# \#postgres **URL:** https://community.n8n.io/tag/postgres/98.md [Latest](https://community.n8n.io/latest.md) · [Categories](https://community.n8n.io/categories.md) · [Tags](https://community.n8n.io/tags.md) --- ## [AI-Powered Freelance Opportunity Aggregator — n8n + PostgreSQL + LLM Pipeline](https://community.n8n.io/t/ai-powered-freelance-opportunity-aggregator-n8n-postgresql-llm-pipeline/322883)
**Author:** [@AlexandraKatina](https://community.n8n.io/u/AlexandraKatina)\ **Replies:** 9\ **Last updated:** [October 23, 2026, 1:14pm UTC](https://community.n8n.io/t/ai-powered-freelance-opportunity-aggregator-n8n-postgresql-llm-pipeline/322883 "2026-10-23T13:14:37Z")
Hey n8n community! :waving\_hand: I recently finished building an AI-Powered Freelance Opportunity Aggregator with n8n as the orchestration layer. The goal was not just to collect job listings, but to build a complet… --- ## [Have you been noticing increased Postgres db connection timeouts lately?](https://community.n8n.io/t/have-you-been-noticing-increased-postgres-db-connection-timeouts-lately/311994)
**Author:** [@Eric\_OConnor](https://community.n8n.io/u/Eric_OConnor)\ **Replies:** 9\ **Last updated:** [October 16, 2026, 12:54am UTC](https://community.n8n.io/t/have-you-been-noticing-increased-postgres-db-connection-timeouts-lately/311994 "2026-10-16T00:54:32Z")
Describe the problem/error/question On the morning of 9/1/26, we upgraded our self-hosted N8N environment to v2.36.7. Later that morning, we started seeing spikes in errors. These errors were caused by timeouts attemptin… --- ## [N8n Cloud → Supabase Postgres: certificate validation fails with “self-signed certificate in certificate chain”](https://community.n8n.io/t/n8n-cloud-supabase-postgres-certificate-validation-fails-with-self-signed-certificate-in-certificate-chain/319237)
**Author:** [@Marcos\_Lopez](https://community.n8n.io/u/Marcos_Lopez)\ **Replies:** 4\ **Last updated:** [October 12, 2026, 1:08pm UTC](https://community.n8n.io/t/n8n-cloud-supabase-postgres-certificate-validation-fails-with-self-signed-certificate-in-certificate-chain/319237 "2026-10-12T13:08:23Z")
Describe the problem/error/question We are connecting from n8n Cloud to Supabase using a Postgres credential. With SSL set to Require and Ignore SSL Issues disabled, the credential connection test fails. We need to kee… --- ## [Import:workflow fails with workflow\_entity.id NOT NULL violation on PostgreSQL 15.19 (n8n 2.38.7)](https://community.n8n.io/t/import-workflow-fails-with-workflow-entity-id-not-null-violation-on-postgresql-15-19-n8n-2-38-7/316735)
**Author:** [@Rock\_and\_roll](https://community.n8n.io/u/Rock_and_roll)\ **Replies:** 10\ **Last updated:** [October 6, 2026, 7:33am UTC](https://community.n8n.io/t/import-workflow-fails-with-workflow-entity-id-not-null-violation-on-postgresql-15-19-n8n-2-38-7/316735 "2026-10-06T07:33:48Z")
Describe the problem/error/question I am running n8n 2.38.7 self-hosted with Docker in queue mode and PostgreSQL 15.19. When I try to import a single inactive workflow using: n8n import:workflow --input=.json the impo… --- ## [Connecting to self hosted supabase's postgres db (docker)](https://community.n8n.io/t/connecting-to-self-hosted-supabases-postgres-db-docker/81361)
**Author:** [@thifcosta](https://community.n8n.io/u/thifcosta)\ **Replies:** 6\ **Last updated:** [September 29, 2026, 3:10pm UTC](https://community.n8n.io/t/connecting-to-self-hosted-supabases-postgres-db-docker/81361 "2026-09-29T15:10:18Z")
Took me a while to figure out how to access my Postgres db from self-hosted Supabase (for chat memory on n8n). I couldn’t find a direct solution for this topic, so I thought this might help others having the same issue. … --- ## [Postgres node NDV panel always cuts off / never finishes loading (n8n Cloud 2.31.6)](https://community.n8n.io/t/postgres-node-ndv-panel-always-cuts-off-never-finishes-loading-n8n-cloud-2-31-6/304771)
