Shiv Iyer, Author at ChistaDATA Inc.

How to Implement Partial Indexes in ClickHouse

Introduction Partial indexes are a powerful feature in ClickHouse that allow DBAs to index only a subset of the rows in a table based on a specified condition. This can significantly reduce the index size […]

How to Implement Reserved Connections in ClickHouse

Shiv Iyer

Reserved connections in ClickHouse can be used to improve query performance by reserving a portion of the available connections for specific users or use cases. By reserving connections, you can ensure that high-priority queries have […]

Implementing Inverted Indexes in ClickHouse for Fast Search (Part 2)

Shiv Iyer

Introduction Inverted indexes are a common technique used in search engines and database systems to quickly search for and retrieve data. In ClickHouse, inverted indexes are implemented using a combination of algorithms and data structures. […]

Comparing ClickHouse v/s Hadoop for Real-time Analytics Capability

Shiv Iyer

Introduction Hadoop and ClickHouse are two different systems that serve different purposes when it comes to processing and analyzing data. Hadoop is a distributed computing platform that is designed to process and analyze large volumes […]

Leveraging ClickHouse to Build Real-time Credit Card Fraud Detection in Modern Banking

Shiv Iyer

Introduction Credit card fraud analytics systems have migrated from traditional OLAP to ClickHouse based real-time analytics systems because traditional OLAP systems have limitations in processing and analyzing large volumes of data in real-time. Limitations of […]

Data Science in ClickHouse: Normal Distributions and t Distributions

Shiv Iyer

Introduction The normal distribution and t-distribution are two of the most commonly used probability distributions in statistics. They are used to model the distribution of continuous variables, such as heights, weights, and test scores, and […]

How to perform a full-text phrase search in ClickHouse?

Shiv Iyer

To perform full-text phrase search in ClickHouse, you can use the match() function in combination with regular expressions. Although ClickHouse does not have a built-in full-text search feature like some other databases, the match() function […]

How to Implement the Black-Scholes Model in ClickHouse?

How do Data Scientists use Black-Scholes model on ClickHouse?

Shiv Iyer

Introduction The Black-Scholes model is a mathematical formula used to estimate the price of European-style options, which are financial contracts that give the holder the right, but not the obligation, to buy or sell an […]

ClickHouse Troubleshooting: How to Monitor I/O Subsystem Reads

Shiv Iyer

Introduction If the I/O subsystem reads in ClickHouse are struggling, it can lead to slower query performance and longer query execution times. Here are a few ways to tell if the I/O subsystem reads in […]

Use cases for Real-time Analytics with ClickHouse in Modern Banking

Use cases for Real-time Fraud Analytics with ClickHouse in Modern Banking

Shiv Iyer

Introduction The modern banking industry faces significant challenges related to fraud prevention. Fraudsters are becoming increasingly sophisticated, and traditional fraud detection methods are often insufficient to detect and prevent fraudulent activities. Real-time fraud analytics is […]

ChistaDATA Inc.

Enterprise-class 24*7 ClickHouse Consultative Support and Managed Services

Articles by Shiv Iyer

How to Implement Partial Indexes in ClickHouse

How to Implement Reserved Connections in ClickHouse

Implementing Inverted Indexes in ClickHouse for Fast Search (Part 2)

Comparing ClickHouse v/s Hadoop for Real-time Analytics Capability

Leveraging ClickHouse to Build Real-time Credit Card Fraud Detection in Modern Banking

Data Science in ClickHouse: Normal Distributions and t Distributions

How to perform a full-text phrase search in ClickHouse?

How do Data Scientists use Black-Scholes model on ClickHouse?

ClickHouse Troubleshooting: How to Monitor I/O Subsystem Reads

Use cases for Real-time Fraud Analytics with ClickHouse in Modern Banking