top.rst

top

Table of contents

• Description
• Syntax
• Example 1: Find the most common values in a field
• Example 2: Find the most common values in a field
• Example 2: Find the most common values organized by gender
• Limitation

Description

Using top command to find the most common tuple of values of all fields in the field list.

Syntax

top [N] <field-list> [by-clause]

• N: number of results to return. Default: 10
• field-list: mandatory. comma-delimited list of field names.
• by-clause: optional. one or more fields to group the results by.

Example 1: Find the most common values in a field

The example finds most common gender of all the accounts.

PPL query:

os> source=accounts | top gender;
fetched rows / total rows = 2/2
+--------+
| gender |
|--------|
| M      |
| F      |
+--------+

Example 2: Find the most common values in a field

The example finds most common gender of all the accounts.

PPL query:

os> source=accounts | top 1 gender;
fetched rows / total rows = 1/1
+--------+
| gender |
|--------|
| M      |
+--------+

Example 2: Find the most common values organized by gender

The example finds most common age of all the accounts group by gender.

PPL query:

os> source=accounts | top 1 age by gender;
fetched rows / total rows = 2/2
+--------+-----+
| gender | age |
|--------+-----|
| F      | 28  |
| M      | 32  |
+--------+-----+

Limitation

The top command is not rewritten to OpenSearch DSL, it is only executed on the coordination node.