AssHero opened a new pull request, #2702:
URL: https://github.com/apache/arrow-datafusion/pull/2702
# Which issue does this PR close?
Closes #2145
# Rationale for this change
Before generating the hash join logical plan, make sure the data types in
equal conditions are supported. Otherwise, try
cross join instead.
# What changes are included in this PR?
1. add can_hash func in datafusion/expr/src/utils.rs
2. use can_hash in datafusion/expr/src/logical_plan/builder.rs and
datafusion/sql/src/planner.rs to check if the data type is supported in
hashjoin or not
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