copying from one redshift cluster to another

Your Amazon Elastic Compute Cloud (Amazon EC2) instance. This will 'extract' the schema for a table and give you the SQL DDL commands that can be used to create the table in another Amazon Redshift cluster. Instead, I think you could ( Use Amazon Redshift as a source for AWS Schema Conversion Tool. Before you begin, modify the postgresqlRDS-to-Redshift-definition.json file with the following: Your database. 1 Answer Sorted by: 0 LOAD and UNLOAD does not define/copy a schema. Use the PostgresqlRdsToRedshift scripts from the AWSLabs GitHub repository. The README in this GitHub repo walks you through the setup and use of the tool. Copy an Amazon RDS for PostgreSQL table to an Amazon Redshift table. Loads data in parallel using Data Sharing.This includes ownership, user grants, group grants, and default privileges. Migrates the permissions for schemas, tables, functions, procedures, views, and materialized views.Creates schemas, tables (with primary and foreign keys), functions, procedures, views, and materialized views.It also assigns the users to the groups based on the source permissions.

Creates users and groups missing on the target. Data sharing, which was in preview since late 2020, enables Redshift users to instantaneously share data between clusters without having to copy or move data from one cluster to another.This solution makes the 'Producer' (source) data available on the 'Consumer' (target) to be ingested. This focuses on moving data only.Īnother solution is to use a new utility developed in collaboration with a customer that utilizes Amazon Redshift Data Sharing. The DATETRUNC function in Google BigQuery and Amazon RedshiftThe DATETRUNC. This will unload the data in question to S3 and then load the data using COPY. One solution would be: first, move the shift times by 3 hours forward, so. One solution is to use AWS Schema Conversion Tool to migrate the objects from one Redshift to another. This can be achieved by restoring a snapshot to a new Redshift Cluster or Redshift Serverless Workgroup and then simply removing the databases you don't need.īut what about consolidating databases? What if you want to merge two different databases to a single Redshift deployment? How can you move just a single database from one Redshift deployment (Cluster or Serverless) to another? This could be to better track costs and deploy a small Redshift Serverless workgroup for each development group. Another use case could be having multiple development databases in one single Redshift deployment.Įventually, you may want to separate databases to different deployments. In this example, 'redshift-cluster-2' has a database named dev with schemas admin, blanks, and dev_schema_1.Ī use case for multiple databases is for multiple tenants where you want to keep each tenant’s data separate from one another. Each schema can then have multiple tables, views, stored procedures, or other database objects.

Amazon Redshift supports multiple databases in a single deployment and each database can have multiple schemas.

Copying from one redshift cluster to another