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Avinash Vallarapu

Avinash Vallarapu

CEO and Co-founder

Avi is the CEO and Co-founder of HexaCluster. Avi has a rich background in PostgreSQL, development, and machine learning. Before joining HexaCluster, he co-founded MigOps, a company dedicated to facilitating migrations to Open-Source databases like PostgreSQL. His journey in the PostgreSQL domain started at Dell followed by OpenSCG as a Database Architect and later joined Percona to start the PostgreSQL practice. Avi loves contributing to PostgreSQL, speaking at PostgreSQL conferences and writing PostgreSQL books.

All Blogs by Avinash Vallarapu

Tuning PostgreSQL HOT Updates - A HammerDB Benchmark

postgresqlPostgresPerformance-Tuning

Vacuum is not a problem as we can help PostgreSQL avoid it with HOT updates. A HammerDB TPROC-C benchmark shows how tuning fillfactor for tables eliminates vacuum and reduces the bloat growth.

Vacuum is not a problem as we can help PostgreSQL avoid it with HOT updates. A HammerDB TPROC-C benchmark show...

Avinash Vallarapu
•Aug 05, 2026

Announcing HexaBridge for SQL Server: T-SQL Compatibility on Community PostgreSQL

SQL ServerHexaCluster ProductsPostgreSQL ContributionsAnnouncement

HexaBridge for SQL Server extends standard PostgreSQL with native SQL Server compatibility, reducing manual code changes and making SQL Server to PostgreSQL migrations faster, simpler, and more reliable.

HexaBridge for SQL Server extends standard PostgreSQL with native SQL Server compatibility, reducing manual co...

Avinash Vallarapu
•Jun 30, 2026

Migrating Sybase ASE aka SAP ASE to PostgreSQL

postgresqlSybaseSAP ASEHexaRocket

Legacy Sybase ASE/SAP ASE databases are still powering mission-critical OLTP workloads, but modernization pressure keeps rising. Witness the differences between SAP ASE and PostgreSQL, and the migration path to PostgreSQL.

Legacy Sybase ASE/SAP ASE databases are still powering mission-critical OLTP workloads, but modernization pres...

Avinash Vallarapu
•Jan 28, 2026

Send Emails like Oracle UTL_SMTP using pg_utl_smtp for PostgreSQL

postgres_extensionspostgresqlOracle Compatibility

As part of its automated migration solution, HexaRocket, to simplify Enterprise-grade Oracle to PostgreSQL database migrations, HexaCluster is pleased to announce pg_utl_smpt PostgreSQL extension to create Oracle UTL_SMTP compatibility.

As part of its automated migration solution, HexaRocket, to simplify Enterprise-grade Oracle to PostgreSQL dat...

Avinash Vallarapu
•Jan 22, 2026

Contributions to PostgreSQL by HexaCluster in 2025

postgresqlDatabase Migration

Building on a strong foundation in 2024, 2025 has been a year of acceleration, scale, and enterprise impact for HexaCluster’s PostgreSQL initiatives.

Building on a strong foundation in 2024, 2025 has been a year of acceleration, scale, and enterprise impact fo...

Avinash Vallarapu
•Jan 14, 2026

Full and Incremental Backup using pg_basebackup and pg_combinebackup in PostgreSQL

postgresqlpg_basebackuppg_combinebackupFull Backup

PostgreSQL is a robust open-source database that supports online physical backups, advanced backup techniques, and point-in-time recovery for enterprise-grade reliability.

PostgreSQL is a robust open-source database that supports online physical backups, advanced backup techniques,...

Avinash Vallarapu
•Nov 12, 2025

Streaming Replication Internals for High Availability in PostgreSQL

postgresqlHigh AvailabilityReplication

High Availability of databases is one of major Enterprise-grade features required by any Organization. It is important that databases are always accessible, minimizing downtime and maintaining business continuity.

High Availability of databases is one of major Enterprise-grade features required by any Organization. It is i...

Avinash Vallarapu
•Mar 06, 2025

Contributions to PostgreSQL by HexaCluster in 2024

postgresql

The team at HexaCluster is back with its list of contributions to PostgreSQL in 2024. Our Technical team, led by our CTO, Gilles Darold, continues to drive advancements that facilitate migrations to PostgreSQL.

The team at HexaCluster is back with its list of contributions to PostgreSQL in 2024. Our Technical team, led ...

Avinash Vallarapu
•Jan 15, 2025

Summary of PostgreSQL in 2024

postgresql

HexaCluster is back with its Summary of PostgreSQL in 2024 like our article in 2023. We would first like to thank all PostgreSQL Users, Contributors, Organizations, and Sponsors who have directly or indirectly contributed to an exponential growth, ye

HexaCluster is back with its Summary of PostgreSQL in 2024 like our article in 2023. We would first like to th...

Avinash Vallarapu
•Jan 09, 2025

PostgreSQL Minor version updates announced - May 2024

postgresql

The PostgreSQL Global Development Group has announced minor version updates to all supported PostgreSQL versions: 16, 15, 14, 13, and 12. These minor version updates introduce over 55 bug fixes that have been reported in recent months, reflecting Pos

The PostgreSQL Global Development Group has announced minor version updates to all supported PostgreSQL versio...

Avinash Vallarapu
•May 09, 2024

Announcing PGDSAT to satisfy CIS benchmarks for PostgreSQL

postgresqlPGDSATSecurity

In an era where data breaches are both costly and damaging to reputations, implementing best practices and robust security measures is crucial. PostgreSQL has emerged as one of the most successful and highly adopted open-source databases, competing w

In an era where data breaches are both costly and damaging to reputations, implementing best practices and rob...

Avinash Vallarapu
•Apr 23, 2024

PostgreSQL Summary and Achievements in 2023

postgresqlDatabase

Our team at HexaCluster likes to extend our heartfelt thanks to the vibrant community of Users, IT leaders, Contributors and the who made PostgreSQL what it is today. Your passion and support have made PostgreSQL a versatile and robust database syste

Our team at HexaCluster likes to extend our heartfelt thanks to the vibrant community of Users, IT leaders, Co...

Avinash Vallarapu
•Jan 02, 2024