HStore

HStore (short for "hash store") is a data storage format used in databases like PostgreSQL to efficiently store sets of key-value pairs. Think of it as a flexible, organized way to save multiple pieces of related information within a single field, similar to a mini-dictionary or spreadsheet cell that can hold various attributes—for example, user preferences or product details. It allows quick access, updates, and efficient storage, making data handling more flexible and adaptable for complex or varying data structures without needing multiple columns.