Samarth Dhawan

Backend Engineer

[Samarth Dhawan @samd_twts]

LLM: “Here’s an optimized SQL query.”

Me: "EXPLAIN ANALYZE"

The query: 💀

One habit that makes LLM-generated SQL 10x better:

"EXPLAIN ANALYZE"

Don't just ask the LLM if the query is optimized. Let the database tell you.

[Samarth Dhawan @samd_twts]

Implement shell from scratch (first principle)
Code : https://t.co/T3Wqmn3eUR

[Samarth Dhawan @samd_twts]

One of the best C pointer exercises from MIT.

I challenge you to predict the full output without running the code.

This is real pointer stuff. Not the basic ones.
Save it. Try it when you think you know C well.
Code here:
https://t.co/u9KqqGqMtj

[sachin2040 @sachin2040]

RAG fundamentals:
1/ Why do "advanced" retrieval techniques like HyDE and MultiQuery sometimes underperform plain dense retrieval? Full benchmark and lessons in this thread.

[sachin2040 @sachin2040]

RAG fundamentals: The HyDE hallucination paradox
1/ Why did adding "advanced" retrieval like HyDE drop your Hit Rate instead of lifting it? You expected a boost. Hit Rate fell 8 points.

[sachin2040 @sachin2040]

1/ Have you wondered why your RAG works in demos but fails on real queries?
Chunk boundary failure could be the cause.
Three fixes for the most overlooked retrieval failure: chunk boundary splits.

[Samarth Dhawan @samd_twts]

@LeetCode down??

[Samarth Dhawan @samd_twts]

@mehulmpt @fermionapp @samd_twts I would love to work on the @fermionapp platform

[Samarth Dhawan @samd_twts]

@ARanganathan72 Just a wow

[Samarth Dhawan @samd_twts]

@shivambhadani_ I think this is the best method to take interviews

[Samarth Dhawan @samd_twts]

@kirat_tw @0xppl_ Timings kya hai Bhai?

[Samarth Dhawan @samd_twts]

@sama bhai ka bhi layoff ho gya😔

[Samarth Dhawan @samd_twts]

Ever wondered what magic happens behind the scenes when you type a command into your shell and hit enter? 🤔 Just wrapped up a deep dive into the inner workings of the shell! 🚀 Dive in with me and unravel the mystery: https://t.co/HKf7G5E1ju

[Samarth Dhawan @samd_twts]

@ahsannoor101 render is also good for deploying backened apps

[Samarth Dhawan @samd_twts]

@SamajhNhiAaRaha Not accepting

[Gaurav Sen @gkcs_]

System design Book recommendations.

https://t.co/XdM23rlOEF

[Samarth Dhawan @samd_twts]

@LinuxHandbook Deep rooted

[Samarth Dhawan @samd_twts]

@poojaasanwal 👋

[Samarth Dhawan @samd_twts]

@eyishazyer @SaveToBookmarks