Drizzledump not preserving FLOAT precisions during MySQL migration if no decimal value given

[Patrick Crews]

For this MySQL table:
NOTE the columns float2 and float2_1:

CREATE TABLE float_table(description TEXT,
col_float_unsigned float unsigned,
col_float0 float(0),
col_float1 float(1),
col_float2 float(2,0),
col_float2_1 float(2),
col_float float,
col_float_5_2 float(5,2),
col_float_23 float(23,1),
col_float_not_null float NOT NULL,
col_float_default_null float DEFAULT NULL,
col_float_default float(5,2) DEFAULT 999.99
) ENGINE=MyISAM;

We get this Drizzledump output:
NOTE how we lost precision information for float0,float1, and float2_1.

CREATE TABLE `float_table` (
  `description` TEXT COLLATE utf8_general_ci DEFAULT NULL,
  `col_float_unsigned` FLOAT UNSIGNED DEFAULT NULL,
  `col_float0` DOUBLE DEFAULT NULL,
  `col_float1` DOUBLE DEFAULT NULL,
  `col_float2` DOUBLE(2,0) DEFAULT NULL,
  `col_float2_1` DOUBLE DEFAULT NULL,
  `col_float` DOUBLE DEFAULT NULL,
  `col_float_5_2` DOUBLE(5,2) DEFAULT NULL,
  `col_float_23` DOUBLE(23,1) DEFAULT NULL,
  `col_float_not_null` DOUBLE NOT NULL,
  `col_float_default_null` DOUBLE DEFAULT NULL,
  `col_float_default` DOUBLE(5,2) DEFAULT '999.99'
) ENGINE='InnoDB' COLLATE='utf8_general_ci';

[Andrew Hutchings (linuxjedi)]

Precision on its own is invalid in Drizzle without a scale. So I developed drizzledump to ignore the values if one is missing. In MySQL the scale defaults to 0. Correct behaviour should be to change FLOAT(2) to DOUBLE(2,0)