Add key partition prefix to ScyllaDB schema

Author: ndr-ds

Cargo.lock

@@ -272,6 +272,7 @@ wasmtimer = "0.2.0"
 web-sys = "0.3.69"
 web-time = "1.1.0"
 wit-bindgen = "0.24.0"
+xxhash-rust = { version = "0.8.15", features = ["xxh3"] }
 zstd = "0.13.2"
 
 linera-base = { version = "0.15.0", path = "./linera-base" }

Cargo.toml

@@ -26,7 +26,7 @@ indexeddb = ["indexed_db_futures", "wasm-bindgen"]
 web-default = ["web", "indexeddb"]
 
 dynamodb = ["aws-config", "aws-sdk-dynamodb", "aws-smithy-types"]
-scylladb = ["scylla"]
+scylladb = ["scylla", "xxhash-rust"]
 
 [dependencies]
 anyhow.workspace = true
@@ -59,6 +59,7 @@ thiserror.workspace = true
 tokio = { workspace = true, features = ["rt", "sync"] }
 tracing.workspace = true
 trait-variant.workspace = true
+xxhash-rust = { workspace = true, optional = true }
 
 [target.wasm32-unknown-unknown.dependencies]
 indexed_db_futures = { workspace = true, optional = true }