**Author:** [@Osher\_Alon](https://community.n8n.io/u/Osher_Alon)\ **Replies:** 2\ **Last updated:** [July 25, 2026, 3:22pm UTC](https://community.n8n.io/t/postgres-node-ndv-panel-always-cuts-off-never-finishes-loading-n8n-cloud-2-31-6/304771 "2026-07-25T15:22:16Z")
I’m on n8n Cloud, release 2.31.6 (Stable track). Every Postgres node I open has its NDV (node detail panel) fail to render completely — see attached screenshot. The Output panel on the right just shows “No o…” / “Exe…… --- ## [Does \`Defined automatically byt he model\` can handle data in nested structure column?](https://community.n8n.io/t/does-defined-automatically-byt-he-model-can-handle-data-in-nested-structure-column/303163)
**Author:** [@ezraluandre](https://community.n8n.io/u/ezraluandre)\ **Replies:** 7\ **Last updated:** [July 15, 2026, 1:39pm UTC](https://community.n8n.io/t/does-defined-automatically-byt-he-model-can-handle-data-in-nested-structure-column/303163 "2026-07-15T13:39:20Z")
Describe the problem/error/question Hi, I use Postgres tool node in my AI agent and the data inside the database table’s column is nested structure. In the Postgres tool node settings I use Tool Description as Set Automa… --- ## [Postgres PGVector Store \[GOT CREATED\]](https://community.n8n.io/t/postgres-pgvector-store-got-created/151319)
**Author:** [@thomasender](https://community.n8n.io/u/thomasender)\ **Replies:** 5\ **Last updated:** [June 5, 2026, 2:46pm UTC](https://community.n8n.io/t/postgres-pgvector-store-got-created/151319 "2026-06-05T14:46:28Z")
Node: Postgres PGVector Store The idea is: Coming from this GitHub issue: Postgres PGVector Store · Issue #15739 · n8n-io/n8n · GitHub I did not create the issue there, but as it has not been opened as a feature reques… --- ## [Practical limits to N8N\_DATA\_TABLES\_MAX\_SIZE\_BYTES in self-hosted+Postgres setup](https://community.n8n.io/t/practical-limits-to-n8n-data-tables-max-size-bytes-in-self-hosted-postgres-setup/297897)
**Author:** [@Tomasz\_Traczyk](https://community.n8n.io/u/Tomasz_Traczyk)\ **Replies:** 7\ **Last updated:** [June 4, 2026, 7:51am UTC](https://community.n8n.io/t/practical-limits-to-n8n-data-tables-max-size-bytes-in-self-hosted-postgres-setup/297897 "2026-06-04T07:51:26Z")
Describe the problem/error/question N8N\_DATA\_TABLES\_MAX\_SIZE\_BYTES is the limit for the total size of all data tables in an n8n instance. The default is 50 MB. I’d like a recommendation on how far it is feasible to inc… --- ## [AI Agent Generates SQL but Stops Executing After 2nd Query](https://community.n8n.io/t/ai-agent-generates-sql-but-stops-executing-after-2nd-query/297175)
**Author:** [@flipflip](https://community.n8n.io/u/flipflip)\ **Replies:** 6\ **Last updated:** [May 28, 2026, 12:13pm UTC](https://community.n8n.io/t/ai-agent-generates-sql-but-stops-executing-after-2nd-query/297175 "2026-05-28T12:13:51Z")
Hello everyone, I’m trying to build a workflow with the AI agent node, Ollama, and PostgreSQL. Everything goes well for the first two questions that need to generate an SQL query. But on the third question that needs d… --- ## [Query your PostgreSQL data in plain English—no SQL, no CSV exports—just AI-powered insights in seconds.](https://community.n8n.io/t/query-your-postgresql-data-in-plain-english-no-sql-no-csv-exports-just-ai-powered-insights-in-seconds/282580)
**Author:** [@bhautik](https://community.n8n.io/u/bhautik)\ **Replies:** 3\ **Last updated:** [April 18, 2026, 7:31am UTC](https://community.n8n.io/t/query-your-postgresql-data-in-plain-english-no-sql-no-csv-exports-just-ai-powered-insights-in-seconds/282580 "2026-04-18T07:31:11Z")
:tada: Excited to share — my workflow is now officially published on the n8n template library! Query your PostgreSQL data in plain English using GPT-4o-mini The idea is simple: Stop exporting CSVs. Stop writing SQL ma… --- ## [A 'json' property isn't an object](https://community.n8n.io/t/a-json-property-isnt-an-object/285894)
