February 2018
Intermediate to advanced
510 pages
16h 10m
English
Content preview from MySQL 8 Administrator???s Guide
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Overview of merge
This storage engine is also known as an MRG_MyISAM storage engine. This storage engine merges a MyISAM table and creates it to be referred to a single view. For a merge table, all columns are listed in the same order. These tables are good for data warehousing environments.
The table is used to manage log-related tables, generally. You can create different months of logs in separate MyISAM tables and merge these tables using the merge storage engine.
MyISAM tables have storage limit for the operating system, but a collection of MyISAM (merge) tables do not have storage limits. So using a merge table would allow you to split data into multiple MyISAM tables, which can help in overcoming storage limits.
Merge tables do not ...
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