https://github.com/colinmarc/impala-ruby

an impala client for ruby
https://github.com/colinmarc/impala-ruby

Last synced: 24 days ago
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an impala client for ruby

• Host: GitHub
• URL: https://github.com/colinmarc/impala-ruby
• Owner: colinmarc
• License: mit
• Created: 2013-01-24T02:31:53.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2017-01-25T10:29:36.000Z (almost 8 years ago)
• Last Synced: 2024-10-05T20:47:33.182Z (about 1 month ago)
• Language: Thrift
• Size: 198 KB
• Stars: 34
• Watchers: 5
• Forks: 22
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# impala-ruby

[![build](https://travis-ci.org/colinmarc/impala-ruby.svg?branch=master)](https://travis-ci.org/colinmarc/impala-ruby)   [![rubygems](https://badge.fury.io/rb/impala.svg)](http://rubygems.org/gems/impala)

This is a ruby client for [Cloudera Impala][1]. You use it like this:

```ruby

require 'impala'

Impala.connect('host', 21000) do |conn|

  conn.query('SELECT zip, income FROM zipcode_incomes LIMIT 5')

end

# => [{:zip=>'02446', :income=>89597}, ...]

```

You can also use cursors to avoid loading the entire result set into memory:

```ruby

conn = Impala.connect('host', 21000)

cursor = conn.execute('SELECT zip, income FROM zipcode_incomes ORDER BY income DESC')

one_row = cursor.fetch_row

cursor.each do |row|

  # etc

end

conn.close

```

[1]: https://ccp.cloudera.com/display/IMPALA10BETADOC/Introducing+Cloudera+Impala