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Creates a new node or relationship if it does not exist, or matches and updates an existing one, ensuring uniqueness.
Distinct from Graph Node Merging: Distinct from Graph Node Merging: extends merging to entire graph patterns including relationships, not just single vertices.
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Apache AGE is a graph database extension for PostgreSQL that adds openCypher graph query capabilities directly within the relational database environment. It functions as a loadable extension that translates Cypher graph traversal queries into SQL expressions, enabling users to run pattern matching and path analysis alongside standard SQL operations within a single database instance. The extension stores labeled, directed property graphs as isolated schemas with internal relational tables for vertices, edges, and labels, preventing cross-graph interference. It supports hybrid query execution
Ships a MERGE clause that creates or matches entire graph patterns including relationships.