«ClickHouse is extremely fast at simple SELECTs without joins, much faster than Vertica».
+
+
+
ClickHouse vs. PrestoDB
+
Ömer Osman Koçak:
+ «When we evaluated ClickHouse the results were great compared to Prestodb. Even though the columnar storage optimizations for ORC and Clickhouse is quite similar, Clickhouse uses CPU and Memory resources more efficiently (Presto also uses vectorized execution but cannot take advantage of hardware level optimizations such as SIMD instruction sets because it's written in Java so that's fair) so we also wanted to add support for Clickhouse for our open-source analytics platform Rakam (https://github.com/rakam-io/rakam)»
+
+
+
ClickHouse vs. Spark
+
«Я потестировал Clickhouse, по скорости просто отлично = намного быстрее spark на одной машине (у меня получилось порядка 3x, но еще буду сравнивать). Кроме того compression получается лучше».
+
+
+
ClickHouse vs. Google BigQuery
+
«ClickHouse показывает сравнимую скорость на таком запросе за 30 дней и в 8 раз быстрее (!) на таком запросе. В планах есть протестировать и другие запросы, еще не добрались.
Скорость выполнения запросов стабильна. В Google BigQuery в период пиковых нагрузок, например в 4:00 p.m. PDT или в начале месяца, время выполнения запросов может заметно увеличиваться».
+
+
+
ClickHouse vs. Druid
+
«В этом году мы развернули сборку на основе Druid — Imply Analytics Platform, а также Tranquility, и уже приготовились запускать в продакшн… Но после выхода ClickHouse сразу отказались от Druid, хотя потратили два месяца на его изучение и внедрение».
+
+
+
+
+
+
diff --git a/doc/presentations/meetup4/pictures/column_oriented.gif b/doc/presentations/meetup4/pictures/column_oriented.gif
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diff --git a/doc/presentations/meetup4/pictures/greenplum.png b/doc/presentations/meetup4/pictures/greenplum.png
new file mode 100644
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Binary files /dev/null and b/doc/presentations/meetup4/pictures/greenplum.png differ
diff --git a/doc/presentations/meetup4/pictures/infinidb_cn.png b/doc/presentations/meetup4/pictures/infinidb_cn.png
new file mode 100644
index 00000000000..957c392a448
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diff --git a/doc/presentations/meetup4/pictures/kaspersky.png b/doc/presentations/meetup4/pictures/kaspersky.png
new file mode 100644
index 00000000000..f8aae1da9ee
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diff --git a/doc/presentations/meetup4/pictures/metrika2.png b/doc/presentations/meetup4/pictures/metrika2.png
new file mode 100644
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diff --git a/doc/presentations/meetup4/pictures/milovidov.jpg b/doc/presentations/meetup4/pictures/milovidov.jpg
new file mode 100644
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diff --git a/doc/presentations/meetup4/pictures/proller.jpg b/doc/presentations/meetup4/pictures/proller.jpg
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diff --git a/doc/presentations/meetup4/pictures/row_oriented.gif b/doc/presentations/meetup4/pictures/row_oriented.gif
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diff --git a/doc/presentations/meetup4/pictures/stanly.jpg b/doc/presentations/meetup4/pictures/stanly.jpg
new file mode 100644
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diff --git a/doc/presentations/meetup4/pictures/vludv.jpg b/doc/presentations/meetup4/pictures/vludv.jpg
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diff --git a/doc/presentations/meetup4/shower/shower.min.js b/doc/presentations/meetup4/shower/shower.min.js
new file mode 100644
index 00000000000..449843ac45d
--- /dev/null
+++ b/doc/presentations/meetup4/shower/shower.min.js
@@ -0,0 +1,8 @@
+/**
+ * Core for Shower HTML presentation engine
+ * shower-core v2.0.7, https://github.com/shower/core
