IBM Data and AI Ideas Portal for Customers


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Status Future consideration
Workspace Db2
Components Tables/Index (Range MQ MDC etc.)
Created by Guest
Created on Jun 28, 2022

RELATED IDEAS

Support for "every" in the "alter table add partition" to add multiple partitions

The "create table" statement supports this syntax to create a table with multiple partitions:

CREATE TABLE DOCUMENTS (
ID INTEGER,
CONTENTS VARCHAR(10))
PARTITION BY RANGE (ID)
(STARTING 1 ENDING 1000 EVERY 100)

This will create a table with 10 partitions, spanning 100 for each one.

When I want to create 10 more partitions, there is not easy to add multiple partitions. The only way is to create the 10 partitions individually, like:

ALTER TABLE DOCUMENTS ADD PARTITION part11 STARTING FROM 1000 ENDING 1100
ALTER TABLE DOCUMENTS ADD PARTITION part12 STARTING FROM 1100 ENDING 1200
...
ALTER TABLE DOCUMENTS ADD PARTITION part19 STARTING FROM 1800 ENDING 1900
ALTER TABLE DOCUMENTS ADD PARTITION part20 STARTING FROM 1900 ENDING 2000

Instead, it will be better to have the EVERY option as part of the ALTER TABLE statement, like:

ALTER TABLE DOCUMENTS ADD PARTITIONS STARTING FROM 1000 ENDING 2000 every 100

Needed By Not sure -- Just thought it was cool

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