# Database Trends

Published articles for Database Trends.

This is one page of public article previews, not the complete archive. Follow Next page to continue. Summaries are not the original full articles.

## Group Replication Beyond a Single Cluster: DC-DR with Percona (PS MySQL) Operator

DevFeed: [Group Replication Beyond a Single Cluster: DC-DR with Percona (PS MySQL) Operator](<https://devfeed.tech/articles/group-replication-beyond-a-single-cluster-dc-dr-with-percona-ps-mysql-operator-35041.md>)

Original publisher: [Read original article](<https://www.percona.com/blog/group-replication-beyond-a-single-cluster-dc-dr-with-percona-ps-mysql-operator/>)

Author: Anil Joshi

Published: 2026-09-17T06:43:32Z

Content type: tutorial

Language: en

Sources: [Blog - Percona](<https://devfeed.tech/sources/blog-percona.md>)

Topics: [Replication](<https://devfeed.tech/topics/replication.md>), [export](<https://devfeed.tech/topics/export.md>), [Percona Server for MySQL](<https://devfeed.tech/topics/percona-server-for-mysql.md>), [configuration](<https://devfeed.tech/topics/configuration.md>), [Server](<https://devfeed.tech/topics/server.md>), [Kubernetes](<https://devfeed.tech/topics/kubernetes.md>), [Database](<https://devfeed.tech/topics/database.md>)

Tags: [cloud](<https://devfeed.tech/tags/cloud.md>), [configuration](<https://devfeed.tech/tags/configuration.md>), [database-trends](<https://devfeed.tech/tags/database-trends.md>), [featured](<https://devfeed.tech/tags/featured.md>), [innodb-clusterset](<https://devfeed.tech/tags/innodb-clusterset.md>), [insight-for-dbas](<https://devfeed.tech/tags/insight-for-dbas.md>), [kubernetes](<https://devfeed.tech/tags/kubernetes.md>), [kubernetes-operators](<https://devfeed.tech/tags/kubernetes-operators.md>), [mysql](<https://devfeed.tech/tags/mysql.md>), [mysql-group-replication](<https://devfeed.tech/tags/mysql-group-replication.md>), [mysql-high-availability](<https://devfeed.tech/tags/mysql-high-availability.md>), [mysql-replication](<https://devfeed.tech/tags/mysql-replication.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [operator](<https://devfeed.tech/tags/operator.md>), [percona-kubernetes-operators](<https://devfeed.tech/tags/percona-kubernetes-operators.md>), [percona-operator-for-mysql](<https://devfeed.tech/tags/percona-operator-for-mysql.md>), [percona-server-for-mysql](<https://devfeed.tech/tags/percona-server-for-mysql.md>), [percona-software](<https://devfeed.tech/tags/percona-software.md>), [replication](<https://devfeed.tech/tags/replication.md>), [uncategorized](<https://devfeed.tech/tags/uncategorized.md>), [yaml](<https://devfeed.tech/tags/yaml.md>)

### AI overview

This tutorial explains how to configure cross-site replication between two Percona Operator for MySQL clusters to create a ClusterSet environment for disaster recovery and switchover between data-center and disaster-recovery members. It covers deploying the clusters, retrieving endpoints and cluster names, transferring credentials, and initializing the DR cluster.

### Source excerpt

A while ago, we discussed the cross-site replication feature of the Percona PXC operator. Recently, a similar cross-site replication feature was introduced in the Percona (PS MySQL) operator v1.2.0, a topology based on Group Replication/InnoDB Cluster. In this blog post, we will explore how to add a DR Cluster to an existing DC Cluster to ... Continued The post Group Replication Beyond a Single Cluster: DC-DR with Percona (PS MySQL) Operator appeared first on Percona.

