[jira] [Created] (HIVE-3820) Consider creating a literal like "D" or "BD" for representing Decimal type constants

["Mark Grover (JIRA)" <ji...@apache.org>]

Mark Grover created HIVE-3820:
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             Summary: Consider creating a literal like "D" or "BD" for representing Decimal type constants
                 Key: HIVE-3820
                 URL: https://issues.apache.org/jira/browse/HIVE-3820
             Project: Hive
          Issue Type: Bug
            Reporter: Mark Grover


When the HIVE-2693 gets committed, users are going to see this behavior:
{code}
hive> select cast(3.14 as decimal) from decimal_3 limit 1;
3.140000000000000124344978758017532527446746826171875
{code}

That's intuitively incorrect but is the case because 3.14 (double) is being converted to BigDecimal because of which there is a precision mismatch.

We should consider creating a new literal for expressing constants of Decimal type as Gunther suggested in HIVE-2693.



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