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This was referenced Nov 6, 2026
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Document entities currently have an empty metadata message. Define collection identity, inferred field paths/types/optionality, an optional JSON sample, and available document indexes using the existing Entity oneof and the requested field numbers.
Comments distinguish observations from an enforced schema, specify escaped literal field-path separators, and document conservative per-field uniqueness for compound indexes. Python contract tests compile the actual protocol and cover every field, serialization, optional presence, the Entity oneof, and legacy readers. A dedicated GitHub Actions workflow runs them.
Validation: 5 Python contract tests passed locally and in GitHub Actions. Companion validation: full Java server/plugin build, 10 Java tests, and 15 live Python tests against HSQLDB-backed document collections and real MongoDB indexes all passed.
Companions: polypheny/Polypheny-DB#576 and polypheny/Polypheny-Connector-Python#4.
This PR does not publish a release. Companion builds pin this protocol revision and overlay only namespace metadata onto Prism 1.9 to preserve its existing value wire format.
Final GitHub validation: 2/2 checks successful on
ac57da2459071234c4cacc6836e3f4ca6f13f101; no pending or failed checks.JDBC 3.x companion: polypheny/Polypheny-JDBC-Driver#21.