**Author:** [@richardajensen](https://community.n8n.io/u/richardajensen)\ **Replies:** 7\ **Last updated:** [April 9, 2026, 8:26pm UTC](https://community.n8n.io/t/a-json-property-isnt-an-object/285894 "2026-04-09T20:26:25Z")
Hi. I’m getting the same error that was covered here: Returning a array from Code Node - A 'json' property isn't an object – but I’m not sure how to resolve it in this instance Describe the problem/error/question I’m ge… --- ## [Simplified swap of SQLite for PostgreSQL on test self-hosted instance](https://community.n8n.io/t/simplified-swap-of-sqlite-for-postgresql-on-test-self-hosted-instance/278255)
**Author:** [@OptimaBSC](https://community.n8n.io/u/OptimaBSC)\ **Replies:** 3\ **Last updated:** [March 18, 2026, 4:23pm UTC](https://community.n8n.io/t/simplified-swap-of-sqlite-for-postgresql-on-test-self-hosted-instance/278255 "2026-03-18T16:23:34Z")
Hi There are quite a few posts about migrating from the default SQLite to PostgreSQL, several of which I’ve read through. Most of the posts seem to be about migrating data, credentials, workflows, etc on active or produ… --- ## [The new topic PostgreSQL](https://community.n8n.io/t/the-new-topic-postgresql/278340)
**Author:** [@yimmimorenoa](https://community.n8n.io/u/yimmimorenoa)\ **Replies:** 0\ **Last updated:** [March 18, 2026, 1:29am UTC](https://community.n8n.io/t/the-new-topic-postgresql/278340 "2026-03-18T01:29:19Z")
Hi everyone, I’ve been working with PostgreSQL in n8n workflows and wanted to share some thoughts and also ask for advice. Recently, I integrated PostgreSQL as a data source in one of my automation pipelines, mainly to… --- ## [N8n login fails with "column User.role does not exist" after deployment on Zeabur](https://community.n8n.io/t/n8n-login-fails-with-column-user-role-does-not-exist-after-deployment-on-zeabur/277677)
**Author:** [@ZHE\_HAO\_WU](https://community.n8n.io/u/ZHE_HAO_WU)\ **Replies:** 1\ **Last updated:** [March 16, 2026, 11:51am UTC](https://community.n8n.io/t/n8n-login-fails-with-column-user-role-does-not-exist-after-deployment-on-zeabur/277677 "2026-03-16T11:51:44Z")
Hi everyone, I deployed n8n on Zeabur with a PostgreSQL database. Current version: n8n 1.82.3 Problem: I cannot log in to the n8n UI. Error message shown in the UI: column User.role does not exist Runtime logs al… --- ## [Cannot connect to postgres](https://community.n8n.io/t/cannot-connect-to-postgres/267663)
**Author:** [@MoritzSchoelderle](https://community.n8n.io/u/MoritzSchoelderle)\ **Replies:** 8\ **Last updated:** [February 23, 2026, 3:52pm UTC](https://community.n8n.io/t/cannot-connect-to-postgres/267663 "2026-02-23T15:52:11Z")
I tried to connect to Postgres, as I need advanced API access, that the normal supabase node does not provide. But when I try to connect with the correct host and db etc, I only get: connect ENETUNREACH 2a05:d018:135e:1… --- ## [Help: Can't connect n8n Postgres Account to my Supabase PostgreSQL database](https://community.n8n.io/t/help-cant-connect-n8n-postgres-account-to-my-supabase-postgresql-database/262765)
**Author:** [@Sanders\_Rohling\_Immo](https://community.n8n.io/u/Sanders_Rohling_Immo)\ **Replies:** 23\ **Last updated:** [February 11, 2026, 8:11am UTC](https://community.n8n.io/t/help-cant-connect-n8n-postgres-account-to-my-supabase-postgresql-database/262765 "2026-02-11T08:11:03Z")
Hi everyone, I’m currently trying to set up Postgres Chat Memory in n8n using a Supabase Postgres database, but I can’t get it to work and I’m stuck. The screenshots show what I’ve done so far. The credentials save, b… --- ## [Postgres node not connecting to Databricks Postgres DB Couldn’t connect with these settings Invalid protocol version. Protocol version: 196608](https://community.n8n.io/t/postgres-node-not-connecting-to-databricks-postgres-db-couldn-t-connect-with-these-settings-invalid-protocol-version-protocol-version-196608/214615)
**Author:** [@kushmaniar](https://community.n8n.io/u/kushmaniar)\ **Replies:** 1\ **Last updated:** [January 28, 2026, 1:41am UTC](https://community.n8n.io/t/postgres-node-not-connecting-to-databricks-postgres-db-couldn-t-connect-with-these-settings-invalid-protocol-version-protocol-version-196608/214615 "2026-01-28T01:41:32Z")
Hi, I am using n8n self hosted in AKS Azure Kubernets. My database administrator has created a Databricks Postgres instance and provided the hostname, db user and password configuration details. I used the same to conn… --- ## [High‑Performance Bulk Insert Mode for PostgreSQL Node (Reduced Validation / COPY-like Behavior)](https://community.n8n.io/t/high-performance-bulk-insert-mode-for-postgresql-node-reduced-validation-copy-like-behavior/255682)
