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How important is the "clustered" property of MySQL PK index?

I am trying to understand what clustering means, how best to make use of it, whether it is useful property to try and optimise for my use case – Anentropic What is the index in general? Wу specify ...
Akina's user avatar
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0 votes

clustered index detection with EXPLAIN statement

There is a rules set which allows to determine what index will be used as clustered one. But they needs in deep CREATE TABLE script scanning. There exists another way. Query INFORMATION_SCHEMA tables ...
Akina's user avatar
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1 vote

Difference between a unique clustered index and a clustered primary key?

Just dropping this here because I haven't seen it mentioned in other discussions on the same topic... Primary key constraints in Sql Server have to have a unique name database wide while index names ...
user1664043's user avatar
6 votes

Is default ordering affected by clustered index?

here's a demo Yano is of course correct about order not being guaranteed without an order by. This has been written about 6 trillion times across the span of the internet for most if not all of the ...
Erik Darling's user avatar
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4 votes

Is default ordering affected by clustered index?

Without ORDER BY clause, the order of rows is not guaranteed. It could be the same one day, and different another day. Is default ordering affected by clustered index? Oftentimes, the data are read ...
Yano_of_Queenscastle's user avatar

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