Noun
tablespace (plural tablespaces)
English Wikipedia has an article on:tablespaceWikipedia
(databases) A storage location where the actual data underlying the objects in a database can be kept.
The tablespace provides a layer of abstraction between physical and logical data.
A mismatch between index information maintained within the files and the corresponding information in the InnoDB system tablespace could produce this error: columns unique inside InnoDB, but MySQL is asking statistics for columns. Source: Internet
Data-at-rest tablespace encryption is available in MySQL 5.7 and later. Source: Internet
On Windows systems, must be run separately for each user-defined tablespace file. Source: Internet
Prior to MySQL 5.6.7, the default was to keep all tables and indexes inside the system tablespace, often causing this file to become very large. Source: Internet