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new d83a290d1d minor: make dict_from_values public (#17376)
d83a290d1d is described below
commit d83a290d1d534f7db9849b11c39d2b0a289a62e4
Author: Parth Chandra <par...@apache.org>
AuthorDate: Wed Sep 3 19:46:08 2025 -0700
minor: make dict_from_values public (#17376)
* minor: make dict_from_values public
* Update datafusion/common/src/scalar/mod.rs
Co-authored-by: Oleks V <comph...@users.noreply.github.com>
* fix format
* one more format
---------
Co-authored-by: Oleks V <comph...@users.noreply.github.com>
---
datafusion/common/src/scalar/mod.rs | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/datafusion/common/src/scalar/mod.rs
b/datafusion/common/src/scalar/mod.rs
index f1b6b8385e..4d88f5a667 100644
--- a/datafusion/common/src/scalar/mod.rs
+++ b/datafusion/common/src/scalar/mod.rs
@@ -881,8 +881,21 @@ fn dict_from_scalar<K: ArrowDictionaryKeyType>(
))
}
-/// Create a dictionary array representing all the values in values
-fn dict_from_values<K: ArrowDictionaryKeyType>(
+/// Create a `DictionaryArray` from the provided values array.
+///
+/// Each element gets a unique key (`0..N-1`), without deduplication.
+/// Useful for wrapping arrays in dictionary form.
+///
+/// # Input
+/// ["alice", "bob", "alice", null, "carol"]
+///
+/// # Output
+/// `DictionaryArray<Int32>`
+/// {
+/// keys: [0, 1, 2, 3, 4],
+/// values: ["alice", "bob", "alice", null, "carol"]
+/// }
+pub fn dict_from_values<K: ArrowDictionaryKeyType>(
values_array: ArrayRef,
) -> Result<ArrayRef> {
// Create a key array with `size` elements of 0..array_len for all
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