fix: satisfy clippy with feature-gated usage of DECIMAL_BINARY_FORMAT_TYPE

Author: RaphDal

questdb-rs/src/ingress/decimal.rs

@@ -125,6 +125,7 @@ impl DecimalSerializer for &str {
     }
 }
 
+#[cfg(any(feature = "rust_decimal", feature = "bigdecimal"))]
 use crate::ingress::DECIMAL_BINARY_FORMAT_TYPE;
 
 /// Helper to format decimal values directly to a byte buffer without heap allocation.
@@ -160,11 +161,6 @@ impl DecimalSerializer for &rust_decimal::Decimal {
         // rust_decimal::Decimal guarantees:
         // - MAX_SCALE is 28, which is within QuestDB's limit of 76
         // - Mantissa is always 96 bits (12 bytes), never exceeds this size
-        debug_assert!(rust_decimal::Decimal::MAX_SCALE <= 76);
-        debug_assert!(
-            rust_decimal::Decimal::MAX.mantissa() & 0x7FFF_FFFF_0000_0000_0000_0000_0000_0000i128
-                == 0
-        );
 
         out.push(self.scale() as u8);
 

questdb-rs/src/ingress/mod.rs

@@ -74,6 +74,7 @@ pub const MAX_ARRAY_DIM_LEN: usize = 0x0FFF_FFFF; // 1 << 28 - 1
 
 pub(crate) const ARRAY_BINARY_FORMAT_TYPE: u8 = 14;
 pub(crate) const DOUBLE_BINARY_FORMAT_TYPE: u8 = 16;
+#[allow(dead_code)]
 pub(crate) const DECIMAL_BINARY_FORMAT_TYPE: u8 = 23;
 
 /// The version of InfluxDB Line Protocol used to communicate with the server.

questdb-rs/src/tests/decimal.rs

@@ -22,7 +22,7 @@
  *
  ******************************************************************************/
 
-use crate::ingress::{Buffer, DecimalSerializer, ProtocolVersion, DECIMAL_BINARY_FORMAT_TYPE};
+use crate::ingress::{Buffer, DecimalSerializer, ProtocolVersion};
 use crate::tests::TestResult;
 use crate::ErrorCode;
 
@@ -140,6 +140,8 @@ fn test_str_rejects_backslash() -> TestResult {
 #[cfg(any(feature = "rust_decimal", feature = "bigdecimal"))]
 fn parse_binary_decimal(bytes: &[u8]) -> (u8, i128) {
     // Validate format markers
+
+    use crate::ingress::DECIMAL_BINARY_FORMAT_TYPE;
     assert_eq!(bytes[0], b'=', "Missing binary format marker");
     assert_eq!(
         bytes[1], DECIMAL_BINARY_FORMAT_TYPE,