Symfony 1.4 setter type double precision

I want to save a number with 14 decimal places, but symfony only saves 6. How can I control this:

$loc->setSinRadLon(0.73946213661883);

In the schema the column looks like:

sin_rad_lon: { type: double(), scale: 14, notnull: true }

The DB stetting is:

sin_rad_lon     double(18,14)

In the DB the column value is: 0.739462开发者_运维知识库00000000 (8 numbers are cut).

(I just tried ini_set("precision", "14") but it does not solve all problems.)

Thx for your help.

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try to change at your schema the "length" of the datatype for example type: double(X), scale: Y