Author

Lokesh Kumar

@ls.lokesh.sheo

articles: 16
total claps: 345
top claps: 303
avg read: 4.7 min
paywalled: 2
active: 2025-05-17 → 2026-06-26

Wiki topics

AI · AI · General · 3 🌐 · Web Development · 2 EVAL · Evaluation & Benchmarks · 2 RAG · RAG & Retrieval · 2 LNG · Linguistics & Language · 1 🔭 · Astronomy & Space · 1 HUM · Humanities · General · 1 LIT · Literature & Writing · 1

Top tags

#postgresql ·7 #golang ·7 #rabbitmq ·3 #routing ·3 #artificial-intelligence ·3 #meta-api ·3 #mvcc ·2 #chatbot-development ·2 #politics ·1 #political-drama ·1

SCI HUM SPR

LO LOKESH KUMAR

Sunita Williams' shocking revelation

Know how strong Sanatan Dharma is

Aug 22, 2025 · 3 min read · 303 claps paywalled #nasa #sunita-williams #sanatana-dharma

HUM SOC MDA

LO LOKESH KUMAR

Here comes the debate on Rahul Gandhi's Operation Sindoor.

Enemy Narratives, Internal Drama, and the Politics of Desperation

Jul 30, 2025 · 3 min read · 39 claps paywalled #politics #political-drama #pulwama-attack

Here comes the debate on Rahul Gandhi's Operation Sindoor.

LO Lokesh Kumar

WAL Record Layout: Parsing PostgreSQL’s Write-Ahead Log in Go

Every write in PostgreSQL is recorded twice: once in the heap page, once in the WAL. The WAL is the ground truth. If the heap disagrees…

May 09, 2026 · 6 min read · 1 claps #postgresql #golang

ART AI

LO Lokesh Kumar

RabbitMQ Routing Is a Binding Evaluation Engine: A Protocol-Level Examination

RabbitMQ is typically introduced as a message broker consisting of producers, exchanges, queues, and consumers. In most architectural…

Feb 24, 2026 · 5 min read · 1 claps #rabbitmq #routing #tracing

RabbitMQ Routing Is a Binding Evaluation Engine: A Protocol-Level Examination

LO Lokesh Kumar

Heap Tuples and MVCC Headers: How PostgreSQL Tracks Transaction Visibility

Every row stored in a PostgreSQL heap has a 23-byte (padded to 24) header prepended to its attribute data. This header carries the MVCC…

Mar 28, 2026 · 4 min read · 1 claps #postgresql #golang #mvcc

LO LOKESH KUMAR

Part 3: WhatsApp Webhooks — Receiving Messages and Processing Events in Real Time

Introduction

Jun 24, 2026 · 11 min read · 0 claps #whatsapp-webhook #python #artificial-intelligence

Part 3: WhatsApp Webhooks — Receiving Messages and Processing Events in Real Time

LO LOKESH KUMAR

Part 4: WhatsApp Message Templates — Creating, Managing, and Sending at Scale

Introduction

Jun 26, 2026 · 11 min read · 0 claps #whatsapp-template #template-message #chatbot-development

Part 4: WhatsApp Message Templates — Creating, Managing, and Sending at Scale

LO LOKESH KUMAR

Part-2 .2 WhatsApp Business Platform : Sending Every Type of WhatsApp Message — Text, Media…

9. Interactive Button Messages (Quick Reply)

Jun 22, 2026 · 5 min read · 0 claps #whatsapp-api-integration #whatsapp #meta-api

Part-2 .2 WhatsApp Business Platform : Sending Every Type of WhatsApp Message — Text, Media…

LO Lokesh Kumar

MVCC Visibility Rules: Implementing HeapTupleSatisfiesMVCC

PostgreSQL’s snapshot isolation is implemented without read locks. Instead, every row version carries the transaction IDs that inserted and…

Apr 18, 2026 · 5 min read · 0 claps #postgresql #golang #mvcc

TCH

LO Lokesh Kumar

B-tree Index Pages: The nbtree Format in Go

PostgreSQL’s default index type is B-tree, implemented in src/backend/access/nbtree/. Every B-tree index page uses the standard 8 KB heap…

Apr 11, 2026 · 5 min read · 0 claps #postgresql #golang #b-tree-index

AI LIF

LO Lokesh Kumar

The Computational Complexity of Topic Exchanges in RabbitMQ: Benchmarks, Pathologies, and Design…

Most performance discussions around RabbitMQ focus on disk throughput, consumer lag, or clustering. Far fewer examine the computational…

Mar 03, 2026 · 4 min read · 0 claps #rabbitmq #complexity #routing

The Computational Complexity of Topic Exchanges in RabbitMQ: Benchmarks, Pathologies, and Design…

MKT

LO Lokesh Kumar

B-tree Splits: Recursive Page Splits, Sibling Chains, and Root Promotion

Part 6 of the deep-postgres series - rebuilding PostgreSQL internals in Go.

Apr 25, 2026 · 4 min read · 0 claps #postgresql #golang #b-tree

ECO HUM AI TCH

LO Lokesh Kumar

Building a Buffer Manager: Clock-Sweep Eviction and Pin Semantics

PostgreSQL’s buffer manager (src/backend/storage/buffer/) is the layer between the rest of the system and disk. It maintains a fixed-size…

Apr 04, 2026 · 3 min read · 0 claps #postgresql #golang #buffer-management

ECO AI

LO Lokesh Kumar

PostgreSQL Page Layout: Rebuilding the 8 KB Heap Page in Go

Every table and index in PostgreSQL is stored as a sequence of 8 KB pages on disk. The format is defined in src/include/storage/bufpage.h…

Mar 20, 2026 · 3 min read · 0 claps #postgresql #golang #database-internals

TCH

LO Lokesh Kumar

How I Built amqp-routing-inspector: A RabbitMQ Routing Debugging Tool

Introduction

Feb 20, 2026 · 2 min read · 0 claps #rabbitmq #amqp #routing

How I Built amqp-routing-inspector: A RabbitMQ Routing Debugging Tool

TCH

LO Lokesh Kumar

How to Set Up the NVIDIA RTX 5070 Ti on Ubuntu 24.04 (and Fix Black Screen Issues)

The NVIDIA RTX 5070 Ti is an incredible card — but getting it working smoothly on Ubuntu 24.04 (or 22.04) is not plug-and-play yet. Driver…

May 17, 2025 · 2 min read · 0 claps #rtx-50-series #ubuntu