liurenjie1024 commented on code in PR #945:
URL: https://github.com/apache/iceberg-rust/pull/945#discussion_r1954049149
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crates/integrations/datafusion/src/physical_plan/expr_to_predicate.rs:
##########
@@ -119,7 +122,53 @@ fn to_iceberg_predicate(expr: &Expr) -> TransformedResult {
_ => TransformedResult::NotTransformed,
}
}
- Expr::Cast(c) => to_iceberg_predicate(&c.expr),
+ Expr::Cast(c) => {
+ if DataType::Date32 == c.data_type || DataType::Date64 ==
c.data_type {
Review Comment:
> This is less about simplification, rather than extracting the right
information for Iceberg to optimize.
Maybe the word simplification is a little confusing, I think constant
folding is better here. The expressions in tests should be simplified by
constant folding and replaced with a literal, which could be processed by
iceberg.
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