## Percona and HexaCluster: Faster, Safer Oracle Migration

DevFeed: [Percona and HexaCluster: Faster, Safer Oracle Migration](<https://devfeed.tech/articles/percona-and-hexacluster-faster-safer-oracle-migration-26240.md>)

Original publisher: [Read original article](<https://www.percona.com/blog/percona-and-hexacluster-faster-safer-oracle-migration/>)

Author: Percona Team

Published: 2026-09-14T22:19:16Z

Content type: article

Language: en

Sources: [Blog - Percona](<https://devfeed.tech/sources/blog-percona.md>)

Topics: [Oracle Database](<https://devfeed.tech/topics/oracle-database.md>), [migration](<https://devfeed.tech/topics/migration.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>), [PostgreSQL](<https://devfeed.tech/topics/postgresql.md>), [Database Migration](<https://devfeed.tech/topics/database-migration.md>), [Replication](<https://devfeed.tech/topics/replication.md>), [Tooling](<https://devfeed.tech/topics/tooling.md>)

Tags: [database](<https://devfeed.tech/tags/database.md>), [database-migration](<https://devfeed.tech/tags/database-migration.md>), [database-trends](<https://devfeed.tech/tags/database-trends.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [insight-for-dbas](<https://devfeed.tech/tags/insight-for-dbas.md>), [insight-for-developers](<https://devfeed.tech/tags/insight-for-developers.md>), [migration](<https://devfeed.tech/tags/migration.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [oracle](<https://devfeed.tech/tags/oracle.md>), [partners](<https://devfeed.tech/tags/partners.md>), [percona](<https://devfeed.tech/tags/percona.md>), [postgresql](<https://devfeed.tech/tags/postgresql.md>), [replication](<https://devfeed.tech/tags/replication.md>), [schema](<https://devfeed.tech/tags/schema.md>), [sql](<https://devfeed.tech/tags/sql.md>), [tooling](<https://devfeed.tech/tags/tooling.md>), [validation](<https://devfeed.tech/tags/validation.md>)

### AI overview

Percona and HexaCluster describe a partnership for moving organizations from Oracle, SQL Server, DB2, and Sybase ASE to supported open source databases, primarily PostgreSQL. HexaCluster provides assessment and migration engineering through DMAT and HexaRocket, while Percona provides distributions, operators, and long-term support. HexaRocket combines schema migration, data migration, validation, change data capture, live replication, and reverse replication in one platform.

### Source excerpt

Percona and HexaCluster have partnered to remove the hardest part of an open source database migration: getting off Oracle, SQL Server, DB2 or Sybase ASE with confidence, on a predictable timeline, without a multi-year consulting program. Percona brings open source expertise, its own distributions, operators and enterprise support. HexaCluster brings the assessment and migration engineering ... Continued The post Percona and HexaCluster: Faster, Safer Oracle Migration appeared first on Percona.

## Benchmarking vector indexes

DevFeed: [Benchmarking vector indexes](<https://devfeed.tech/articles/benchmarking-vector-indexes-14092.md>)

Original publisher: [Read original article](<https://www.percona.com/blog/benchmarking-vector-indexes/>)

Author: Evgeniy Patlan

Published: 2026-08-27T13:35:32Z

Content type: article

Language: en

Sources: [Blog - Percona](<https://devfeed.tech/sources/blog-percona.md>)

Topics: [benchmarking](<https://devfeed.tech/topics/benchmarking.md>), [Ground truth / benchmark quality](<https://devfeed.tech/topics/ground-truth-benchmark-quality.md>), [Databases](<https://devfeed.tech/topics/databases.md>), [ann](<https://devfeed.tech/topics/ann.md>), [datasets](<https://devfeed.tech/topics/datasets.md>), [Sorting](<https://devfeed.tech/topics/sorting.md>)

