11/14/2023 0 Comments Postgres datatypesThe PostgreSQL UUID Data Types also refers to the Universally Unique Identifiers are defined by the RFC 4122, ISO/IEC 9834-8:2005 and a sequence of lower-case hexadecimalĭigits that are separated by hyphens and a group of 8 digits and same is followed by three groups of 4 digits again followed by a group of 12 digits, so the for a total of 32 digits Tsquery represents the query and the tsvector represents the optimized documents for text searching. The PostgreSQL Text Search Data Types provides two data types tsvector and tsquery to perform text search operations through the natural-language documents. It has two-bit types bit(n) and bit varying(n) where n The PostgreSQL Bit String Data Types stores the bit masks values that contain two values 1 or 0. Provides input error checking, functions, and specialized operators. This data type is better if we compare it with the plain text type because it The PostgreSQL Network Address Data Types stores the information about the IPv4, IPv6, and MAC addresses. It represents the Polygon (similar to closed path) It represents the Closed path (similar to polygon) It represents the Infinite line (not fully implemented) The basic types are Points, Lines, Boxes, Paths, Circles, and Polygons. The PostgreSQL Geometric Data Types is the representation of two-dimensional spatial objects. Postgres=# CREATE TYPE weekname AS ENUM ('Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday', The PostgreSQL Enumerated Data Types stores the static ordered set of values and is similar to enum types of other programming languages such as days of the week.Įnumerated Data Types are created using the CREATE TYPE command as mentioned in the below example. The Third state of Boolean Data Type is unknown that is represented as a Null value. The PostgreSQL Boolean Data Types store the True and false values. It stores the time of day (no date), with time zone It can store both date and time, with time zone It can store both date and time (no time zone) The Date is considered based on the Gregorian calendar. The PostgreSQL Date/Time Data Types stores the full set of date and time values. It stores 1 or 4 bytes along with actual and variable binary strings. The PostgreSQL Binary bytea Data Types stores the binary string. The PostgreSQL Character Data Types stores character string. The casting of numeric, int, and bigint data types can be done in the money data type.ĭue to its routing error, it is not recommended to use the Floating point numbers for handling the money. The PostgreSQL Monetary Data Types stores the currency information in a fixed fractional precision. Up to 131072 digits before the decimal point up to 16383 digits after the decimal point The PostgreSQL Numeric Data Types stores the two-byte, four-byte, and eight-byte integers and it stores the four-byte and eight-byte floating-point numbers and the selectable-precisionįrom -9223372036854775808 to +9223372036854775807 Let's explore the PostgreSQL Data Types in the below section. The following is the list of Data Types which are supported in PostgreSQL. The best performance, the correct usage of data types providing the proper validation of data, and rejecting the unnecessary data, the storage can be utilized properly if we define the correctįormat of Data Types which results in the best performance. Defining the correct Data types provides several benefits such as operations on the same data types providing User can create their custom data types using the CREATE TYPE SQL. PostgreSQL provides a variety of Data Types such as Numeric Types, Character Types, Date/Time Types, Boolean Types, and many more, which are used to store various types of userĭata.
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