Adding upstream version 18.2.2.upstream/18.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

20 files changed, 787 insertions, 0 deletions

diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva.rb b/src/arrow/ruby/red-gandiva/lib/gandiva.rb
new file mode 100644
index 000000000..6a47a3210
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva.rb
@@ -0,0 +1,29 @@
+# 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.
+
+require "arrow"
+
+require "gandiva/version"
+
+require "gandiva/loader"
+
+module Gandiva
+  class Error < StandardError
+  end
+
+  Loader.load
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/arrow-schema.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/arrow-schema.rb
new file mode 100644
index 000000000..1656b4736
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/arrow-schema.rb
@@ -0,0 +1,25 @@
+# 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.
+
+module Arrow
+  class Schema
+    def build_expression(&block)
+      builder = Gandiva::ExpressionBuilder.new(self)
+      builder.build(&block)
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder.rb
new file mode 100644
index 000000000..405a1f68e
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder.rb
@@ -0,0 +1,45 @@
+# 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.
+
+module Gandiva
+  class ExpressionBuilder
+    def initialize(schema)
+      @schema = schema
+    end
+
+    def build
+      builder = yield(Record.new(@schema), Context.new)
+      node = builder.build
+      Expression.new(node,
+                     Arrow::Field.new("result", node.return_type))
+    end
+  end
+end
+
+require "gandiva/expression-builder/add"
+require "gandiva/expression-builder/context"
+require "gandiva/expression-builder/divide"
+require "gandiva/expression-builder/elsif"
+require "gandiva/expression-builder/equal"
+require "gandiva/expression-builder/field"
+require "gandiva/expression-builder/greater-than"
+require "gandiva/expression-builder/if"
+require "gandiva/expression-builder/literal"
+require "gandiva/expression-builder/less-than"
+require "gandiva/expression-builder/multiply"
+require "gandiva/expression-builder/record"
+require "gandiva/expression-builder/subtract"
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/add.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/add.rb
new file mode 100644
index 000000000..210d47d52
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/add.rb
@@ -0,0 +1,40 @@
+# 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.
+
+require "gandiva/expression-builder/binary-operation"
+
+module Gandiva
+  class ExpressionBuilder
+    class Add < BinaryOperation
+      def initialize(left, right)
+        super("add", left, right)
+      end
+
+      private
+      def return_type(left_node, right_node)
+        # TODO: More clever implementation. e.g. (int64, float) -> float
+        left_return_type = left_node.return_type
+        right_return_type = right_node.return_type
+        if left_return_type.bit_width > right_return_type.bit_width
+          left_return_type
+        else
+          right_return_type
+        end
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/binary-operation.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/binary-operation.rb
new file mode 100644
index 000000000..922bdc4f3
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/binary-operation.rb
@@ -0,0 +1,38 @@
+# 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.
+
+require "gandiva/expression-builder/value"
+
+module Gandiva
+  class ExpressionBuilder
+    class BinaryOperation < Value
+      def initialize(operator, left, right)
+        @operator = operator
+        @left = left
+        @right = right
+      end
+
+      def build
+        left_node = @left.build
+        right_node = @right.build
+        FunctionNode.new(@operator,
+                         [left_node, right_node],
+                         return_type(left_node, right_node))
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/context.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/context.rb
new file mode 100644
index 000000000..25ceee5d0
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/context.rb
@@ -0,0 +1,26 @@
+# 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.
+
+module Gandiva
+  class ExpressionBuilder
+    class Context
+      def if(condition)
+        If.new(condition)
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/divide.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/divide.rb
new file mode 100644
index 000000000..9888dc2a0
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/divide.rb
@@ -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.
+
+require "gandiva/expression-builder/binary-operation"
+
+module Gandiva
+  class ExpressionBuilder
+    class Divide < BinaryOperation
+      def initialize(left, right)
+        super("divide", left, right)
+      end
+
+      private
+      def return_type(left_node, right_node)
+        # TODO: Use float if left or right is float
+        left_node.return_type
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/elsif.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/elsif.rb
new file mode 100644
index 000000000..f5fc086d9
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/elsif.rb
@@ -0,0 +1,36 @@
+# 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.
