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Mar 14, 2025
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Add blog link to EquivalenceProperties docs #15215

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6 changes: 5 additions & 1 deletion datafusion/physical-expr/src/equivalence/properties/mod.rs
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Expand Up @@ -52,7 +52,7 @@ use datafusion_physical_expr_common::utils::ExprPropertiesNode;
use indexmap::IndexSet;
use itertools::Itertools;

/// A `EquivalenceProperties` object stores information known about the output
/// `EquivalenceProperties` stores information about the output
/// of a plan node, that can be used to optimize the plan.
///
/// Currently, it keeps track of:
Expand All @@ -61,6 +61,10 @@ use itertools::Itertools;
/// - Constants expressions: expressions that are known to contain a single
/// constant value.
///
/// Please see the [Using Ordering for Better Plans] blog for more details.
///
/// [Using Ordering for Better Plans]: https://datafusion.apache.org/blog/2025/03/11/ordering-analysis/
///
/// # Example equivalent sort expressions
///
/// Consider table below:
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