Yang, Tong 48706b7552 MRS COMP-LTS 320-lts.1 version

Reviewed-by: Kacur, Michal <michal.kacur@t-systems.com>
Co-authored-by: Yang, Tong <yangtong2@huawei.com>
Co-committed-by: Yang, Tong <yangtong2@huawei.com>

2024-04-12 12:51:10 +00:00

6.1 KiB

Raw Permalink Blame History

Hudi CLUSTERING

Function

Performs the clustering operation on Hudi tables. For details, see Clustering.

Syntax

Creating a savepoint:
call run_clustering(table=>'[table]', path=>'[path]', predicate=>'[predicate]', order=>'[order]');
Performing clustering:
call show_clustering(table=>'[table]', path=>'[path]', limit=>'[limit]');

Parameter Description

**Table 1** Parameters
Parameter	Description	Mandatory
table	Name of the table to be queried. The value can be in the database.tablename format.	No
path	Path of the table to be queried	No
predicate	Predicate sentence to be defined	No
order	Sorting field for clustering	No
limit	Number of query results to display	No

Example

call show_clustering(table => 'hudi_table1');

call run_clustering(table => 'hudi_table1', predicate => '(ts >= 1006L and ts < 1008L) or ts >= 1009L', order => 'ts');

Precautions

Either table or path must exist. Otherwise, the Hudi table to be clustered cannot be determined.

System Response

You can view query results on the client.

Parent topic: CALL COMMAND

6.1 KiB Raw Permalink Blame History