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Posts tagged #postgres
Fix n8n Postgres Query Parameters Splitting on Commas (GH #40022 Guide)
n8n's Postgres node splits query parameter values on commas, turning 'Doe, John' into two bind values. Root cause in stringToArray plus 3 exact fixes.
Fix Duplicate Orders and Charges from Webhook Retries in n8n (Idempotency Gate Pattern)
Webhook retries make n8n charge customers twice. Build an idempotency gate: Postgres UNIQUE event table + stable idempotency keys.
How to Add Long-Term Memory to n8n Chatbots (Postgres & Redis Guide)
Stop your n8n chatbot from forgetting everything. Set up Postgres or Redis chat memory with session keys, context windows, TTL and a summarization pattern.