tables provide information about server status variables. Their
contents correspond to the information produced by the
STATUS statements (see Section 188.8.131.52, “SHOW STATUS Syntax”).
VARIABLE_VALUEcolumn for each of these tables is defined as
VARCHAR(1024). Previously, this column had the data type
DECIMAL(22,7), but was changed to
VARCHAR(20480)in 5.1.19 to avoid loss of data when working with status variables whose values were strings, and shortened to
VARCHAR(1024)in 5.1.31 to improve performance.