+
+require "gandiva/expression-builder/if"
+
+module Gandiva
+  class ExpressionBuilder
+    class Elsif < If
+      def initialize(parent, condition)
+        @parent = parent
+        super(condition)
+      end
+
+      def build
+        elsif_node = super
+        build_if_node(@parent.condition_node,
+                      @parent.then_node,
+                      elsif_node)
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/equal.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/equal.rb
new file mode 100644
index 000000000..3e3ec2580
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/equal.rb
@@ -0,0 +1,33 @@
+# 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.
+
+require "gandiva/expression-builder/binary-operation"
+
+module Gandiva
+  class ExpressionBuilder
+    class Equal < BinaryOperation
+      def initialize(left, right)
+        super("equal", left, right)
+      end
+
+      private
+      def return_type(left_node, right_node)
+        Arrow::BooleanDataType.new
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/field.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/field.rb
new file mode 100644
index 000000000..916333e23
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/field.rb
@@ -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.
+
+require "gandiva/expression-builder/value"
+
+module Gandiva
+  class ExpressionBuilder
+    class Field < Value
+      def initialize(field)
+        @field = field
+      end
+
+      def build
+        FieldNode.new(@field)
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/greater-than.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/greater-than.rb
new file mode 100644
index 000000000..65d146f9e
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/greater-than.rb
@@ -0,0 +1,33 @@
+# 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.
+
+require "gandiva/expression-builder/binary-operation"
+
+module Gandiva
+  class ExpressionBuilder
+    class GreaterThan < BinaryOperation
+      def initialize(left, right)
+        super("greater_than", left, right)
+      end
+
+      private
+      def return_type(left_node, right_node)
+        Arrow::BooleanDataType.new
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/if.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/if.rb
new file mode 100644
index 000000000..c0a00c3a8
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/if.rb
@@ -0,0 +1,75 @@
+# 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.
+
+module Gandiva
+  class ExpressionBuilder
+    class If
+      def initialize(condition)
+        @condition = condition
+        @then = nil
+        @else = nil
+      end
+
+      def then(clause)
+        @then = clause
+        self
+      end
+
+      def else(clause)
+        @else = clause
+        self
+      end
+
+      def elsif(condition)
+        Elsif.new(self, condition)
+      end
+
+      def build
+        build_if_node(condition_node,
+                      then_node,
+                      else_node)
+      end
+
+      protected
+      def condition_node
+        @condition.build
+      end
+
+      def then_node
+        @then&.build
+      end
+
+      def else_node
+        @else&.build
+      end
+
+      private
+      def build_if_node(condition_node, then_node, else_node)
+        if then_node and else_node
+          # TODO: Validate then_node.return_type == else_node.return_type
+          return_type = then_node.return_type
+        else
+          return_type = (then_node || else_node).return_type
+        end
+        IfNode.new(condition_node,
+                   then_node,
+                   else_node,
+                   return_type)
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/less-than.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/less-than.rb
new file mode 100644
index 000000000..93d19abd1
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/less-than.rb
@@ -0,0 +1,33 @@
+# 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.
+
+require "gandiva/expression-builder/binary-operation"
+
+module Gandiva
+  class ExpressionBuilder
+    class LessThan < BinaryOperation
+      def initialize(left, right)
+        super("less_than", left, right)
+      end
+
+      private
+      def return_type(left_node, right_node)
+        Arrow::BooleanDataType.new
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/literal.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/literal.rb
new file mode 100644
index 000000000..da2de8273
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/literal.rb
@@ -0,0 +1,65 @@
+# 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.
+
+module Gandiva
+  class ExpressionBuilder
+    class Literal
+      class << self
+        def resolve(value)
+          case value
+          when true, false
+            new(BooleanLiteralNode, value)
+          when Integer
+            if value < -(2 ** 31)
+              new(Int64LiteralNode, value)
+            elsif value < -(2 ** 15)
+              new(Int32LiteralNode, value)
+            elsif value < -(2 ** 7)
+              new(Int16LiteralNode, value)
+            elsif value < 0
+              new(Int8LiteralNode, value)
+            elsif value < (2 ** 8 - 1)
+              new(UInt8LiteralNode, value)
+            elsif value < (2 ** 16 - 1)
+              new(UInt16LiteralNode, value)
+            elsif value < (2 ** 32 - 1)
+              new(UInt32LiteralNode, value)
+            else
+              new(UInt64LiteralNode, value)
+            end
+          when Float
+            new(DoubleLiteralNode, value)
+          when String
+            new(StringLiteralNode, value)
+          else
+            nil
+          end
+        end
+      end
+
+      attr_reader :value
+      def initialize(node_class, value)
+        @node_class = node_class
+        @value = value
+      end
+
+      def build
+        @node_class.new(value)
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/multiply.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/multiply.rb
new file mode 100644
index 000000000..55c57a55d
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/multiply.rb
@@ -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.
