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Databases

PostgreSQL queries run too slowly and are hard to tune

8 posts from 8 people8d activeFading, +0 this week

Posts per day

Posts per day8 posts, Aug 29 to Nov 9

The posts behind it

Stack OverflowStack Overflow [postgresql] · DANIELA MARICLER GUITZ PALMAOct 29

Why does PostgreSQL ignore my B-tree index on WHERE upper(name) LIKE 'GARC%' and do a sequential scan?

I have a PostgreSQL 16 table with about 3 million rows. Searching customers by name prefix, case-insensitively, is slow. The query does a sequential scan even though name is indexed.. Environment: PostgreSQL 16.2, database encoding UTF8, collation en_US.UTF-8 .. Table and index:...

Redditr/PostgreSQL · u/TurbulentStiffnessOct 22

I almost upgraded my server because of one innocent dropdown

A client messaged me saying their order dashboard had become basically unusable. I opened it. Everything worked. They sent me a screen recording. Twelve seconds to load one report.. The app and postgreSQL database were running on a small serverspace VM, so my first thought was...

Redditr/PostgreSQL · u/pthmOct 20

Melange: Compiling OpenFGA authorization into native PL/pgSQL functions (1 year later)

...authorization data synchronized with an application database adds overhead that I find hard to justify at smaller scales.. Melange takes a different approach: it compiles OpenFGA schemas into PL/pgSQL functions, with relationship traversals, unions, intersections, and exclusions...

Redditr/SQL · u/Gokul_00Oct 1

I built a free SQL practice site where you answer requests from a fake CEO/Head of Growth instead of solving textbook puzzles. Looking for feedback

...built SQL Office Simulator.. You play the company's data analyst. Stakeholders send you messy business requests like "which regions have the highest share of repeat buyers in 2025, excluding cancelled orders?", and you explore the schema, write the query, and submit it.. How it...

Redditr/PostgreSQL · u/rathbomaSep 23

Any good tools for identifying slow or inefficient queries?

...or otherwise inefficient queries. - maybe offer suggestions on improvements . Thanks for any suggestions .

Stack OverflowStack Overflow [postgresql] · orbistatsSep 18

How to design a polymorphic database schema for entities with structurally different shapes?

I'm building a backend that stores match data across multiple sports (football, basketball, tennis, cricket, MMA, etc.). The problem is these sports have fundamentally different structures:. Football: 2 halves, stoppage time, running score. . Basketball: 4 quarters, fouls that...

1 replies
Redditr/PostgreSQL · u/Frone0910Sep 14

Major update to RDST - You can now ask your postgres database any question you want, unlimited and free under MIT License

...against BIRD, which is the standard benchmark for text-to-SQL. BIRD uses real databases, messy real-world schemas, and it scores by execution. The results for RDST against BIRD have been extremely encouraging; we have vastly improved our text2sql interface compared to raw model...

GitHub issuessupabase/supabase · yjhjstzAug 29

Feature request: Support pg_orca (Cascades-style query optimizer) as an alternative PostgreSQL optimizer

## Feature request **Is your feature request related to a problem?** PostgreSQL's built-in planner occasionally produces suboptimal plans for complex analytical queries (multi-way joins, subqueries, CTEs). A new open-source extension,...

Companies and products named

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About this problem

Evidence

8 posts from 8 people in 4 places, about 1 a week over 62 days. Mostly on r/PostgreSQL, Stack Overflow [postgresql], supabase/supabase. Tools named alongside: GitHub, Supabase, MySQL, Vercel.

Frustration Frustration 1 of 3· Seen on Reddit, Stack Overflow, GitHub issues

How it was grouped

Posts that state a pain and match the "slow-queries" rule about PostgreSQL. First post Aug 29, 2026, latest Oct 29, 2026. Corroborated: 3 or more posts from 2 or more people or places. Method

The same problem elsewhere

Queries run too slowly and are hard to tune

5 posts from 5 people on GitHub issues, Stack Overflow.

ClickHouse queries run too slowly and are hard to tune

3 posts from 2 people on GitHub issues.

Other PostgreSQL problems

PostgreSQL users keep filing bugs

Top post: "Instance owner cannot view execution data in a team project when the execution uses a credential of that", one of 42 posts from 41 people on GitHub issues, Stack Overflow, Reddit.

PostgreSQL vulnerabilities are hard to triage and patch

2 posts from 2 people on Glyph Ibis. Unverified.

PostgreSQL upgrades break working setups

13 posts from 12 people on GitHub issues, Stack Overflow, Reddit.

PostgreSQL error messages are cryptic

7 posts from 7 people on GitHub issues, Stack Overflow.

PostgreSQL permissions are confusing and error-prone

7 posts from 7 people on GitHub issues, Hacker News.

Trouble with PostgreSQL database

Top post: "Canonicalising unit names from a flat file in a normalised database structure", one of 6 posts from 6 people on GitHub issues, Stack Overflow.

PostgreSQL jobs fail silently or break often

5 posts from 4 people on GitHub issues.

PostgreSQL feels slow and laggy

5 posts from 5 people on Mastodon, Reddit, GitHub issues.

Trouble with PostgreSQL workflow

Top post: "Agent not recognizing the workflow inputs", one of 4 posts from 4 people on GitHub issues, Stack Overflow.

PostgreSQL outages and slowdowns disrupt work

4 posts from 4 people on GitHub issues, Reddit.

Trouble with PostgreSQL credentials

Top post: "SFTP Credentials: Port field clears value and incorrectly formats large port numbers", one of 4 posts from 4 people on GitHub issues.

PostgreSQL connectors and syncs are fragile

4 posts from 4 people on GitHub issues, Hacker News.

History

Momentum went from steady to fading.

Nov 5, 2026

Momentum went from fading to steady.

Nov 2, 2026

Momentum went from steady to fading.

Oct 29, 2026

Momentum went from fading to steady.

Oct 28, 2026

Momentum went from steady to fading.

Oct 2, 2026

Corroborated: 3 or more posts from 2 or more people or places.

Sep 28, 2026

Momentum went from fading to steady.

Sep 28, 2026

First seen with 2 posts.

Sep 25, 2026