[IMPALA-4924] Make DECIMAL_V2 the default mode

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.9.0
• Fix Version/s: Impala 3.0
• Component/s: Frontend
• Labels: compatibility include-in-v3 incompatibility
• Epic Link: Numeric Datatype Conversions
• Target Version: Impala 3.0
• Assignee: Taras Bobrovytsky
• Reporter: Daniel Hecht
• Created: 13/Feb/17 20:40
• Updated: 17/Sep/18 20:17
• Resolved: 05/Feb/18 22:57

Description

The next time Impala can make compatibility breaking changes, we should make DECIMAL_V2 the default DECIMAL behavior and, later, remove the V1 code.

Issue Links

• is blocked by: IMPALA-4939 DECIMAL multiply overflows early
• is blocked by: IMPALA-4940 DECIMAL V2 multiply result type
• is blocked by: IMPALA-4964 Decimal modulo operator is overflowing
• is blocked by: IMPALA-5014 DECIMAL V2 round when casting to/from DECIMAL, part 2
• is blocked by: IMPALA-5017 Error on decimal overflow (rather than warn)
• is blocked by: IMPALA-5018 DECIMAL V2: Error on decimal divide by 0
• is blocked by: IMPALA-5019 DECIMAL V2 add/sub result type
• is blocked by: IMPALA-6231 Do some fuzz testing of decimal v2 operations
• is blocked by: IMPALA-5478 run test_tpcds_queries with DECIMAL_V2=true
• is blocked by: IMPALA-3437 Consider changing arithmetic conversions to produce decimal in more cases
• is blocked by: IMPALA-3436 Round(double, int) should return decimal