Robert Helewka
7859264359
- Introduced `neo4j-schema-init.py` for creating the foundational schema for the personal knowledge graph used by multiple AI assistants. - Implemented functionality for creating constraints, indexes, and sample nodes, along with comprehensive testing of the schema. - Added `neo4j-validate.py` to perform validation checks on the Neo4j knowledge graph, including constraints, indexes, sample nodes, relationships, and junk data detection. - Enhanced logging for better traceability and debugging during schema initialization and validation processes.
19 lines
744 B
Markdown
19 lines
744 B
Markdown
## Neo4j Version Compatibility Notes
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Neo4j had significant breaking changes between version 4.x and 5.x regarding schema introspection:
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**Neo4j 5.x+ (current):**
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- Use `SHOW INDEXES` instead of `CALL db.indexes()`
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- Use `SHOW CONSTRAINTS` instead of `CALL db.constraints()`
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- Use `CALL db.schema.visualization()` for full schema (works in both versions)
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**Neo4j 4.x and earlier:**
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- Use `CALL db.indexes()`
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- Use `CALL db.constraints()`
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**Safe queries that work across versions:**
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- `CALL db.schema.visualization()` - Full schema visualization
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- `CALL db.labels()` - Get all node labels
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- `CALL db.relationshipTypes()` - Get all relationship types
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When querying indexes or constraints, prefer the `SHOW` commands for Neo4j 5+ environments. |