I'm trying to generate a little more performance from a particular table full of hundreds of thousands of rows. There are a few VARCHAR
fields that I'm converting to CHAR
.
I'm aware that I won't get the speed benefit of switching to fixed length CHAR
fields if any variable length rows exist in my table. However, when I search for a list of all fixed length–or variable length–field types for MySQL, I come up short. My table contains a few DECIMAL
and DATETIME
fields. I'm somewhat sure the latter is fixed, but the former? Not sure.
Does anyone have a definitive list?