Eli wrote:
Is it possible, or probably will be possible, to define indexes spanned on more than one table? I mean that if I have column col_a from table tbl_A, and col_b from table tbl_B.. Can I define a KEY with both those columns? Where will the index be saved?
Just out of curiosity and to understand things better: what would be the use of such an index? In what circumstances would one need it?
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