chore: move query::Output to common-query module (#259)

* chore: move query::Output to common-query module

* chore: remove “query” dependency in client module

src/common/query/Cargo.toml

@@ -9,6 +9,7 @@ version="0.10"
 
 [dependencies]
 common-error = { path = "../error" }
+common-recordbatch = { path = "../recordbatch" }
 common-time = { path = "../time" }
 datafusion = { git = "https://github.com/apache/arrow-datafusion.git", branch = "arrow2", features = ["simd"] }
 datafusion-common = { git = "https://github.com/apache/arrow-datafusion.git", branch = "arrow2" }

src/common/query/src/lib.rs

@@ -1,6 +1,15 @@
+use common_recordbatch::{RecordBatches, SendableRecordBatchStream};
+
 pub mod columnar_value;
 pub mod error;
 mod function;
 pub mod logical_plan;
 pub mod prelude;
 mod signature;
+
+// sql output
+pub enum Output {
+    AffectedRows(usize),
+    RecordBatches(RecordBatches),
+    Stream(SendableRecordBatchStream),
+}