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/*
 * Symisc Vedis: A Highly Efficient Embeddable Data Store Engine.
 * Copyright (C) 2013, Symisc Systems http://vedis.symisc.net/
 * Version 1.2.6
 * For information on licensing, redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES
 * please contact Symisc Systems via:
 *       [email protected]
 *       [email protected]
 *       [email protected]
 * or visit:

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exports.sortdeck = ( a ) => {
  var rows = Math.floor(a.length / 4) + 1, ret = []
  while (a.length) row(a)
  return ret
  function row (n) {
    var r = rows, rs = []
    while ( r-- )
      if (n.length)
        rs.push(n.pop());
    ret.push(rs)

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JOIN

var store = require('store/client')(8001, '127.0.0.1');
var query = store.query;
var join = store.join;

var a = query('applications**'); // all keys in sublevel "applications" and any of its sublevels
var b = query('vendors*'); // all keys in "vendors"

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git reset --soft HEAD^
git checkout branch
git commit

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intro

we've had great success building modular database stuff on top of leveldb with node, but as I have learnt more about databases it's become apparent to me that the idea of a modular database would be better implemented at a slightly lower level.

Level db provides a sorted key:value store, which, because of the sorted property, many things can be implemented on top of. For example, for replication, or for consistent materialized views, we often need a write ahead log. This can easily be implemented via a batch write to level, and writing the log into a section of the leveldb key space which is treated as append only.

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/fcntl.h>

#include "libmill.h"

//#include "list.h"

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# get system block size in bytes (RAM and disk)
sudo fdisk -l

# Disk /dev/ram1: 64 MiB, 67108864 bytes, 131072 sectors
# Units: sectors of 1 * 512 = 512 bytes
# Sector size (logical/physical): 512 bytes / 4096 bytes
# I/O size (minimum/optimal): 4096 bytes / 4096 bytes

# Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 sectors
# Units: sectors of 1 * 512 = 512 bytes

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#  Copyright (c) 2015 Bent Cardan

#  Permission is hereby granted, free of charge, to any person obtaining a copy
#  of this software and associated documentation files (the "Software"),
#  to deal in the Software without restriction, including without limitation
#  the rights to use, copy, modify, merge, publish, distribute, sublicense,
#  and/or sell copies of the Software, and to permit persons to whom
#  the Software is furnished to do so, subject to the following conditions:

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# Your init script
#
# Atom will evaluate this file each time a new window is opened. It is run
# after packages are loaded/activated and after the previous editor state
# has been restored.
#
# An example hack to log to the console when each text editor is saved.
#
# atom.workspace.observeTextEditors (editor) ->
#   editor.onDidSave ->

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{
  ActivityIndicatorIOS: {
    [Function]
    displayName: 'ActivityIndicatorIOS',
      propTypes: {
        animating: {
          [Function: checkType] isRequired: [Function: checkType]
        },
        color: {
          [Function: checkType] isRequired: [Function: checkType]