feat(cubesql): Support round() function with two parameters (#9594)

Author: mcheshkov

packages/cubejs-backend-native/Cargo.lock

@@ -10,7 +10,7 @@ homepage = "https://cube.dev"
 
 [dependencies]
 arc-swap = "1"
-datafusion = { git = 'https://github.com/cube-js/arrow-datafusion.git', rev = "1a612fc26f762f3837ecf26df2e83ba38f11a8a2", default-features = false, features = [
+datafusion = { git = 'https://github.com/cube-js/arrow-datafusion.git', rev = "ce2af2c8fce31f365050471f7c6e80786d73b962", default-features = false, features = [
     "regex_expressions",
     "unicode_expressions",
 ] }

rust/cubenativeutils/Cargo.lock

@@ -364,6 +364,7 @@ macro_rules! variant_field_struct {
                 BuiltinScalarFunction::Log => "Log",
                 BuiltinScalarFunction::Log10 => "Log10",
                 BuiltinScalarFunction::Log2 => "Log2",
+                BuiltinScalarFunction::Power => "Power",
                 BuiltinScalarFunction::Round => "Round",
                 BuiltinScalarFunction::Signum => "Signum",
                 BuiltinScalarFunction::Sin => "Sin",

rust/cubesql/Cargo.lock

@@ -0,0 +1,9 @@
+---
+source: cubesql/src/compile/test/test_df_execution.rs
+expression: "execute_query(query.to_string(), DatabaseProtocol::PostgreSQL).await.unwrap()"
+---
++----------------------+----------------------------------+-----------------------------------+
+| round(Float64(42.4)) | round(Float64(42.4382),Int64(2)) | round(Float64(1234.56),Int64(-1)) |
++----------------------+----------------------------------+-----------------------------------+
+| 42                   | 42.44                            | 1230                              |
++----------------------+----------------------------------+-----------------------------------+

rust/cubesql/cubesql/Cargo.toml

@@ -91,3 +91,24 @@ GROUP BY
             .unwrap()
     );
 }
+
+/// See https://www.postgresql.org/docs/current/functions-math.html
+#[tokio::test]
+async fn test_round() {
+    init_testing_logger();
+
+    // language=PostgreSQL
+    let query = r#"
+SELECT
+    round(42.4), -- 42
+    round(42.4382, 2), -- 42.44
+    round(1234.56, -1) -- 1230
+;
+        "#;
+
+    insta::assert_snapshot!(
+        execute_query(query.to_string(), DatabaseProtocol::PostgreSQL)
+            .await
+            .unwrap()
+    );
+}