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| author | Reynold Xin <rxin@databricks.com> | 2015-07-01 21:14:13 -0700 |
|---|---|---|
| committer | Reynold Xin <rxin@databricks.com> | 2015-07-01 21:14:13 -0700 |
| commit | 9fd13d5613b6d16a78d97d4798f085b56107d343 (patch) | |
| tree | 9687bc3c9da9a72e5ae3814972f5a72c0bb7181f /sql/core | |
| parent | 3a342dedc04799948bf6da69843bd1a91202ffe5 (diff) | |
| download | spark-9fd13d5613b6d16a78d97d4798f085b56107d343.tar.gz spark-9fd13d5613b6d16a78d97d4798f085b56107d343.tar.bz2 spark-9fd13d5613b6d16a78d97d4798f085b56107d343.zip | |
[SPARK-8770][SQL] Create BinaryOperator abstract class.
Our current BinaryExpression abstract class is not for generic binary expressions, i.e. it requires left/right children to have the same type. However, due to its name, contributors build new binary expressions that don't have that assumption (e.g. Sha) and still extend BinaryExpression.
This patch creates a new BinaryOperator abstract class, and update the analyzer o only apply type casting rule there. This patch also adds the notion of "prettyName" to expressions, which defines the user-facing name for the expression.
Author: Reynold Xin <rxin@databricks.com>
Closes #7174 from rxin/binary-opterator and squashes the following commits:
f31900d [Reynold Xin] [SPARK-8770][SQL] Create BinaryOperator abstract class.
fceb216 [Reynold Xin] Merge branch 'master' of github.com:apache/spark into binary-opterator
d8518cf [Reynold Xin] Updated Python tests.
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