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Posts tagged postgres

Knowledge Graphs

While reading the comments of Show HN: Sourcebot – Self-hosted Perplexity for your codebase | Hacker News I stumbled upon getzep/graphiti: Build Real-Time Knowledge Graphs for AI Agents, which seems to have openrouter support and uses Neo4j or FalkorDB graph databases.

What does your AI Agent [1] need a knowledge graph database for? It give AI agents a way to remember and structure knowledge. You can give that knowledge by loading (ETL) documents into a database beforehand, or you can let the LLM write knowledge for you (“remember …”).

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Postgres Recursive Query

Suppose we have a hierarchy of industries:

root1

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TIL: Postgres Replication Slots

Replica liest WAL-Segmente. Primary räumt WAL-Segmente auf:

the server might recycle old WAL segments before the standby has received them [1]

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