https://github.com/puppetpies/crystal-monetdb-libmapi

Crystal bindings for MonetDB
https://github.com/puppetpies/crystal-monetdb-libmapi

crystal-bindings monetdb monetdb-client

Last synced: about 1 month ago
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Crystal bindings for MonetDB

• Host: GitHub
• URL: https://github.com/puppetpies/crystal-monetdb-libmapi
• Owner: puppetpies
• License: mit
• Created: 2016-04-26T14:06:35.000Z (over 8 years ago)
• Default Branch: master
• Last Pushed: 2017-11-04T15:00:13.000Z (about 7 years ago)
• Last Synced: 2024-08-03T17:12:38.463Z (4 months ago)
• Topics: crystal-bindings, monetdb, monetdb-client
• Language: Crystal
• Homepage:
• Size: 5.99 MB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: MIT-LICENSE

Awesome Lists containing this project

• awesome-crystal - crystal-monetdb-libmapi - Bindings for MonetDB (Database Drivers/Clients)

README

        
# crystal-monetdb-libmapi

Crystal binding for the MonetDB MAPI client interface

Tested on

Crystal 0.22

Work around added for Crystal 0.23 on CentOS see https://github.com/crystal-lang/crystal/issues/4719

You will need the MonetDB client package installed for this to work and also an instance of MServer5 running

We can now perform a query that emits JSON useful for SELECT statements

For more details look at monetdb.org

Shards

Add this to your shard.yml and run shards install or crystal dep

```

  crystal-monetdb-libmapi:

    github: puppetpies/crystal-monetdb-libmapi

    version: ">= 0.1.1"

```

Examples schemas provided under examples/

```crystal

# Example code from shard crystal-monetdb-examples

require "crystal-monetdb-libmapi"

require "crystal-monetdb-libmapi/monetdb_data"

require "colorize"

class ConnectionError < Exception; end

class QueryError < Exception; end

class InternalError < Exception; end

class TimeoutError < Exception; end

host = "127.0.0.1"

port = 50000

username = "monetdb"

password = "monetdb"

db = "threatmonitor"

mero = MonetDB::ClientJSON.new

mero.host = host

mero.port = port

mero.username = username

mero.password = password

mero.db = db

myschema = "\"threatmonitor\""

query = "SELECT * FROM #{myschema}.fruits;"

mero.connect

# Alternative connect overload method to allow easy connect

# conn = MonetDB::Client.new

# conn.connect("localhost", "username", "password", "testschema")

result_json = mero.query_json(query)

result = mero.json_to_hash(result_json)

puts "Hash Created:".colorize(:red)

p result

puts "Display specific fields".colorize(:red)

result.each {|k,v|

  puts "Hash Key: #{k} Name: #{v["name"]} Price: #{v["price"]}"

}

```

NOTE: I recently added a workaround for compiling under Centos 7 / RHEL

We also provide an easyconnect script which allows you to provide all the host,

login parameters as seen above.

There are a few benchmark tools ( Feel free to add more )

```

  insperf - Insert performance included my stopwatch

  insperf_fiber

  randomize - Random columns / table width and data

```

  I do hope with this project people get involved feel free to fork the project

  as always, raise issues where needed i just want everyone to have a good time !

Have fun!

Brian Hood