Add datafusion-substrait crate (#4543)

* Initial commit * initial commit * failing test * table scan projection * closer * test passes, with some hacks * use DataFrame (#2) * update README * update dependency * code cleanup (#3) * Add support for Filter operator and BinaryOp expressions (#4) * GitHub action (#5) * Split code into producer and consumer modules (#6) * Support more functions and scalar types (#7) * Use substrait 0.1 and datafusion 8.0 (#8) * use substrait 0.1 * use datafusion 8.0 * update datafusion to 10.0 and substrait to 0.2 (#11) * Add basic join support (#12) * Added fetch support (#23) Added fetch to consumer Added limit to producer Added unit tests for limit Added roundtrip_fill_none() for testing when None input can be converted to 0 Update src/consumer.rs Co-authored-by: Andy Grove <[email protected]> Co-authored-by: Andy Grove <[email protected]> * Upgrade to DataFusion 13.0.0 (#25) * Add sort consumer and producer (#24) Add consumer Add producer and test Modified error string * Add serializer/deserializer (#26) * Add plan and function extension support (#27) * Add plan and function extension support * Removed unwraps * Implement GROUP BY (#28) * Add consumer, producer and tests for aggregate relation Change function extension registration from absolute to relative anchor (reference) Remove operator to/from reference * Fixed function registration bug * Add test * Addressed PR comments * Changed field reference from mask to direct reference (#29) * Changed field reference from masked reference to direct reference * Handle unsupported case (struct with child) * Handle SubqueryAlias (#30) Fixed aggregate function register bug * Add support for SELECT DISTINCT (#31) Add test case * Implement BETWEEN (#32) * Add case (#33) * Implement CASE WHEN * Add more case to test * Addressed comments * feat: support explicit catalog/schema names in ReadRel (#34) * feat: support explicit catalog/schema names in ReadRel Signed-off-by: Ruihang Xia <[email protected]> * fix: use re-exported expr crate Signed-off-by: Ruihang Xia <[email protected]> Signed-off-by: Ruihang Xia <[email protected]> * move files to subfolder * RAT * remove rust.yaml * revert .gitignore changes * tomlfmt * tomlfmt Signed-off-by: Ruihang Xia <[email protected]> Co-authored-by: Daniël Heres <[email protected]> Co-authored-by: JanKaul <[email protected]> Co-authored-by: nseekhao <[email protected]> Co-authored-by: Ruihang Xia <[email protected]>
apache · Jan 12, 2023 · 0d27fcb · 0d27fcb
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diff --git a/datafusion/substrait/Cargo.toml b/datafusion/substrait/Cargo.toml
@@ -0,0 +1,32 @@
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+[package]
+name = "datafusion-substrait"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+async-recursion = "1.0"
+datafusion = "13.0"
+prost = "0.9"
+prost-types = "0.9"
+substrait = "0.2"
+tokio = "1.17"
+
+[build-dependencies]
+prost-build = { version = "0.9" }
diff --git a/datafusion/substrait/README.md b/datafusion/substrait/README.md
@@ -0,0 +1,34 @@
+<!---
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+  Unless required by applicable law or agreed to in writing,
+  software distributed under the License is distributed on an
+  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+  KIND, either express or implied.  See the License for the
+  specific language governing permissions and limitations
+  under the License.
+-->
+
+# DataFusion + Substrait
+
+[Substrait](https://substrait.io/) provides a cross-language serialization format for relational algebra, based on
+protocol buffers.
+
+This repository provides a Substrait producer and consumer for DataFusion:
+
+- The producer converts a DataFusion logical plan into a Substrait protobuf.
+- The consumer converts a Substrait protobuf into a DataFusion logical plan.
+
+Potential uses of this crate:
+
+- Replace the current [DataFusion protobuf definition](https://github.com/apache/arrow-datafusion/blob/master/datafusion-proto/proto/datafusion.proto) used in Ballista for passing query plan fragments to executors
+- Make it easier to pass query plans over FFI boundaries, such as from Python to Rust
+- Allow Apache Calcite query plans to be executed in DataFusion