[BUG] Many decimal integration test failures for 0.5

[jlowe]

A number of unit tests failed on Databricks for the 0.5 nightly integration tests. Some excerpts:

01:01:19  =========================== short test summary info ============================
01:01:19  FAILED ../../src/main/python/array_test.py::test_orderby_array_unique[Array(Decimal(7,-3))]
01:01:19  FAILED ../../src/main/python/array_test.py::test_orderby_array_unique[Array(Decimal(7,7))]
01:01:19  FAILED ../../src/main/python/array_test.py::test_orderby_array_unique[Array(Decimal(7,3))]
01:01:19  FAILED ../../src/main/python/array_test.py::test_orderby_array_unique[Array(Decimal(12,2))]
01:01:19  FAILED ../../src/main/python/array_test.py::test_orderby_array_unique[Array(Decimal(18,0))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_any[Array(Decimal(7,-3))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_any[Array(Decimal(18,0))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_any[Array(Decimal(7,7))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_all[Array(Decimal(7,-3))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_any[Array(Decimal(7,3))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_all[Array(Decimal(7,3))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_any[Array(Decimal(12,2))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_all[Array(Decimal(7,7))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_all[Array(Decimal(18,0))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter[Array(Decimal(7,7))] - ...
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_dropna_all[Array(Decimal(12,2))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter[Array(Decimal(7,3))] - ...
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter[Array(Decimal(7,-3))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter[Array(Decimal(18,0))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter_with_project[Array(Decimal(7,-3))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter_with_project[Array(Decimal(7,7))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter[Array(Decimal(12,2))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter_with_project[Array(Decimal(12,2))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter_with_project[Array(Decimal(7,3))]
01:01:19  FAILED ../../src/main/python/cmp_test.py::test_filter_with_project[Array(Decimal(18,0))]
01:01:19  FAILED ../../src/main/python/window_function_test.py::test_window_aggs_for_rows_collect_list_no_nulls[IGNORE_ORDER({'local': True})]

[jlowe]

Detailed log of test errors:
test_errors.txt

[revans2]

All of these tests just failed for me in a pre-commit build for 0.5. It feels almost like there is a change in cudf that is causing this I am going to try and track down what is happening.

[revans2]

Yup I was able to reproduce the failures on the bast 0.5 branch locally.

[revans2]

I went back a couple of days on the plugin and it still fails, this looks very much like a cudf issue.

[revans2]

Yup when I got back to 43b44e1 in cudf all of the tests pass again. I will start to track down the change that caused this to happen

[jlowe]

This should be fixed when rapidsai/cudf#7449 is merged and a new cudf-0.19 snapshot is published.

[revans2]

Dependency is merged and tests appear to be passing.