Comments - Subquery Optimizations Map
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Hello, I was wondering whether you could help me figure out what boxes with both yellow and blue colors represent (for example, “Table Pullout”, “FirstMatch”) and whether the portion of blue color has any meaning. I got confused because I would assume that blue color (MySQL 5.6 only) implies the yellow one (MariaDB 5.5 and MySQL 5.6). Thank you very much for your help!