncate char or varchar columns if size is smaller than file columns or not found in the file column schema by session var `truncate_char_or_varchar_columns`.
configs
Bdbje elect timeout is 30 seconds, so we enlarge thrift_rpc_timeout_ms
and txn_commit_rpc_timeout_ms to 60s.
BTW: enlarge bdbje_lock_timeout_second from 1 to 5.
Support such grammar
ANALYZE TABLE test WITH CRON "* * * * * ?"
Such job would be scheduled as the cron expr specifie, but natively support minute-level schedule only
1. cancel future when meet timeout and add config to modify rpc timeout
2. add config to modify numof BackendServiceProxy since under high concurrent work load GRPC channel will be blocked
Add a new FE config `force_olap_table_replication_num`.
If this config is larger than 0, when doing creating table operation, the replication num of table will
forcibly be this value.
Default is 0, which make no effect.
This config will only effect the creating olap table operation, other operation such as `add partition`,
`modify table properties` will not be effect.
The motivation of this config is that the most regression test cases are creating table will single replica,
this will be the regression test running well in p0, p1 pipeline.
But we also need to run these cases in multi backend Doris cluster, so we need test cases will multi replicas.
But it is hard to modify each test cases. So I add this config, so that we can simply set it to create all tables with
specified replication number.
Use file system type and Conf as key to cache remote file system.
This could avoid get a new file system for each external table partition's location.
The time cost for fetching 100000 partitions with 1 file for each partition is reduced to 22s from about 15 minutes.
Enlarge jetty_server_max_http_header_size to avoid Request Header Fields
Too Large error when streamloading to FE.
Signed-off-by: freemandealer <freeman.zhang1992@gmail.com>
