require "gandiva"
table = Arrow::Table.new(:field1 => Arrow::Int32Array.new([1, 2, 3, 4]),
:field2 => Arrow::Int32Array.new([11, 13, 15, 17]))
schema = table.schema
expression1 = schema.build_expression do |record|
record.field1 + record.field2
end
expression2 = schema.build_expression do |record, context|
context.if(record.field1 > record.field2)
.then(record.field1 / record.field2)
.else(record.field1)
end
projector = Gandiva::Projector.new(schema, [expression1, expression2])
table.each_record_batch do |record_batch|
outputs = projector.evaluate(record_batch)
puts outputs.collect(&:values)
end
C:\Users\Dominic E Sisneros\source\repos\ruby\try_arrow>ruby gandiva_test2.rb
Traceback (most recent call last):
2: from gandiva_test2.rb:1:in `<main>'
1: from c:/Ruby27-x64/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require'
c:/Ruby27-x64/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:92:in `require': cannot load such file -- gandiva (LoadError)
9: from gandiva_test2.rb:1:in `<main>'
8: from c:/Ruby27-x64/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:156:in `require'
7: from c:/Ruby27-x64/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:168:in `rescue in require'
6: from c:/Ruby27-x64/lib/ruby/2.7.0/rubygems/core_ext/kernel_require.rb:168:in `require'
5: from c:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/red-gandiva-0.16.0/lib/gandiva.rb:24:in `<top (required)>'
4: from c:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/red-gandiva-0.16.0/lib/gandiva.rb:28:in `<module:Gandiva>'
3: from c:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/red-gandiva-0.16.0/lib/gandiva/loader.rb:22:in `load'
2: from c:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/gobject-introspection-3.4.1/lib/gobject-introspection/loader.rb:25:in `load'
1: from c:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/gobject-introspection-3.4.1/lib/gobject-introspection/loader.rb:37:in `load'
c:/Ruby27-x64/lib/ruby/gems/2.7.0/gems/gobject-introspection-3.4.1/lib/gobject-introspection/loader.rb:37:in `require': Typelib file for namespace 'Gandiva' (any version) not found (GObjectIntrospection::RepositoryError::TypelibNotFound)
Bug
Major