Decimal and Double issues in DuckDb

[liun03]

We use DuckDb as a cache in pre-aggregation and there are some rounding issues with decimals.

When we parse a statement, we need an option ParsingOptions to decide the decimal casting strategy.
Sample SQL:

SELECT * FROM MY_TABLE WHERE DECIMAL_FIELD = 1.23

AS_DOUBLE: rewritten as SELECT * FROM MY_TABLE WHERE DECIMAL_FIELD = 1.23E0
AS_DECIMAL: rewritten as SELECT * FROM MY_TABLE WHERE DECIMAL_FIELD = DECIMAL '1.23'