+ * @copyright 2010–2016 Vadim Makeev, http://pepelsbey.net/
+ * @license MIT
+ */
+!function(a){var b,c={NOT_RESOLVED:"NOT_RESOLVED",IN_RESOLVING:"IN_RESOLVING",RESOLVED:"RESOLVED"},d=function(){var l={trackCircularDependencies:!0,allowMultipleDeclarations:!0},m={},n=!1,o=[],p=function(a,d,e){e||(e=d,d=[]);var f=m[a];f||(f=m[a]={name:a,decl:b}),f.decl={name:a,prev:f.decl,fn:e,state:c.NOT_RESOLVED,deps:d,dependents:[],exports:b}},q=function(b,c,d){"string"==typeof b&&(b=[b]),n||(n=!0,k(v)),o.push({deps:b,cb:function(b,f){f?(d||e)(f):c.apply(a,b)}})},r=function(a){var b=m[a];return b?c[b.decl.state]:"NOT_DEFINED"},s=function(a){return!!m[a]},t=function(a){for(var b in a)a.hasOwnProperty(b)&&(l[b]=a[b])},u=function(){var a,b={};for(var c in m)m.hasOwnProperty(c)&&(a=m[c],(b[a.decl.state]||(b[a.decl.state]=[])).push(c));return b},v=function(){n=!1,w()},w=function(){var a,b=o,c=0;for(o=[];a=b[c++];)x(null,a.deps,[],a.cb)},x=function(a,b,c,d){var e=b.length;e||d([]);for(var g,h,i=[],j=function(a,b){if(b)return void d(null,b);if(!--e){for(var c,f=[],g=0;c=i[g++];)f.push(c.exports);d(f)}},k=0,l=e;k ")+'"')},h=function(a){return Error('Declaration of module "'+a.name+'" has already been provided')},i=function(a){return Error('Multiple declarations of module "'+a.name+'" have been detected')},j=function(a,b){for(var c,d=0;c=b[d++];)if(a===c)return!0;return!1},k=function(){var b=[],c=function(a){return 1===b.push(a)},d=function(){var a=b,c=0,d=b.length;for(b=[];c=0&&!b.defaultPrevented();){var d=a[c];d&&(d.context?d.callback.call(d.context,b):d.callback(b)),c--}}}),a(e)}),shower.modules.define("Plugins",["Emitter","util.extend"],function(a,b,c){function d(a){this.events=new b({context:this}),this._showerGlobal=a,this._showerInstances=a.getInited(),this._plugins={},this._instances=[],a.events.on("init",this._onShowerInit,this)}c(d.prototype,{destroy:function(){this._showerGlobal.events.off("init",this._onShowerInit,this),this._plugins=null},add:function(a,b){if(this._plugins.hasOwnProperty(a))throw new Error("Plugin "+a+" already exist.");return this._requireAndAdd({name:a,options:b}),this},remove:function(a){if(!this._plugins.hasOwnProperty(a))throw new Error("Plugin "+a+" not found.");return delete this._plugins[a],this.events.emit("remove",{name:a}),this},get:function(a,b){var c,d=this._plugins[a];if(d&&b)for(var e=0,f=this._instances.length;e=0;e--)if(d[e].getId()===a){b=d[e],c=e;break}return{slide:b,index:c}},_onSlideActivate:function(a){window.location.hash=a.get("slide").getId(),this._setTitle()},_onContainerSlideModeChange:function(){this._setTitle(),this.save()},_isSlideMode:function(){return this._shower.container.isSlideMode()},_onPopstate:function(){var a,b=this._shower,c=window.location.hash.substr(1),d=b.player.getCurrentSlide(),e=b.player.getCurrentSlideIndex();this._isSlideMode()&&e===-1?b.player.go(0):e===-1&&""!==window.location.hash&&b.player.go(0),d&&c!==d.getId()&&(a=this._getSlideById(c),b.player.go(a.index))},_setTitle:function(){var a=document.title,b=this._isSlideMode(),c=this._shower.player.getCurrentSlide();if(b&&c){var d=c.getTitle();document.title=d?d+" — "+this._documentTitle:this._documentTitle}else this._documentTitle!==a&&(document.title=this._documentTitle)}}),a(e)}),shower.modules.define("shower.Player",["Emitter","util.bound","util.extend"],function(a,b,c,d){function e(a){this.events=new b({context:this,parent:a.events}),this._shower=a,this._showerListeners=null,this._playerListeners=null,this._currentSlideNumber=-1,this._currentSlide=null,this.init()}d(e.prototype,{init:function(){this._showerListeners=this._shower.events.group().on("slideadd",this._onSlideAdd,this).on("slideremove",this._onSlideRemove,this).on("slidemodeenter",this._onSlideModeEnter,this),this._playerListeners=this.events.group().on("prev",this._onPrev,this).on("next",this._onNext,this),document.addEventListener("keydown",c(this,"_onKeyDown"))},destroy:function(){this._showerListeners.offAll(),this._playerListeners.offAll(),document.removeEventListener("keydown",c(this,"_onKeyDown")),this._currentSlide=null,this._currentSlideNumber=null,this._shower=null},next:function(){return this.events.emit("next"),this},prev:function(){return this.events.emit("prev"),this},first:function(){return this.go(0),this},last:function(){return this.go(this._shower.getSlidesCount()-1),this},go:function(a){"number"!