Apache Calcite
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A green key on the record, left, is one Decision Insights added. It doesn't exist on the company's site or in a wire feed. The same key labels its row on the right, so you can match them directly. More on how DI enriches a record.
The record
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"dateModified": "2026-08-27T03:10:34Z",
"description": "Apache Calcite is a framework for SQL parsing, optimization, and query virtualization embedded in data platforms and query engines.",
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What we add
Topic graph
A wire service tags a release with a category, once. It doesn't maintain a durable graph over time. We connect them to a topic graph an agent can query.
Data Center https://decisioninsights.ai/term/data-center/
Storage https://decisioninsights.ai/term/sd-storage/
Database https://decisioninsights.ai/term/database/
and 4 more
Counted facts
A protocol or open source project keeps no vendor list and publishes no figures of its own to check this against. This counts how it actually shows up across the graph -- articles that name it, the organizations named alongside it in those articles, similar projects, and organizations whose topic tags overlap with its own -- computed, not curated.
Related projects Apache CarbonData, Apache Impala, Apache Kylin, Apache Ignite, Apache Tajo, Apache DataFusion, Apache Accumulo, Apache Drill
Related organizations PrestoDB, rqlite, PostgreSQL, DoltHub, StarRocks, Crate.io, PingCAP, Quest Software