**Author:** [@mrazon](https://community.n8n.io/u/mrazon)\ **Replies:** 0\ **Last updated:** [January 26, 2026, 8:14am UTC](https://community.n8n.io/t/high-performance-bulk-insert-mode-for-postgresql-node-reduced-validation-copy-like-behavior/255682 "2026-01-26T08:14:47Z")
The idea is: Add a high-performance bulk insert mode to the PostgreSQL node that internally builds multi-row INSERT statements (and/or uses a COPY-like mechanism) with reduced per-item validation. The node would: Group… --- ## [Performance Issues with PostgreSQL Node Inserts – Possible Refactoring?](https://community.n8n.io/t/performance-issues-with-postgresql-node-inserts-possible-refactoring/248732)
**Author:** [@mrazon](https://community.n8n.io/u/mrazon)\ **Replies:** 2\ **Last updated:** [January 18, 2026, 1:39pm UTC](https://community.n8n.io/t/performance-issues-with-postgresql-node-inserts-possible-refactoring/248732 "2026-01-18T13:39:58Z")
Describe the problem/error/question I’ve noticed that inserting data into a PostgreSQL database using the PostgreSQL node in n8n can be quite slow. For example, inserting 1,000 records takes around 4 seconds, regardless … --- ## [Postgress Memory not retrieving Messages chronologically](https://community.n8n.io/t/postgress-memory-not-retrieving-messages-chronologically/249722)
**Author:** [@Cristian\_Martanov](https://community.n8n.io/u/Cristian_Martanov)\ **Replies:** 4\ **Last updated:** [January 15, 2026, 10:32pm UTC](https://community.n8n.io/t/postgress-memory-not-retrieving-messages-chronologically/249722 "2026-01-15T22:32:01Z")
My PG Memory provides the conversation context mixed up. Error is simple: Messages come in randomly. Not paired, not chronoligical. Had anyone encountered this and solved it? Any advice is highly appreciated. Info… --- ## [\[BUG\] The Postgres node retrieves the conversation history in a non-chronological order. This mixed-up history confuses the AI agent](https://community.n8n.io/t/bug-the-postgres-node-retrieves-the-conversation-history-in-a-non-chronological-order-this-mixed-up-history-confuses-the-ai-agent/243601)
**Author:** [@Cristian\_Martanov](https://community.n8n.io/u/Cristian_Martanov)\ **Replies:** 14\ **Last updated:** [January 15, 2026, 12:03am UTC](https://community.n8n.io/t/bug-the-postgres-node-retrieves-the-conversation-history-in-a-non-chronological-order-this-mixed-up-history-confuses-the-ai-agent/243601 "2026-01-15T00:03:10Z")
As the title mentioned, my agent is not fed the meesages in order, thus resulting in bad conversations. I will attach photos as examples below from what the Agent got and how the DB looks in Supabase. They are real case… --- ## [Im doing a Workflow for a Medical Clinic (20k msgs/mo) using n8n v2.2.3 Queue Mode + Chatwoot + NocoDB](https://community.n8n.io/t/im-doing-a-workflow-for-a-medical-clinic-20k-msgs-mo-using-n8n-v2-2-3-queue-mode-chatwoot-nocodb/249536)
**Author:** [@NeurConex](https://community.n8n.io/u/NeurConex)\ **Replies:** 2\ **Last updated:** [January 14, 2026, 3:24pm UTC](https://community.n8n.io/t/im-doing-a-workflow-for-a-medical-clinic-20k-msgs-mo-using-n8n-v2-2-3-queue-mode-chatwoot-nocodb/249536 "2026-01-14T15:24:15Z")
Hi n8n Community. I’m currently designing a robust infrastructure for a Medical Clinic client in Latam. They handle approx 4,500 WhatsApp consultations per week (mostly audio and text) and rely heavily on phone calls, w… --- ## [The problem with using context in AI Agent + Postgres Chat Memory: the agent stops calling tools after 2-3 requests](https://community.n8n.io/t/the-problem-with-using-context-in-ai-agent-postgres-chat-memory-the-agent-stops-calling-tools-after-2-3-requests/233970)