=typeof a&&(a=this._shower.getSlideIndex(a));var b=this._shower.getSlidesCount(),c=this._currentSlide;return a!=this._currentSlideNumber&&a=0&&(c&&c.isActive()&&c.deactivate(),c=this._shower.get(a),this._currentSlide=c,this._currentSlideNumber=a,c.isActive()||c.activate(),this.events.emit("activate",{index:a,slide:c})),this},getCurrentSlide:function(){return this._currentSlide},getCurrentSlideIndex:function(){return this._currentSlideNumber},_onPrev:function(){this._changeSlide(this._currentSlideNumber-1)},_onNext:function(){this._changeSlide(this._currentSlideNumber+1)},_changeSlide:function(a){this.go(a)},_onSlideAdd:function(a){var b=a.get("slide");b.events.on("activate",this._onSlideActivate,this)},_onSlideRemove:function(a){var b=a.get("slide");b.events.off("activate",this._onSlideActivate,this)},_onSlideActivate:function(a){var b=a.get("slide"),c=this._shower.getSlideIndex(b);this.go(c)},_onKeyDown:function(a){if(this._shower.isHotkeysEnabled()&&!/^(?:button|input|select|textarea)$/i.test(a.target.tagName))switch(this.events.emit("keydown",{event:a}),a.which){case 33:case 38:case 37:case 72:case 75:if(a.altKey||a.ctrlKey||a.metaKey)return;a.preventDefault(),this.prev();break;case 34:case 40:case 39:case 76:case 74:if(a.altKey||a.ctrlKey||a.metaKey)return;a.preventDefault(),this.next();break;case 36:a.preventDefault(),this.first();break;case 35:a.preventDefault(),this.last();break;case 32:this._shower.container.isSlideMode()&&(a.shiftKey?this.prev():this.next())}},_onSlideModeEnter:function(){this._currentSlide||this.go(0)}}),a(e)}),shower.modules.define("shower.slidesParser",["Slide"],function(a,b){function c(a,c){var d=a.querySelectorAll(c);return d=Array.prototype.slice.call(d),d.map(function(a,c){var d=new b(a);return a.id||(a.id=c+1),d})}a(c)}),shower.modules.define("Slide",["shower.defaultOptions","Emitter","Options","slide.Layout","slide.layoutFactory","util.Store","util.extend"],function(a,b,c,d,e,f,g,h){function i(a,b,e){this.events=new c,this.options=new d(b),this.layout=null,this.state=new g({visited:0,index:null},e),this._content=a,this._isVisited=this.state.get("visited")>0,this._isActive=!1,this.init()}h(i.prototype,{init:function(){this.layout="string"==typeof this._content?new f.createLayout({content:this._content}):new e(this._content,this.options),this.layout.setParent(this),this._setupListeners()},destroy:function(){this._clearListeners(),this._isActive=null,this.options=null,this.layout.destroy()},activate:function(){this._isActive=!0;var a=this.state.get("visited");return this.state.set("visited",++a),this.events.emit("activate",{slide:this}),this},deactivate:function(){return this._isActive=!1,this.events.emit("deactivate",{slide:this}),this},isActive:function(){return this._isActive},isVisited:function(){return this.state.get("visited")>0},getTitle:function(){return this.layout.getTitle()},setTitle:function(a){return this.layout.setTitle(a),this},getId:function(){return this.layout.getElement().id},getContent:function(){return this.layout.getContent()},_setupListeners:function(){this.layoutListeners=this.layout.events.group().on("click",this._onSlideClick,this)},_clearListeners:function(){this.layoutListeners.offAll()},_onSlideClick:function(){this.activate(),this.events.emit("click",{slide:this})}}),a(i)}),shower.modules.define("slide.Layout",["Options","shower.defaultOptions","Emitter","util.bound","util.extend"],function(a,b,c,d,e,f){function g(a,e){this.options=new b({title_element_selector:c.slide_title_element_selector,active_classname:c.slide_active_classname,visited_classname:c.slide_visited_classname},e),this.events=new d,this._element=a,this._parent=null,this._parentElement=null,this.init()}f(g.prototype,{init:function(){var a=this._element.parentNode;a?this._parentElement=a:this.setParentElement(a)},destroy:function(){this.setParent(null)},setParent:function(a){this._parent!