Fix datafusion proto crate json feature (#15172)

* Fix datafusion proto crate json feature

Fix datafusion proto crate json feature

* Revert changes that remove the imports

* Enable CI check

---------

Co-authored-by: Andrew Lamb <[email protected]>

Author: Owen-CH-Leung

.github/workflows/rust.yml

@@ -131,9 +131,8 @@ jobs:
           rust-version: stable
       - name: Check datafusion-proto (no-default-features)
         run: cargo check --profile ci --all-targets --no-default-features -p datafusion-proto
-      # fails due to https://github.com/apache/datafusion/issues/15157
-      #- name: Check datafusion-proto (json)
-      #  run: cargo check --profile ci --all-targets --no-default-features -p datafusion-proto --features=json
+      - name: Check datafusion-proto (json)
+        run: cargo check --profile ci --all-targets --no-default-features -p datafusion-proto --features=json
       - name: Check datafusion-proto (parquet)
         run: cargo check --profile ci --all-targets --no-default-features -p datafusion-proto --features=parquet
       - name: Check datafusion-proto (avro)

datafusion/proto/Cargo.toml

@@ -39,7 +39,7 @@ name = "datafusion_proto"
 
 [features]
 default = ["parquet"]
-json = ["pbjson", "serde", "serde_json"]
+json = ["pbjson", "serde", "serde_json", "datafusion-proto-common/json"]
 parquet = ["datafusion/parquet", "datafusion-common/parquet"]
 avro = ["datafusion/avro", "datafusion-common/avro"]