+
+require "gandiva/expression-builder/binary-operation"
+
+module Gandiva
+  class ExpressionBuilder
+    class Multiply < BinaryOperation
+      def initialize(left, right)
+        super("multiply", left, right)
+      end
+
+      private
+      def return_type(left_node, right_node)
+        # TODO: Use larger type
+        right_node.return_type
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/record.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/record.rb
new file mode 100644
index 000000000..a8cd124fc
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/record.rb
@@ -0,0 +1,45 @@
+# 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.
+
+module Gandiva
+  class ExpressionBuilder
+    class Record
+      def initialize(schema)
+        @schema = schema
+      end
+
+      def respond_to_missing?(name, include_private)
+        return true if @schema[name]
+        super
+      end
+
+      def method_missing(name, *args)
+        return super unless args.empty?
+        self[name] || super
+      end
+
+      def [](name)
+        field = @schema[name]
+        if field
+          Field.new(field)
+        else
+          nil
+        end
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/subtract.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/subtract.rb
new file mode 100644
index 000000000..cc3810b72
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/subtract.rb
@@ -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.
+
+require "gandiva/expression-builder/binary-operation"
+
+module Gandiva
+  class ExpressionBuilder
+    class Subtract < BinaryOperation
+      def initialize(left, right)
+        super("subtract", left, right)
+      end
+
+      private
+      def return_type(left_node, right_node)
+        # TODO: Use larger type
+        right_node.return_type
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/value.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/value.rb
new file mode 100644
index 000000000..366e08871
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/expression-builder/value.rb
@@ -0,0 +1,55 @@
+# 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.
+
+module Gandiva
+  class ExpressionBuilder
+    class Value
+      def +(right)
+        Add.new(self, resolve(right))
+      end
+
+      def -(right)
+        Subtract.new(self, resolve(right))
+      end
+
+      def *(right)
+        Multiply.new(self, resolve(right))
+      end
+
+      def /(right)
+        Divide.new(self, resolve(right))
+      end
+
+      def >(right)
+        GreaterThan.new(self, resolve(right))
+      end
+
+      def <(right)
+        LessThan.new(self, resolve(right))
+      end
+
+      def ==(right)
+        Equal.new(self, resolve(right))
+      end
+
+      private
+      def resolve(value)
+        Literal.resolve(value) or value
+      end
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/loader.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/loader.rb
new file mode 100644
index 000000000..2d8c8a713
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/loader.rb
@@ -0,0 +1,49 @@
+# 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.
+
+module Gandiva
+  class Loader < GObjectIntrospection::Loader
+    class << self
+      def load
+        super("Gandiva", Gandiva)
+      end
+    end
+
+    private
+    def load_method_info(info, klass, method_name)
+      case klass.name
+      when "Gandiva::BooleanLiteralNode"
+        case method_name
+        when "value?"
+          method_name = "value"
+        end
+        super(info, klass, method_name)
+      else
+        super
+      end
+    end
+
+    def post_load(repository, namespace)
+      require_libraries
+    end
+
+    def require_libraries
+      require "gandiva/arrow-schema"
+      require "gandiva/expression-builder"
+    end
+  end
+end
diff --git a/src/arrow/ruby/red-gandiva/lib/gandiva/version.rb b/src/arrow/ruby/red-gandiva/lib/gandiva/version.rb
new file mode 100644
index 000000000..c78f165ec
--- /dev/null
+++ b/src/arrow/ruby/red-gandiva/lib/gandiva/version.rb
@@ -0,0 +1,26 @@
+# 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.
+
+module Gandiva
+  VERSION = "6.0.1"
+
+  module Version
+    numbers, TAG = VERSION.split("-")
+    MAJOR, MINOR, MICRO = numbers.split(".").collect(&:to_i)
+    STRING = VERSION
+  end
+end