dev/changelog/7.1.0.md

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## [7.1.0](https://github.com/apache/datafusion/tree/7.1.0) (2022-04-10)

[Full Changelog](https://github.com/apache/datafusion/compare/7.0.0...7.1.0)

**Fixed bugs:**

- By default, use only 1000 rows to infer the schema [\#2159](https://github.com/apache/datafusion/pull/2159)