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Results tagged with index
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user 33002
A database structure that can improve the speed of queries at the cost of disk space and slower inserts/updates. It stores a copy of one or more columns sorted but structures the data differently to allow faster access.
3
votes
1
answer
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Why are InnoDB's index keys limited to 767 bytes?
MySQL's official documentation states about InnoDB:
An index key for a single-column index can be up to 767 bytes. The same length limit applies to any index key prefix. …
- 161
3
votes
Why are InnoDB's index keys limited to 767 bytes?
UPDATE
The quote above applies to the total index key length for a row, whereas my original question was about the index key length for a single-column index. … and multi-column indexes, and
why the legacy value of 767 bytes (if it is indeed a legacy value) was kept for single-column index key lengths. …
- 161