Kidong LeeDistributed Lock for Iceberg in ChangoEverytime iceberg table is committed, many files will be created like data files, metadata files, and snapshots. Even if iceberg supports…Aug 17Aug 17
Kidong LeeQuery Audit in ChangoAll the queries executed by query engines like Chango Trino Gateway, Chango Spark Thrift Server and Chango Spark SQL Runner in Chango will…Aug 8Aug 8
Kidong LeeRun Spark SQL ETL Jobs with Azkaban in ChangoTrino ETL queries can be run through REST simply with Chango Query Exec in Chango as I mentioned in the previous article. In addition…Aug 8Aug 8
Kidong LeeRun Trino ETL Jobs with Azkaban in ChangoTrino ETL queries can be sent to Chango Query Exec through REST to run ETL query jobs in trino with ease. So Chango Query Exec is more…Jul 29Jul 29
Kidong LeeResource Groups in Chango Trino GatewayResource Groups is used to limit resources of trino cluster with the configurations like maximum number of running queries and queued…Jul 28Jul 28
Kidong LeeAutomatic Iceberg Table Maintenance in ChangoEverytime data committed to iceberg tables, many files will be created like data files, snapshots, metadata files which should be…Jun 21Jun 21
Kidong LeeinDev GeniusLoad Files to Iceberg Table using SQL in ChangoIt is not easy to load files to iceberg tables. In order to load such as files to iceberg tables, for example, you need to develop spark…Jun 12Jun 12
Kidong LeeHidden Partitioned Iceberg Table in ChangoThere are some ways to create hidden partitioned iceberg tables in Chango. You can create them with trino, but trino does not support all…May 31May 31
Kidong LeeMaintain Iceberg Tables in ChangoEverytime committing data to iceberg tables, many files will be created like metadata, snapshots which need to be maintained, for example…Apr 25Apr 25
Kidong LeeinTowards DevData Transformation using Chango Query ExecIf you want to transform data in data lakehouses, you may use query engines such as trino. For example, you can move table data from…Dec 29, 2023Dec 29, 2023