a78a904641
## What changes were proposed in this pull request?
test("withColumn doesn't invalidate cached dataframe") in CachedTableSuite doesn't not work because:
The UDF is executed and test count incremented when "df.cache()" is called and the subsequent "df.collect()" has no effect on the test result.
This PR fixed this test and add another test for caching UDF.
## How was this patch tested?
Add new tests.
Author: Li Jin <ice.xelloss@gmail.com>
Closes #21531 from icexelloss/fix-cache-test.
|
||
|---|---|---|
| .. | ||
| benchmarks | ||
| src | ||
| pom.xml | ||