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What are HEAP tables in MySQL?

Question Posted / amith


What are HEAP tables in MySQL?..

Answer / amith

HEAP tables are in-memory. They are usually used for high-
speed temporary storage. No TEXT or BLOB fields are allowed
within HEAP tables.

we can only use the comparison operators = and <=>. HEAP
tables do not support AUTO_INCREMENT. Indexes must be NOT
NULL.

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