feat: Support parsing date-only timestamp strings

datafusion-cli/Cargo.toml

@@ -28,7 +28,7 @@ repository = "https://github.com/apache/arrow-datafusion"
 rust-version = "1.59"
 
 [dependencies]
-arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["chrono-tz"] }
+arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["chrono-tz"] }
 clap = { version = "3", features = ["derive", "cargo"] }
 datafusion = { path = "../datafusion/core", version = "7.0.0", features = ["parquet-all-compressions"] }
 dirs = "4.0.0"

datafusion-examples/Cargo.toml

@@ -34,7 +34,7 @@ path = "examples/avro_sql.rs"
 required-features = ["datafusion/avro"]
 
 [dev-dependencies]
-arrow-flight = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5" }
+arrow-flight = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc" }
 async-trait = "0.1.41"
 datafusion = { path = "../datafusion/core" }
 futures = "0.3"

datafusion/common/Cargo.toml

@@ -40,10 +40,10 @@ pyarrow = ["pyo3"]
 parquet-all-compressions = ["parquet/snap", "parquet/brotli", "parquet/flate2", "parquet/lz4", "parquet/zstd"]
 
 [dependencies]
-arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["prettyprint", "chrono-tz"] }
+arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["prettyprint", "chrono-tz"] }
 avro-rs = { version = "0.13", features = ["snappy"], optional = true }
 cranelift-module = { version = "0.82.0", optional = true }
 ordered-float = "2.10"
-parquet = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["arrow", "base64"], default-features = false, optional = true }
+parquet = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["arrow", "base64"], default-features = false, optional = true }
 pyo3 = { version = "0.16", optional = true }
 sqlparser = { git = 'https://github.com/cube-js/sqlparser-rs.git', rev = "33cf41ae4ddd0c409f52fd72fb5101ae000aad53" }

datafusion/core/Cargo.toml

@@ -57,7 +57,7 @@ parquet-all-compressions = ["datafusion-common/parquet-all-compressions", "parqu
 
 [dependencies]
 ahash = { version = "0.7", default-features = false }
-arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["prettyprint", "chrono-tz"] }
+arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["prettyprint", "chrono-tz"] }
 async-trait = "0.1.41"
 avro-rs = { version = "0.13", features = ["snappy"], optional = true }
 chrono = { version = "0.4.31", default-features = false }
@@ -76,7 +76,7 @@ num_cpus = "1.13.0"
 ordered-float = "2.10"
 parking_lot = "0.12"
 # All compression codes are disabled by default in our fork because it increases compilation time significantly.
-parquet = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["arrow", "base64"], default-features = false }
+parquet = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["arrow", "base64"], default-features = false }
 paste = "^1.0"
 pin-project-lite= "^0.2.7"
 pyo3 = { version = "0.16", optional = true }

datafusion/core/fuzz-utils/Cargo.toml

@@ -23,6 +23,6 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["prettyprint", "chrono-tz"] }
+arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["prettyprint", "chrono-tz"] }
 env_logger = "0.9.0"
 rand = "0.8"

datafusion/core/tests/sql/timestamp.rs

@@ -403,6 +403,39 @@ async fn to_timestamp_named_timezone() -> Result<()> {
     Ok(())
 }
 
+#[tokio::test]
+async fn to_timestamp_date_only() -> Result<()> {
+    // A date-only string parses as midnight local time, matching
+    // PostgreSQL's behavior for date-only timestamp input. Midnight local
+    // time converts to a machine-timezone-dependent UTC instant, so instead
+    // of asserting a literal value, assert equivalence with the explicit
+    // `00:00:00` form, which follows the same local-time convention.
+    let ctx = SessionContext::new();
+
+    let cases = vec![
+        (
+            "to_timestamp('2026-06-24')",
+            "to_timestamp('2026-06-24 00:00:00')",
+        ),
+        (
+            "CAST('2026-06-24' AS TIMESTAMP)",
+            "CAST('2026-06-24 00:00:00' AS TIMESTAMP)",
+        ),
+    ];
+
+    for (expr, equivalent_expr) in cases {
+        let sql = format!(
+            "SELECT {} IS NOT NULL AND {} = {} AS eq",
+            expr, expr, equivalent_expr
+        );
+        let actual = execute_to_batches(&ctx, &sql).await;
+
+        let expected = ["+------+", "| eq   |", "+------+", "| true |", "+------+"];
+        assert_batches_eq!(expected, &actual);
+    }
+    Ok(())
+}
+
 #[tokio::test]
 async fn to_timestamp_millis() -> Result<()> {
     let ctx = SessionContext::new();

datafusion/cube_ext/Cargo.toml

@@ -35,7 +35,7 @@ name = "cube_ext"
 path = "src/lib.rs"
 
 [dependencies]
-arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["prettyprint", "chrono-tz"] }
+arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["prettyprint", "chrono-tz"] }
 chrono = { version = "0.4.16", package = "chrono", default-features = false, features = ["clock"] }
 datafusion-common = { path = "../common", version = "7.0.0" }
 datafusion-expr = { path = "../expr", version = "7.0.0" }

datafusion/expr/Cargo.toml

@@ -36,6 +36,6 @@ path = "src/lib.rs"
 
 [dependencies]
 ahash = { version = "0.7", default-features = false }
-arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["prettyprint", "chrono-tz"] }
+arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["prettyprint", "chrono-tz"] }
 datafusion-common = { path = "../common", version = "7.0.0" }
 sqlparser = { git = 'https://github.com/cube-js/sqlparser-rs.git', rev = "33cf41ae4ddd0c409f52fd72fb5101ae000aad53" }

datafusion/jit/Cargo.toml

@@ -36,7 +36,7 @@ path = "src/lib.rs"
 jit = []
 
 [dependencies]
-arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["chrono-tz"] }
+arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["chrono-tz"] }
 cranelift = "0.82.0"
 cranelift-jit = "0.82.0"
 cranelift-module = "0.82.0"

datafusion/physical-expr/Cargo.toml

@@ -40,7 +40,7 @@ unicode_expressions = ["unicode-segmentation"]
 
 [dependencies]
 ahash = { version = "0.7", default-features = false }
-arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "de57e9799dcfde7bdd02885e63b65e3499f192e5", features = ["prettyprint", "chrono-tz"] }
+arrow = { git = 'https://github.com/cube-js/arrow-rs.git', rev = "837ddde06037034056b9faced3d8ea7073529cfc", features = ["prettyprint", "chrono-tz"] }
 blake2 = { version = "^0.10.2", optional = true }
 blake3 = { version = "1.0", optional = true }
 chrono = { version = "0.4.31", default-features = false }