Inconsistent use of import arrow:: vs crate::arrow::

[alamb]

Note: migrated from original JIRA: https://issues.apache.org/jira/browse/ARROW-9847

Both the DataFusion and Parquet crates have a mix of "import arrow::" and "import crate::arrow::" and we should standardize on one or the other.

 

Which ever standard we use should be enforced in build.rs so CI fails on PRs that do not follow the standard.

 

[alamb]

Comment from Krisztian Szucs(kszucs) @ 2020-10-07T22:24:40.743+0000:

[~andygrove] Is it going to make into 2.0? If not please postpone to 3.0.