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Dictionaries in ClickHouse: fast lookup without JOIN

https://sudonull.com/dictionaries-in-clickhouse-fast-lookup-without-join

How to use ClickHouse dictionaries to replace JOIN with microsecond in-memory lookup. Types: flat/hashed/range, data sources, dictGet, and examples for gambling.

HyperLogLog and Count-Min Sketch in Go for Big Data

https://sudonull.com/hyperloglog-and-count-min-sketch-in-go-for-big-data

Implementation of HyperLogLog and Count-Min Sketch in Go: code, benchmarks, comparison. Estimating uniqueness and frequencies with minimal memory for data streams. For middle/senior devs.

O(1) vs O(log n) Gap: Cache in Data Structures

https://sudonull.com/o-1-vs-o-log-n-gap-cache-in-data-structures

Why hash table O(1) loses to binary search O(log n) by 40%? Analysis of cache misses, array/list benchmarks and memory hierarchy for RISC-V. Learn real performance.

Nano-diodes: sensor, memory, and processing in one element

https://sudonull.com/nano-diodes-sensor-memory-and-processing-in-one-element

Scientists created a p-n diode the size of a nanowire, combining photodetection, data storage, and processing. Learn how this will change electronics for IoT and wearable devices. Read the analysis of implications.

Caffeine and CA2: memory restoration during sleep deprivation

https://sudonull.com/caffeine-and-ca2-memory-restoration-during-sleep-deprivation

Learn how caffeine through adenosine receptors in CA2 of the hippocampus eliminates the deficit of social memory from 5 hours without sleep. Scientific data, LTP mechanisms. For neurobiologists and developers.

From other projects

Peptide ALGERNON reversed symptoms of Down syndrome

https://ymaho.com/peptide-algernon-reversed-symptoms-of-down-syndrome

Stanford peptide ALGERNON restored memory in mice without altering the genome. Learn how brain inhibition tuning works. Read details.

HPE Surged 25%: Boom in AI Servers and Memory Shortage

https://ymaho.com/hpe-surged-25-boom-in-ai-servers-and-memory-shortage

HPE Shares Rose 25% Due to Surging Demand for AI Servers and DRAM/NAND Shortage. Analysis of Growth Drivers, Beneficiaries, and Hidden Risks. Read Details.

Rise of KOSPI and Nikkei: AI and Memory vs. Geopolitics

https://ymaho.com/rise-of-kospi-and-nikkei-ai-and-memory-vs-geopolitics

Why KOSPI and Nikkei are rising despite the crisis in Hormuz. Analysis of the AI supercycle, memory revaluation, and the death of the 'Korean discount'. Find out who wins and who loses.

In-demand professions after 40 for women with training

https://ymaho.com/in-demand-professions-after-40-for-women-with-training

TOP-6 professions for women after 40 with fast training and income from $800. Start your career in 3-9 months. Read the step-by-step entry plan!

In vivo gene editing: phase 3 of HAE therapy successful

https://ymaho.com/in-vivo-gene-editing-phase-3-of-hae-therapy-successful

First ever successful phase 3 in vivo gene editing: lonvo-z therapy reduces HAE attacks by 87%. Learn about the breakthrough and discontinuation of prophylaxis.

190 thousand illegal miners in Russia: what to do?

https://ymaho.com/190-thousand-illegal-miners-in-russia-what-to-do

In Russia, there are almost 200 thousand illegal miners. Find out how the authorities plan to legalize the industry and why this is important for everyone.

From the web

Query - Wikipedia

https://en.wikipedia.org/wiki/Query

Query 5 languagesAdd topic

Home - Query

https://www.query.ai/

Query is a federated search platform for security data providing expanded data visibility without centralization.

Query - definition of query by The Free Dictionary

https://www.thefreedictionary.com/query

Define query. query synonyms, query pronunciation, query translation, English dictionary definition of query. n. pl. que·ries 1. A …

QUERY Definition & Meaning | Dictionary.com

https://www.dictionary.com/browse/query

QUERY definition: a question; an inquiry. See examples of query used in a sentence.

QUERY | definition in the Cambridge English Dictionary

https://dictionary.cambridge.org/us/dictionary/english/query

QUERY meaning: 1. a question, often expressing doubt about something or looking for an answer from an authority…. Learn more.

What is a query? Database queries explained - Hostinger

https://www.hostinger.com/tutorials/what-is-a-query

Sep 15, 2025 · Learn what a query is, how it works in databases and search engines, plus query types and languages like SQL with …

Query - Definition, Meaning & Synonyms | Vocabulary.com

https://www.vocabulary.com/dictionary/query

A query is a question, or the search for a piece of information. The Latin root quaere means "to ask" and it's the basis of the words …

QUERY Simple Definition - Merriam-Webster

https://www.merriam-webster.com/simple/query

The simple definition of QUERY is a question or a request for information about something.

What is a query? | Definition from TechTarget

https://www.techtarget.com/searchdatamanagement/definition/query

Apr 16, 2024 · The most popular query language is structured query language or SQL. One reason for its popularity is that SQL is …

QUERY Synonyms: 118 Similar and Opposite Words - Merriam-Webster

https://www.merriam-webster.com/thesaurus/query

2 days ago · Synonyms for QUERY: doubt, skepticism, suspicion, uncertainty, concern, reservation, disbelief, distrust; Antonyms of …

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