**Author:** [@procoprobocop](https://community.n8n.io/u/procoprobocop)\ **Replies:** 3\ **Last updated:** [January 11, 2026, 10:06am UTC](https://community.n8n.io/t/the-problem-with-using-context-in-ai-agent-postgres-chat-memory-the-agent-stops-calling-tools-after-2-3-requests/233970 "2026-01-11T10:06:57Z")
Good day everyone! I came across an unobvious behavior in workflow, and I hope that someone will be able to suggest a solution. Configuration: Workflow implements chat with a PostgreSQL table via text-to-SQL. All… --- ## [Postgres node in operation problem](https://community.n8n.io/t/postgres-node-in-operation-problem/243430)
**Author:** [@scropion86](https://community.n8n.io/u/scropion86)\ **Replies:** 1\ **Last updated:** [January 6, 2026, 12:18pm UTC](https://community.n8n.io/t/postgres-node-in-operation-problem/243430 "2026-01-06T12:18:58Z")
Hello I have a problem getting my query work with in operation it is an array of integers but only getting the first one this is my array from previous node and below is the query parameter , getting only the resu… --- ## [Postgres - Error when select rows comparing timestamp field](https://community.n8n.io/t/postgres-error-when-select-rows-comparing-timestamp-field/227890)
**Author:** [@PabloRQ](https://community.n8n.io/u/PabloRQ)\ **Replies:** 3\ **Last updated:** [December 27, 2025, 6:19pm UTC](https://community.n8n.io/t/postgres-error-when-select-rows-comparing-timestamp-field/227890 "2025-12-27T18:19:50Z")
Describe the problem/error/question I’m trying to get the newest records from a Postgres table, getting only the ones greater or equal to a specific date. Using the Postgres Node with Operation=Select, the node gives an… --- ## [Unstable postgre connection](https://community.n8n.io/t/unstable-postgre-connection/223487)
**Author:** [@zoubinho](https://community.n8n.io/u/zoubinho)\ **Replies:** 1\ **Last updated:** [December 23, 2025, 1:27am UTC](https://community.n8n.io/t/unstable-postgre-connection/223487 "2025-12-23T01:27:21Z")
Describe the problem/error/question Facing postgre connection instability. Connection is fine at time, but it fails at other times. No specific pattern: using the same postgre credentials in test or production (automat… --- ## [AI Agent’s Tool Schema is what’s causing the “required” behavior](https://community.n8n.io/t/ai-agent-s-tool-schema-is-what-s-causing-the-required-behavior/236713)
**Author:** [@Alfredo\_Rapetta](https://community.n8n.io/u/Alfredo_Rapetta)\ **Replies:** 1\ **Last updated:** [December 18, 2025, 1:24pm UTC](https://community.n8n.io/t/ai-agent-s-tool-schema-is-what-s-causing-the-required-behavior/236713 "2025-12-18T13:24:32Z")
Describe the problem/error/question I have been trying to set my agent to create or update rows in a PostgreSQL table. I have tried both postgres tool and the Supabase tool, and I am repeatedly hitting the same error “Re… --- ## [To Upload Large Dataset to Database in n8n](https://community.n8n.io/t/to-upload-large-dataset-to-database-in-n8n/236759)
**Author:** [@SBGCO](https://community.n8n.io/u/SBGCO)\ **Replies:** 1\ **Last updated:** [December 16, 2025, 12:44pm UTC](https://community.n8n.io/t/to-upload-large-dataset-to-database-in-n8n/236759 "2025-12-16T12:44:08Z")
In n8n, I have a webhook that receives an Excel file with around 100,000 rows. I want to insert the data into a PostgreSQL table. Inserting the data row by row or in small batches is very slow. I know that using Python … --- ## [SQL Error with n8n and supabase](https://community.n8n.io/t/sql-error-with-n8n-and-supabase/233530)
**Author:** [@schiker](https://community.n8n.io/u/schiker)\ **Replies:** 3\ **Last updated:** [December 9, 2025, 2:34pm UTC](https://community.n8n.io/t/sql-error-with-n8n-and-supabase/233530 "2025-12-09T14:34:26Z")
I am using the latest version of n8n (self-hosted by Hostinger) and am trying to write a few lines to a table in a PostgreSQL database (Supabase). The table has several columns, and three of these columns have a constrai… [Next page](https://community.n8n.io/tag/postgres/98.md?match_all_tags=true&page=1&tags%5B%5D=postgres)