Tags: [ai-vector](<https://devfeed.tech/tags/ai-vector.md>), [ann](<https://devfeed.tech/tags/ann.md>), [benchmark](<https://devfeed.tech/tags/benchmark.md>), [benchmarking](<https://devfeed.tech/tags/benchmarking.md>), [benchmarks](<https://devfeed.tech/tags/benchmarks.md>), [blog](<https://devfeed.tech/tags/blog.md>), [blog-post](<https://devfeed.tech/tags/blog-post.md>), [data](<https://devfeed.tech/tags/data.md>), [database-performance](<https://devfeed.tech/tags/database-performance.md>), [database-trends](<https://devfeed.tech/tags/database-trends.md>), [databases](<https://devfeed.tech/tags/databases.md>), [datasets](<https://devfeed.tech/tags/datasets.md>), [embeddings](<https://devfeed.tech/tags/embeddings.md>), [index](<https://devfeed.tech/tags/index.md>), [measurements](<https://devfeed.tech/tags/measurements.md>), [model](<https://devfeed.tech/tags/model.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [percona](<https://devfeed.tech/tags/percona.md>), [points](<https://devfeed.tech/tags/points.md>), [report](<https://devfeed.tech/tags/report.md>), [run](<https://devfeed.tech/tags/run.md>), [search](<https://devfeed.tech/tags/search.md>), [sorting](<https://devfeed.tech/tags/sorting.md>), [vector-search](<https://devfeed.tech/tags/vector-search.md>), [vectorsearch](<https://devfeed.tech/tags/vectorsearch.md>)

### AI overview

This article explains how Percona's vector-bench measures vector indexes by building database engines from pinned versions, running them in identical containers with the same data and hardware, and comparing consistent measurements. It describes embeddings, exact search, approximate nearest neighbour search, and ground truth as the brute-force reference needed to evaluate index accuracy.

### Source excerpt

Nearly every database has vector search now, and every one of them has a blog post with a big number in it. Almost none of those numbers can be checked, because the thing that makes them meaningful is usually missing. We built a vector-bench to stop guessing. You name the engines you want, build them ... Continued The post Benchmarking vector indexes appeared first on Percona.

## Navigating the Walled Gardens of PostgreSQL: Hidden Risks of Postgres Vendor Lock-in

DevFeed: [Navigating the Walled Gardens of PostgreSQL: Hidden Risks of Postgres Vendor Lock-in](<https://devfeed.tech/articles/navigating-the-walled-gardens-of-postgresql-hidden-risks-of-postgres-vendor-lock-in-14100.md>)

Original publisher: [Read original article](<https://www.percona.com/blog/migrating-postgres-solving-a-puzzle-that-shouldnt-be-hard/>)

Author: Robert Bernier

Published: 2026-08-26T14:07:50Z

Content type: opinion

Language: en

Sources: [Blog - Percona](<https://devfeed.tech/sources/blog-percona.md>)

Topics: [PostgreSQL](<https://devfeed.tech/topics/postgresql.md>), [vendor lock-in](<https://devfeed.tech/topics/vendor-lock-in.md>), [Database Migration](<https://devfeed.tech/topics/database-migration.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [database-migration](<https://devfeed.tech/tags/database-migration.md>), [database-trends](<https://devfeed.tech/tags/database-trends.md>), [insight-for-dbas](<https://devfeed.tech/tags/insight-for-dbas.md>), [insight-for-developers](<https://devfeed.tech/tags/insight-for-developers.md>), [migration](<https://devfeed.tech/tags/migration.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [postgres](<https://devfeed.tech/tags/postgres.md>), [postgresql](<https://devfeed.tech/tags/postgresql.md>), [vendor-lock-in](<https://devfeed.tech/tags/vendor-lock-in.md>)

### AI overview

The article examines how commercial ecosystems built around PostgreSQL can create walled-garden effects and constrain the portability of PostgreSQL-compatible systems. It highlights migration complexity, switching costs, and potential data-integrity risks when leaving such ecosystems.

### Source excerpt

These days there's been a lot of talk about Postgres having an impact on "everything". Whether it's replacing legacy systems, creating a new greenfield project or even implementing it as a back-end to an agentic AI, Postgres is today's poster child for innovation. So performing something as dull and straightforward as a database migration should ... Continued The post Navigating the Walled Gardens of PostgreSQL: Hidden Risks of Postgres Vendor Lock-in appeared first on Percona.