pepijnve commented on code in PR #17813:
URL: https://github.com/apache/datafusion/pull/17813#discussion_r2542275749
##########
datafusion/expr-common/src/interval_arithmetic.rs:
##########
@@ -1852,8 +1932,18 @@ impl NullableInterval {
}
}
- /// Compute the logical conjunction of this (boolean) interval with the
- /// given boolean interval.
+ /// Returns an interval representing the set of possible values after
applying SQL
+ /// three-valued logical AND on each combination of possible values from
`self` and `other`.
+ ///
+ /// This method uses the following truth table.
+ ///
+ /// ```text
+ /// A ∧ B │ F U T
+ /// ──────┼──────
+ /// F │ F F F
Review Comment:
That's the left column
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