Postgres index naming convention

create index in postgresql example

create index in postgresql table example

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In PostgreSQL, you can add indexes to a table using .

In a simple analogy, an index can be thought of as a directory of dictionaries. With the table of contents, you can find words faster.

With indexes, you can retrieve rows from a table faster. An index is an ordered data structure that requires additional space for storage.

Here is the simple syntax of PostgreSQL statement:

Explanation:

The is the name of the index to create.

It is optional. If you do not specify an index name, PostgreSQL will automatically generate one.
The is the name of the table for which the index is to be created.
The is the name of the index method, including , , , , , and .

is the default method.
Create unique index postgres
You can check Index Types to learn more.
The is the name of the column to be indexed.
The specifies whether the sorting is ascending or descending. It is optional and the default value is .
The or specifies that null values come before or after non-null values when sorting.

When specified, is the default, otherwise is the default.
The Instructs to create a uniq