alamb commented on code in PR #22592:
URL: https://github.com/apache/datafusion/pull/22592#discussion_r3319995515
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datafusion/expr-common/src/casts.rs:
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@@ -31,7 +31,31 @@ use arrow::datatypes::{
use arrow::temporal_conversions::{MICROSECONDS, MILLISECONDS, NANOSECONDS};
use datafusion_common::ScalarValue;
-/// Convert a literal value from one data type to another
+/// Convert a literal [`ScalarValue`] to `target_type`, preserving the exact
value.
Review Comment:
the exact value part was very unclear to me at first
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