DELETE

The DELETE statement is used to delete records.

This document shows how to delete records using DELETE. See the guidelines for more information on limitations and rules for queries in Riak TS.

Overview

The DELETE statement removes whole records matching a WHERE clause and a given timestamp from a specified table. It is not possible to remove separate columns or indices from a record.

DELETE has the following syntax:

DELETE FROM «table_name» WHERE column1 = value1 [AND column2 = value ...] AND { time = t | time op t1 AND time op t2 }, where op = { >, <, >=, <= }

The WHERE clause in DELETE should include all columns comprising PRIMARY KEY in the table definition.

Timestamp values can be provided as milliseconds or in supported ISO 8601 formats. DELETE acts as a single-key delete, like the HTTP DELETE command.

Examples

The following table defines a schema for sensor data.

CREATE TABLE SensorData
(
   id     SINT64    NOT NULL,
   time   TIMESTAMP NOT NULL,
   value  DOUBLE,
   PRIMARY KEY (
     (id, QUANTUM(time, 15, 'm')),
      id, time
   )
)

Single Record

Delete a single record:

DELETE FROM SensorData WHERE id = 3 AND time = '2016-11-28 06:10:03';