Question

I am trying to include in a MYSQL SELECT query a limitation.
My database is structured in a way, that if a record is found in column one then only 5000 max records with the same name can be found after that one.

Example:

mark
..mark repeated 5000 times
john
anna
..other millions of names

So in this table it would be more efficent to find the first Mark, and continue to search maximum 5000 rows down from that one.

Is it possible to do something like this?

Answer 1

Just make a btree index on the name column:

CREATE INDEX name ON your_table(name) USING BTREE

and mysql will silently do exactly what you want each time it looks for a name.