alamb commented on code in PR #3512:
URL: https://github.com/apache/arrow-datafusion/pull/3512#discussion_r973572616
##########
datafusion/core/src/dataframe.rs:
##########
@@ -733,6 +734,29 @@ impl DataFrame {
)))
}
}
+
+ /// Cache DataFrame as a memory table
Review Comment:
```suggestion
/// Cache DataFrame as a memory table.
///
/// Normally, DataFrames are lazily evaluated only when `collect()` is
called.
/// This function evaluates the `DataFrame` immediately and caches the
results
/// in memory.
```
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