PostgreSQL: Documentation: 18: Chapter 8. Data Types
Nov 13, 2025 · Table 8.1 shows all the built-in general-purpose data types. Most of the alternative names listed in the “Aliases” column are the names used internally by PostgreSQL for historical …
PostgreSQL - Data Types - GeeksforGeeks
May 14, 2025 · In PostgreSQL, data types are essential for determining the kind of data that can be stored in a database column. Each data type has its own characteristics, such as storage …
PostgreSQL: Documentation: 18: 8.3. Character Types
Nov 13, 2025 · Table 8.4 shows the general-purpose character types available in PostgreSQL. SQL defines two primary character types: character varying(n) and character(n), where n is a positive …
PostgreSQL: Documentation: 18: 8.5. Date/Time Types
Nov 13, 2025 · The operations available on these data types are described in Section 9.9. Dates are counted according to the Gregorian calendar, even in years before that calendar was introduced (see …
PostgreSQL - Data Type - Online Tutorials Library
In this chapter, we will discuss about the data types used in PostgreSQL. While creating table, for each column, you specify a data type, i.e., what kind of data you want to store in the table fields.
PostgreSQL: Documentation: 18: 52.64. pg_type
Nov 13, 2025 · 52.64. pg_type # The catalog pg_type stores information about data types. Base types and enum types (scalar types) are created with CREATE TYPE, and domains with CREATE …
PostgreSQL: Documentation: 18: 8.1. Numeric Types
Nov 13, 2025 · The type integer is the common choice, as it offers the best balance between range, storage size, and performance. The smallint type is generally only used if disk space is at a premium. …
PostgreSQL Data Types: A Guide for Database Optimization - Medium
Apr 15, 2025 · Learn how PostgreSQL's data types can dramatically improve database performance, reduce storage needs, and simplify your application code. From JSON to vectors, master types that …
List of PostgreSQL Data Types - TutorialsTeacher.com
In PostgreSQL, a data type is a classification of data based on the type of value it represents. Here is the list of all data types in PostgreSQL.
PostgreSQL: Documentation: 15: 38.2. The PostgreSQL Type System
This powerful feature allows a single function definition to operate on many different data types, with the specific data type (s) being determined by the data types actually passed to it in a particular call.