<div dir="ltr">Hello,<div style><br></div><div>I'm trying to do some kind of poor man's composite keys with mnesia for some running statistical data. What should be faster to read and write - one table with a few indexes or separate tables with primary key only?<br>
</div><div><br></div><div style>There will be about 1-5 millions of records, approx the equal number of reads, inserts and deletes. </div><div style>The queries will be mostly "check if at least one record exists where given indexed field value = ...", "insert ...", and "delete all records where indexed field value=xxx". Total of 4 fields, so either one table with 4 indexed fields, or 4 tables with key_field + counter.</div>
<div style>The table(s) will be disc_only_copy, as RAM matters.</div></div>