From 60b83d9362191d54407ad6cbc56164a20d7cedf9 Mon Sep 17 00:00:00 2001
From: Lei Xu <eddyxu@gmail.com>
Date: Fri, 14 Jul 2023 20:51:28 -0700
Subject: [PATCH 1/3] expose JsonSchema

---
 rust/src/arrow/json.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/rust/src/arrow/json.rs b/rust/src/arrow/json.rs
index 6726e3342b..a22d452834 100644
--- a/rust/src/arrow/json.rs
+++ b/rust/src/arrow/json.rs
@@ -206,8 +206,9 @@ impl TryFrom<&JsonField> for Field {
     }
 }
 
+/// JSON representation of a Apache Arrow [Schema].
 #[derive(Serialize, Deserialize, Debug)]
-struct JsonSchema {
+pub struct JsonSchema {
     fields: Vec<JsonField>,
 
     #[serde(skip_serializing_if = "Option::is_none")]

From c8df71c7c140f72536216840f93f92ba5d8fd728 Mon Sep 17 00:00:00 2001
From: Lei Xu <eddyxu@gmail.com>
Date: Fri, 14 Jul 2023 20:53:51 -0700
Subject: [PATCH 2/3] do not make json optional

---
 rust/Cargo.toml   | 5 ++---
 rust/src/arrow.rs | 1 -
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/rust/Cargo.toml b/rust/Cargo.toml
index c755e32be4..a0a12f9a60 100644
--- a/rust/Cargo.toml
+++ b/rust/Cargo.toml
@@ -73,8 +73,8 @@ num-traits = "0.2"
 ordered-float = "3.6.0"
 snafu = "0.7.4"
 log = "0"
-serde_json = { version = "1", optional = true }
-serde = { version = "^1", optional = true }
+serde_json = { version = "1" }
+serde = { version = "^1" }
 
 [target.'cfg(target_os = "macos")'.dependencies]
 accelerate-src = { version = "0.3.2", optional = true }
@@ -102,7 +102,6 @@ dirs = "5.0.0"
 [features]
 cli = ["clap"]
 opq = ["cblas", "lapack", "openblas-src", "accelerate-src"]
-json = ["serde_json", "serde"]
 
 [[bin]]
 name = "lq"
diff --git a/rust/src/arrow.rs b/rust/src/arrow.rs
index 731d0a714a..e471e5e2c8 100644
--- a/rust/src/arrow.rs
+++ b/rust/src/arrow.rs
@@ -33,7 +33,6 @@ pub use kernels::*;
 pub mod schema;
 pub use schema::*;
 pub mod bfloat16;
-#[cfg(feature = "json")]
 pub mod json;
 
 pub trait DataTypeExt {

From 0de406b399ba03f5b7c84f8ff9fd2417f6a9357c Mon Sep 17 00:00:00 2001
From: Lei Xu <eddyxu@gmail.com>
Date: Fri, 14 Jul 2023 20:58:48 -0700
Subject: [PATCH 3/3] fix

---
 python/Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python/Cargo.toml b/python/Cargo.toml
index 1b1286f7e6..9f1e61ccf8 100644
--- a/python/Cargo.toml
+++ b/python/Cargo.toml
@@ -19,7 +19,7 @@ chrono = "0.4.23"
 env_logger = "0.10"
 futures = "0.3"
 half = { version = "2.1", default-features = false, features = ["num-traits"] }
-lance = { path = "../rust", features = ["json"] }
+lance = { path = "../rust" }
 log = "0.4"
 prost = "0.11"
 pyo3 = { version = "0.19", features = ["extension-module", "abi3-py38"] }