Deprecate legacy items

scylla-cql/Cargo.toml

@@ -18,7 +18,7 @@ tokio = { version = "1.34", features = ["io-util", "time"] }
 secrecy-08 = { package = "secrecy", version = "0.8", optional = true }
 snap = "1.0"
 uuid = "1.0"
-thiserror = "1.0"
+thiserror = "2.0.6"
 num-bigint-03 = { package = "num-bigint", version = "0.3", optional = true }
 num-bigint-04 = { package = "num-bigint", version = "0.4", optional = true }
 bigdecimal-04 = { package = "bigdecimal", version = "0.4", optional = true }

scylla-cql/src/frame/response/cql_to_rust.rs

@@ -10,6 +10,11 @@ use std::net::IpAddr;
 use thiserror::Error;
 use uuid::Uuid;
 
+#[deprecated(
+    since = "0.15.1",
+    note = "Legacy deserialization API is inefficient and is going to be removed soon"
+)]
+#[allow(deprecated)]
 #[derive(Error, Debug, Clone, PartialEq, Eq)]
 pub enum FromRowError {
     #[error("{err} in the column with index {column}")]
@@ -29,6 +34,10 @@ pub trait FromCqlVal<T>: Sized {
     fn from_cql(cql_val: T) -> Result<Self, FromCqlValError>;
 }
 
+#[deprecated(
+    since = "0.15.1",
+    note = "Legacy deserialization API is inefficient and is going to be removed soon"
+)]
 #[derive(Error, Debug, Clone, PartialEq, Eq)]
 pub enum FromCqlValError {
     #[error("Bad CQL type")]
@@ -99,6 +108,10 @@ impl<T: FromCqlVal<CqlValue>> FromCqlVal<Option<CqlValue>> for Option<T> {
 ///
 /// impl_from_cql_value_from_method!(MyBytes, into_my_bytes);
 /// ```
+#[deprecated(
+    since = "0.15.1",
+    note = "Legacy deserialization API is inefficient and is going to be removed soon"
+)]
 #[macro_export]
 macro_rules! impl_from_cql_value_from_method {
     ($T:ty, $convert_func:ident) => {

scylla-cql/src/frame/response/result.rs

@@ -2475,6 +2475,7 @@ mod tests {
         );
     }
 
+    #[allow(deprecated)]
     #[test]
     fn test_serialize_empty() {
         use crate::frame::value::Value;