Bitrix 1,300,000 elements in a highload infoblock? Will it pull?

Question

1C-Bitrix

Good afternoon, you need to implement a form to search for an element in the table, by number.
Everything can be put in one table, but the trouble is, it is one and a half lines. So I’m thinking whether the highload will pull the half-lyama infoblock of elements? The DB will not be buggy? How fast will the data twitch from there?

Answer 1

Well, look. I hope there is an index on the field. If without JOIN, then it's better.
You do not need to pull all the entries in the infoblock, right?