When querying information_schema database, BE will call FE RPC
to get schema info such as db name list, table name list, etc.
But some external catalog when failed to get these info because of wrong connection info.
We should catch these kind of exception and skip it, so that it can continue to
get schema info of other catalogs.
Otherwise, the whole query on information_schema will fail, even if user just want to get
info of internal catalog.
And set jdbc connection timeout to 5s, to avoid thrift rpc timeout from BE to FE(default is 30s)
Reuse rowset for 2 reasons:
1. eliminate tablet lock for performance issue, if other thread hold the lock too long could affect point query latency
2. rowset should be acquired during lookup procedure
1. Fixed a problem with histogram statistics collection parameters.
2. Solved the problem that it takes a long time to collect histogram statistics.
TODO: Optimize histogram statistics sampling method and make the sampling parameters effective.
The problem is that the histogram function works as expected in the single-node test, but doesn't work in the multi-node test. In addition, the performance of the current support sampling to collect histogram is low, resulting in a large time consumption when collecting histogram information.
Fixed the parameter issue and temporarily removed support for sampling to speed up the collection of histogram statistics.
Will next support sampling to collect histogram information.
MoW updates the delete bitmap of the imported data during the compaction by rowid conversion. The correctness of rowid conversion is very important to the result of delete bitmap. So I add a rowid conversion result check.
1. forbiden some case in create mv with group by
select k1+1,sum(abs(k2+2)+k3+3) from d_table group by k1;
2. fix select fail on grouping column have diffrent expr with select list
create materialized view k1p2ap3psg as select k1+1,sum(abs(k2+2)+k3+3) from d_table group by k1+1;
mysql [test]>explain select k1+1,sum(abs(k2+2)+k3+3) from d_table group by k1;
ERROR 1105 (HY000): errCode = 2, detailMessage = select list expression not produced by aggregation output (missing from GROUP BY clause?): `k1` + 1
Support specifying AccessControllerFactory when creating catalog
create catalog hive properties(
...
"access_controller.class" = "org.apache.doris.mysql.privilege.RangerAccessControllerFactory",
"access_controller.properties.prop1" = "xxx",
"access_controller.properties.prop2" = "yyy",
...
)
So that user can specified their own access controller, such as RangerAccessController
Add interface to check column level privilege
A new method of CatalogAccessController: checkColsPriv(),
for checking column level privileges.
TODO:
Support grant column level privileges statements in Doris
Add TestExternalCatalog/Database/Table/ScanNode
These classes are used for FE unit test. In unit test you can
create catalog test1 properties(
"type" = "test"
"catalog_provider.class" = "org.apache.doris.datasource.ColumnPrivTest$MockedCatalogProvider"
"access_controller.class" = "org.apache.doris.mysql.privilege.TestAccessControllerFactory",
"access_controller.properties.key1" = "val1",
"access_controller.properties.key2" = "val2"
);
To create a test catalog, and specify catalog_provider to mock database/table/schema metadata
Set roles in current user identity in connection context
The roles can be used for authorization in access controller.
The SQL `SELECT nationkey FROM regression_test_query_p0_limit.tpch_tiny_nation ORDER BY nationkey DESC LIMIT 5`
make be core dump since dereference a nullptr `read_orderby_key_columns in VCollectIterator::_topn_next`,
triggered by skipping _colname_to_value_range init in #16818 .
This PR makes two changes:
1. avoid read_orderby_key_columns nullptr in TabletReader::_init_orderby_keys_param
2. return error if read_orderby_key_columns is nullptr unexpected in VCollectIterator::_topn_next to avoid core dump
Describe your changes.
1.DeployManager adds the ability to obtain domain names from third-party systems
2.When the DeployManager determines whether the node exists, add the domain name judgment logic
3.rename Backend.getHost() to getIp()
4.Delete the logic for handling UnknownHostException in FQDNManager, because there are two cases of UnknownHostException. If it occurs temporarily, it can wait for the next detection. If the node is deleted, the logic can be handed over to DeployManager for processing.
This commits forbid struct and map type to be distributed key/aggregation key.
The sql such as:
select distinct stuct_col from struct_table
will report an error.
1、support stream load with json, csv format for map
2、fix olap convertor when compaction action in map column which has null
3、support select outToFile for map
4、add some regression-test
Steps:
1. drop the old MTMV jobs
2. clear the old task records and clean the running and pending tasks
3. set the new scheduler info in MTMV and replay it in followers.
4. create a job in the master node.
Note that if you change the refresh info of MTMV, the old MTMV tasks will be cleaned.
The background is described in this issue: #15723,
where users used Apache Druid to satisfy such lambada requirements before.
We will not make Doris dropping data not belonged to current time window automatically like Druid,
which is not flexible. We demand a ability to support mutable/immutable partition, the PR works this way:
1. Support mutable property for a partition.
2. The mutable property of a partition is passed from FE to BE in a load procedure
3. If a record's partition is immutable, we mark this row as "un selected" which will not be included in computation of 'max_filter_ratio',
so that data write to immutable partition will be neglected and not cause load failure.
Use Example:
1. Add immutable partition or modify an partition to be immutable:
- alter table test_tbl add [temporary] partition xxx values less than ('xxx') ('mutable' = 'true');
- alter table test_tbl modify partition xx set ('mutable' = 'false');
2. Write 5 records into table, two of then belongs to immutable partition
Introduced a new function non_nullable to BE, which can extract concrete data column from a nullable column. If the input argument is already not a nullable column, raise an error.
fix dbt incremental :new ideas for no rollback and support incremental data rerun .
add snapshot
use 'mysql-connector-python' mysql driver to replace 'MysqlDb' driver
Support config like whether push down to es and refactor some code
Like transform to wildcard query and push down to es, this increases the cpu consumption of the es,
I add a switch control it.
* [typo](docs)supplement the document content
* Update grouping.md
Add space before and after English letters in CN docs and keep the English case consistent.
* Update grouping.md
Change the Chinese title to English
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
* fix bug, add remote meta for compaction
