Greenplum Database vs IBM Db2
Greenplum Database
greenplum.org
IBM Db2
ibm.comSide by side
| Figure | Greenplum Database | IBM Db2 |
|---|---|---|
| Price from | Free | $630/mo |
| Free plan | Yes | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| Linux | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 2 | 7 |
| Spec score · Data Warehouse Software | 8.1 (#7) | 8.3 (#5) |
| Spec score · Analytical Data Store Software | 8.1 (#10) | 8.3 (#7) |
| Spec score · Analytics Data | 8.2 (#11) | 8.4 (#7) |
| Spec score · Analytics Databases | 8.2 (#12) | 8.4 (#8) |
| Spec score · OLAP Software | 8.1 (#14) | 8.3 (#9) |
| Integrations | The maker describes streaming ingestion with Tanzu Greenplum Streaming Server on Kubernetes and a certified standalone Apache NiFi connector for Greenplum 7. | IBM documents connections through drivers and integrations with DataStage, Segment, Cognos Analytics, Looker, Tableau, Excel, SPSS Statistics, SAS, and R. |
| Purpose | Greenplum Database is an open-source, PostgreSQL-based data warehouse for analytics, machine learning, and AI. | IBM describes Db2 as an AI-powered database for low-latency transactions, real-time analytics, and mission-critical workloads. |
| Query optimization | GPORCA is a cost-based optimizer used alongside the PostgreSQL planner. | Db2 uses AI-powered query optimization to automate performance tuning and adapt execution plans from historical query patterns. |
| Security | The maker states Tanzu Greenplum uses STIG hardening and FIPS 140-3 cryptographic modules for encryption at rest and in transit. | IBM describes access controls, encryption for data in motion and at rest, behavior monitoring, and data masking features for Db2. |
| Support | The project repository directs users to online documentation and its wiki for further information. | The pricing page lists Community Support for Db2 AI Community and Enterprise Support for Db2 AI Standard and AI Advanced. |
| Workloads | The architecture is designed for large-scale analytical data warehouses and business intelligence workloads. | Db2 runs transactional, analytical, and operational workloads against the same database and can feed data to Db2 Warehouse and watsonx.data. |
Plans
Greenplum Database
- Greenplum Database (open source)Free
- VMware Tanzu GreenplumPriced on request
IBM Db2
- FreeFree
- Performance$630 a month
- Db2 AI CommunityFree
- Db2 Database SaaS FreeFree
- Db2 Database SaaS Performance$630 a month
- Db2 AI AdvancedPriced on request
- Db2 AI StandardPriced on request
In their own words
Greenplum Database
Greenplum Database is a PostgreSQL-based, open-source data warehouse for analytics, machine learning, and AI. Its architecture spreads data and query work across a cluster: a coordinator divides queries among segment servers. The project describes it for large analytical warehouses and business intelligence, including petabyte-scale data. Query planning can use GPORCA alongside the PostgreSQL-based planner. Storage options include append-optimized row and column formats, with compression for column storage. PXF connectors connect to Hadoop, object stores including Azure, Google Cloud Storage, MinIO, and S3, and SQL databases through JDBC. External tables can be queried or used to load outside data; PXF also supports querying Apache Iceberg foreign tables. Clients can connect through psql, ODBC, or JDBC. Greenplum is available as a free open-source project under Apache 2, while the commercial VMware Tanzu Greenplum offering is priced on request. It supports on-premises deployment and data lakes. Documented access control covers object privileges; row-level and column-level access controls are not supported.
IBM Db2
IBM Db2 is a database for low-latency transactions, real-time analytics, and mission-critical workloads. It supports transactional, analytical, and operational work on the same database and can feed Db2 Warehouse and watsonx.data. AI-powered query optimization uses historical query patterns to adjust execution plans and automate tuning. Db2 12.1.2.0 adds a VECTOR type and SQL vector-distance queries for semantic search, retrieval-augmented generation, and recommendation systems. Db2 pureScale supports continuous availability on premises or in the cloud, with Pacemaker integration. Security features include access controls, encryption in transit and at rest, behavior monitoring, and data masking. IBM documents integrations with DataStage, Segment, Cognos Analytics, Looker, Tableau, Excel, SPSS Statistics, SAS, and R. Supported deployments include self-hosting and Amazon RDS for Db2. Free plans are available; Performance is listed at $630 a month, billed hourly.