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Posted to gitbox@hive.apache.org by GitBox <gi...@apache.org> on 2020/01/28 01:28:13 UTC
[GitHub] [hive] ramesh0201 commented on issue #880: HIVE-22515 Support cast
to decimal64 in Vectorization
ramesh0201 commented on issue #880: HIVE-22515 Support cast to decimal64 in Vectorization
URL: https://github.com/apache/hive/pull/880#issuecomment-579036627
Whenever we have an expression like `long column <compare/arithmetic operator> decimal column`, we always cast long to decimal even if the decimal column can be represented as decimal64. This prevents us from using Deicmal64 class of operations that will be faster than the equivalent Decimal class of operations. This Jira will implements cast from long to decimal64 that can help in more optimizations in the decimal64 operations.
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