docs: update license and add license header

Signed-off-by: Alex Chi <[email protected]>

LICENSE

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2023 CMU Database Group
+Copyright (c) 2023-2024 CMU Database Group
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

datafusion-optd-cli/src/command.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 // 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

datafusion-optd-cli/src/exec.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 // 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

datafusion-optd-cli/src/lib.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 // 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

datafusion-optd-cli/src/main.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 // 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

optd-adaptive-demo/src/bin/optd-adaptive-three-join.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::sync::Arc;
 
 use console::Style;

optd-adaptive-demo/src/bin/optd-adaptive-tpch-q8.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::sync::Arc;
 use std::time::Duration;
 

optd-core/src/cascades.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 //! The core cascades optimizer implementation.
 
 mod memo;

optd-core/src/cascades/memo.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::any::Any;
 use std::collections::hash_map::Entry;
 use std::collections::{HashMap, HashSet};

optd-core/src/cascades/optimizer.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::collections::{BTreeSet, HashMap, HashSet, VecDeque};
 use std::fmt::Display;
 use std::sync::Arc;

optd-core/src/cascades/tasks.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use anyhow::Result;
 
 use super::{CascadesOptimizer, Memo};

optd-core/src/cascades/tasks/apply_rule.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::sync::Arc;
 
 use anyhow::Result;

optd-core/src/cascades/tasks/explore_group.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use anyhow::Result;
 use tracing::trace;
 

optd-core/src/cascades/tasks/optimize_expression.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use anyhow::Result;
 use tracing::trace;
 

optd-core/src/cascades/tasks/optimize_group.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use anyhow::Result;
 use tracing::trace;
 

optd-core/src/cascades/tasks/optimize_inputs.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use anyhow::Result;
 use itertools::Itertools;
 use tracing::trace;

optd-core/src/cost.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use crate::cascades::{CascadesOptimizer, Memo, RelNodeContext};
 use crate::nodes::{ArcPredNode, NodeType};
 

optd-core/src/heuristics.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 mod optimizer;
 
 pub use optimizer::{ApplyOrder, HeuristicsOptimizer};

optd-core/src/heuristics/optimizer.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::any::Any;
 use std::collections::HashMap;
 use std::sync::Arc;

optd-core/src/lib.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 #![allow(clippy::new_without_default)]
 
 pub mod cascades;

optd-core/src/nodes.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 //! The RelNode is the basic data structure of the optimizer. It is dynamically typed and is
 //! the internal representation of the plan nodes.
 

optd-core/src/optimizer.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use anyhow::Result;
 
 use crate::nodes::{ArcPlanNode, NodeType, PlanNodeOrGroup};

optd-core/src/property.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::any::Any;
 use std::fmt::{Debug, Display};
 

optd-core/src/rules.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 mod ir;
 
 use std::fmt::{Display, Formatter};

optd-core/src/rules/ir.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use crate::nodes::NodeType;
 
 pub enum RuleMatcher<T: NodeType> {

optd-datafusion-bridge/src/from_optd.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::collections::HashMap;
 use std::sync::Arc;
 

optd-datafusion-bridge/src/into_optd.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use anyhow::{bail, Result};
 use datafusion::common::DFSchema;
 use datafusion::logical_expr::{self, logical_plan, LogicalPlan, Operator};

optd-datafusion-bridge/src/lib.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 #![allow(clippy::new_without_default)]
 
 mod from_optd;

optd-datafusion-bridge/src/physical_collector.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::sync::Arc;
 use std::task::{Context, Poll};
 

optd-datafusion-repr-adv-cost/src/adv_stats.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 mod agg;
 mod filter;
 mod join;

optd-datafusion-repr-adv-cost/src/adv_stats/agg.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use optd_datafusion_repr::plan_nodes::{ArcDfPredNode, DfReprPredNode, ListPred};
 use optd_datafusion_repr::properties::column_ref::{
     BaseTableColumnRef, ColumnRef, GroupColumnRefs,

optd-datafusion-repr-adv-cost/src/adv_stats/filter.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::ops::Bound;
 
 use optd_datafusion_repr::plan_nodes::{

optd-datafusion-repr-adv-cost/src/adv_stats/filter/in_list.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use optd_datafusion_repr::plan_nodes::{
     ColumnRefPred, ConstantPred, DfPredType, DfReprPredNode, InListPred,
 };

optd-datafusion-repr-adv-cost/src/adv_stats/filter/like.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use datafusion::arrow::array::StringArray;
 use datafusion::arrow::compute::like;
 use optd_datafusion_repr::plan_nodes::{

optd-datafusion-repr-adv-cost/src/adv_stats/join.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::collections::HashSet;
 
 use itertools::Itertools;

optd-datafusion-repr-adv-cost/src/adv_stats/limit.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use optd_datafusion_repr::plan_nodes::{ArcDfPredNode, ConstantPred, DfReprPredNode};
 use serde::de::DeserializeOwned;
 use serde::Serialize;

optd-datafusion-repr-adv-cost/src/adv_stats/stats.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::collections::HashMap;
 use std::sync::Arc;
 

optd-datafusion-repr-adv-cost/src/lib.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::sync::{Arc, Mutex};
 
 use adv_stats::stats::{

optd-datafusion-repr/src/cost.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 pub mod adaptive_cost;
 pub mod base_cost;
 

optd-datafusion-repr/src/cost/adaptive_cost.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::collections::HashMap;
 use std::sync::{Arc, Mutex};
 

optd-datafusion-repr/src/cost/base_cost.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use std::collections::HashMap;
 
 use itertools::Itertools;

optd-datafusion-repr/src/explain.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 use optd_core::nodes::{PlanNodeMeta, PlanNodeMetaMap};
 use pretty_xmlish::Pretty;
 

optd-datafusion-repr/src/lib.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 #![allow(clippy::new_without_default)]
 
 use std::collections::HashMap;

optd-datafusion-repr/src/memo_ext.rs

@@ -1,3 +1,8 @@
+// Copyright (c) 2023-2024 CMU Database Group
+//
+// Use of this source code is governed by an MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
 //! Memo table extensions
 
 use std::collections::{BTreeSet, HashMap};