Doris is not responsible for managing snapshots, but it needs to clear all
snapshots before doing backup/restore regression testing, so a property is
added to indicate that existing snapshots need to be cleared when creating a
repo.
In addition, a regression test case for backup/restore has been added.
1. add checks and handling of sequence column in #21896 to insert statement in origin planner and Nereids planner.
2. disable drop sequence mapping column in schema change.
Hive partition columns' stats could be calculated from hive metastore data. Doesn't need to execute sql to get the stats.
This PR is using hive partition metadata to collect partition column stats.
### Before:
return errors when tvf queries an empty file or an error uri:
1. get parsed schema failed, empty csv file
2. Can not get first file, please check uri.
### Now:
we just return empty set when tvf queries an empty file or an error uri.
```sql
mysql> select * from s3(
"uri" = "https://error_uri/exp_1.csv",
"s3.access_key"= "xx",
"s3.secret_key" = "yy",
"format" = "csv") limit 10;
Empty set (1.29 sec)
```
I want to use Doris Multi-catalog to accelerate HMS query. My organization has custom distributed file system, and we think wrapping the fs access difference into broker (listLocatedFiles, openReader..) would be a elegant approach.
This pr introduce HMS catalog conf `bind.broker.name`. If we set this conf, file split, query scan operation will send to broker.
usage:
create a hms catalog with broker usage
```
CREATE CATALOG hive_catalog_broker PROPERTIES (
'type'='hms',
'hive.metastore.uris' = 'thrift://xxx',
'broker.name' = 'hdfs_broker'
);
```
When we try to query from this catalog, file split and query scan request will send to broker `hdfs_broker`.
More details about this pr:
1. Introduce HMS catalog proporty `bind.broker.name` to specify broker name to do remote path work. When `broker.name` is set, `enable.self.splitter` must be `true` to ensure file splitting process is executed in Fe
2. Introduce 2 more interfaces to broker service:
- `TBrokerIsSplittableResponse isSplittable(1: TBrokerIsSplittableRequest request)`, helps to invoke input format `isSplitable` interface.
- `TBrokerListResponse listLocatedFiles(1: TBrokerListPathRequest request)`, helps to do `listFiles` or `listLocatedStatus` for remote file system
3. 3 parts of whole processing will be executed in broker:
- Check whether the path with specified input format name `isSplittable`
- `listLocatedFiles` of table / partition locations.
- `OpenReader` for specified file splits.
Co-authored-by: chenlinzhong <490103404@qq.com>
In previous, if user property `'resource_tags.location'` is not set, the can use Backends with any resource tag.
It may confuse that when the DBA set part of Backends to resource group A, then the current existing user
should not be able to use this group A util it's `'resource_tags.location'` is set.
So in this PR, I change the behavior, that if user property `'resource_tags.location'` is not set, it can only use the
Backends with `default` tag.
- db support replication_allocation,when create table,if not set `replication_num` or `replication_allocation `,will use it in db
- fix partition property will disappear when table partition is not null
Issue Number: close#25093
We can set hdfs hedged configs when creating catalog, just like this:
```
CREATE CATALOG `test_ctl` PROPERTIES (
...
"dfs.client.hedged.read.threadpool.size" = "128",
"dfs.client.hedged.read.threshold.millis" = "500",
...
);
```
It is redundant to set these configs at BE side, and it will brings an occasional bug at #25093 .
- fix when modifying comments in property, it will modify the comments in the catalog
- add `alter catalog modify comment` to modify comment for catalog
- abstract some logic of `alter catalog` to parent class
