#Azure postgresql vs aws postgresql how to#
#Azure postgresql vs aws postgresql series#

#Azure postgresql vs aws postgresql series#

If you have any feedback please do not hesitate to provide it in the comment section below.This is the 4th and last part in the series Benchmarking Managed PostgreSQLCloud Solutions. Note:- After migration is complete, you might need to re-enable the triggers and create foreign keys. Note:- You will need to make sure the connectivity between the source single server and DMS service on one side and the DMS service and the target flexible server on the other side.ĭetails steps: Tutorial: Migrate PostgreSQL to Azure DB for PostgreSQL online via the Azure portal - Azure Database.Ĥ- Monitoring the migration project progress and you can perform the migration once it’s ready for cutover You will need to use PostgreSQL as source server type and provide the single server endpoint and credentials. More details in Tutorial: Migrate PostgreSQL to Azure Database for PostgreSQL online via the Azure CLI - Azure Datab. Provision Database Migration Service and create a migration task SELECT DISTINCT CONCAT('ALTER TABLE ', event_object_schema, '.', event_object_table, ' DISABLE TRIGGER ', trigger_name, ' ') So you don't need to manually disable it. As a result, you do not have to worry about making any modifications to the target database schema. The migration service internally handles the enable/disable of foreign keys and triggers to ensure a reliable and robust data migration. Disable triggers at target Azure Database for PostgreSQL GROUP BY S.table_schema, S.foreignkey, S.table_name, S.foreign_table_schema, S.foreign_table_name JOIN information_nstraint_column_usage AS ccu ON ccu.constraint_name = tc.constraint_name AND ccu.table_schema = tc.table_schema JOIN information_schema.key_column_usage AS kcu ON tc.constraint_name = kcu.constraint_name AND tc.table_schema = kcu.table_schema STRING_AGG(DISTINCT S.foreign_column_name, ',') AS foreign_column_nameĬcu.table_schema AS foreign_table_schema,įROM information_schema.table_constraints AS tc STRING_AGG(DISTINCT S.column_name, ',') AS column_name, ,CONCAT('ALTER TABLE ', table_schema, '.', table_name, STRING_AGG(DISTINCT CONCAT(' ADD CONSTRAINT ', foreignkey, ' FOREIGN KEY (', column_name, ')', ' REFERENCES ', foreign_table_schema, '.', foreign_table_name, '(', foreign_column_name, ')' ), ','), ' ') as AddQuery

,CONCAT('ALTER TABLE ', table_schema, '.', table_name, STRING_AGG(DISTINCT CONCAT(' DROP CONSTRAINT ', foreignkey), ','), ' ') as DropQuery Remove foreign keys in schema at target Azure Database for PostgreSQL Psql -h hostname -U db_username -d db_name < your_schema.sql Import the schema into the target database Pg_dump -o -h hostname -U db_username -d db_name -s > your_schema.sql on the source, create a schema dump file for a database

You will need to migrate database schema from source to target using commands: the user must have 'userepl' privilege, if replication not granted, you can grant it as follows:Ģ- Prepare the target for the migration - Flexible Server

max_wal_senders = - The max_wal_senders parameter sets the number of concurrent tasks that can run, recommend setting to 10 tasks max_replication_slots =, recommend setting to 5 slots parameter wal_level should be logical, on Azure PgSQL this can be done from Azure Portal as shown blow: You will need to set some Postgresql Parameters on the source as follows: See this documentation GitHub - shriram-muthukrishnan/single-to-flex on using the feature and the associated pre-requisites and limitations.ġ – Prepare the Source – Azure PostgreSQL - Single Server Note: Azure recently launched a preview of Single-to-Flexible Server migration feature providing zero cost, automated and friction-free migrations. Important - Azure Database for PostgreSQL - Flexible Server is now on general availability.

#Azure postgresql vs aws postgresql how to#

In this article, we will provide a guideline on how to leverage Azure DMS for seamless and simplified migrations of your database from Azure PostgreSQL Single Server to Azure PostgreSQL Flexible Server with minimal downtime. With Flexible Server, you will also have a new way to optimize cost with stop/start capabilities. Azure Database for PostgreSQL recently announced Flexible Server, Flexible Server is a new deployment option for Azure Database for PostgreSQL that gives you the control you need with multiple configuration parameters for fine-grained database tuning along with a simpler developer experience to accelerate end-to-end deployment.