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Is it better to index rows individually, or as a whole group?

 

Depends of your needs.

If most your selects are filtering by only one field then rows individually else whole group.

Tip: If you are using a index with more fields and your query don't use first field of index then index won't be used.

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In my opinion he wants to know is it better to make few indexes with one row each or one index with few rows.

Right, that's the part that doesn't make sense.

 

EDIT: unless row actually means "column".

 

str_replace("In my opinion he wants to know is it better to make few indexes with one row each or one index with few rows.", "row", "collumn")

 

My blunder  ::)

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