planga82 commented on a change in pull request #29837:
URL: https://github.com/apache/spark/pull/29837#discussion_r499373510
##########
File path: docs/sql-ref-datatypes.md
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@@ -314,3 +314,49 @@ SELECT COUNT(*), c2 FROM test GROUP BY c2;
| 3| Infinity|
+---------+---------+
```
+
+#### Data type compatibility
+
+The following is the hierarchy of data type compatibility and the possible
implicit conversions that can be made. In an operation involving different and
compatible data types, these will be promoted to the lowest common top type to
perform the operation.
Review comment:
Thank you very much! I didn't know about Ansi property. I will redo the
PR with this information and try to explain it with a better structure and also
include a screenshot
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