Make decimal to string cast fully compatible with Spark #1068
Description
What is the problem the feature request solves?
When casting a Decimal(18,10) with value 0 to a string, Spark produces 0E-10, but Comet produces 0.000000000000000000 (18 zeroes after the decimal place).
See test("cast StructType to StringType") in CometCastSuite for more details.
Describe the potential solution
No response
Additional context
No response