@@ -50,7 +50,6 @@ datafusion-functions-aggregate-common = { workspace = true }
 datafusion-macros = { workspace = true }
 datafusion-physical-expr = { workspace = true }
 datafusion-physical-expr-common = { workspace = true }
-foldhash = "0.2"
 half = { workspace = true }
 log = { workspace = true }
 num-traits = { workspace = true }
 
@@ -86,9 +86,8 @@ where
         }
     }
 
-    /// choice of hash function: foldhash is already an dependency
-    /// and it fits the requirements of being a 64bit hash with
-    /// reasonable performance.
+    /// The HLL hash state is shared through `datafusion_common::hash_utils`
+    /// so sketches remain compatible across accumulators.
     #[inline]
     fn hash_value(&self, obj: &T) -> u64 {
         HLL_HASH_STATE.hash_one(obj)
Original file line number	Diff line number	Diff line change
`@@ -86,9 +86,8 @@ where`
`86`	`86`	`}`
`87`	`87`	`}`
`88`	`88`
`89`		`- /// choice of hash function: foldhash is already an dependency`
`90`		`- /// and it fits the requirements of being a 64bit hash with`
`91`		`- /// reasonable performance.`
	`89`	+ /// The HLL hash state is shared through `datafusion_common::hash_utils`
	`90`	`+ /// so sketches remain compatible across accumulators.`
`92`	`91`	`#[inline]`
`93`	`92`	`fn hash_value(&self, obj: &T) -> u64 {`
`94`	`93`	`HLL_HASH_STATE.hash_one(obj)`