=a&&(this._clearListeners(),this._parent=a,this._parent&&this._setupListeners(),this.events.emit("parentchange",{parent:a}))},getParent:function(){return this._parent},setParentElement:function(a){a!=this._parentElement&&(this._parentElement=a,a.appendChild(this._element),this.events.emit("parentelementchange",{parentElement:a}))},getParentElement:function(){return this._parentElement},getElement:function(){return this._element},setTitle:function(a){var b=this.options.get("title_element_selector"),c=this._element.querySelector(b);c?c.innerHTML=a:(c=document.createElement(b),c.innerHTML=a,this._element.insertBefore(c,this._element.firstChild))},getTitle:function(){var a=this.options.get("title_element_selector"),b=this._element.querySelector(a);return b?b.textContent:null},getData:function(a){var b=this._element;return b.dataset?b.dataset[a]:b.getAttribute("data-"+a)},getContent:function(){return this._element.innerHTML},_setupListeners:function(){this._slideListeners=this._parent.events.group().on("activate",this._onSlideActivate,this).on("deactivate",this._onSlideDeactivate,this),this._element.addEventListener("click",e(this,"_onSlideClick"),!1)},_clearListeners:function(){this._slideListeners&&this._slideListeners.offAll(),this._element.removeEventListener("click",e(this,"_onSlideClick"))},_onSlideActivate:function(){this._element.classList.add(this.options.get("active_classname"))},_onSlideDeactivate:function(){var a=this._element.classList;a.remove(this.options.get("active_classname")),a.add(this.options.get("visited_classname"))},_onSlideClick:function(){this.events.emit("click")}}),a(g)}),shower.modules.define("slide.layoutFactory",["slide.Layout","util.extend"],function(a,b,c){var d={};c(d,{createLayout:function(a){a=a||{};var e=d._createElement(c({content:"",contentType:"slide"},a));return new b(e)},_createElement:function(a){var b=document.createElement("section");return b.innerHTML=a.content,b.classList.add(a.contentType),b}}),a(d)}),shower.modules.define("util.bound",function(a){function b(a,b){return a["__bound_"+b]||(a["__bound_"+b]=a[b].bind(a))}a(b)}),shower.modules.define("util.extend",function(a){function b(a){if(!a)throw new Error("util.extend: Target not found");return"undefined"==typeof Object.assign?c.apply(null,arguments):Object.assign.apply(null,arguments)}function c(a){for(var b=1,c=arguments.length;b0&&(a.preventDefault(),this.prev())},_go:function(){for(var a=0,b=this._elements.length;awindow.innerWidth/2?c.player.next():c.player.prev()),d||f.activate())},_onTouchMove:function(a){this._shower.container.isSlideMode()&&a.preventDefault()},_getSlideByElement:function(a){for(var b=this._shower.getSlides(),c=null,d=0,e=b.length;d` of your presentation.
+
+## PDF
+
+Ribbon could be exported to PDF by printing it from the list mode in Chrome or Opera browsers. See [printing documentation](https://github.com/shower/shower/blob/master/docs/printing-en.md) for more options.
+
+## Development
+
+If you want to adjust theme for your needs:
+
+1. Fork this repository and clone it to your local machine.
+2. Install dependencies: `npm install`.
+3. Start a local server with watcher: `npm run dev` or just `gulp` if you have it installed globally.
+4. Edit your files and see changes in the opened browser.
+
+To take part in Ribbon development please read [contributing guidelines](CONTRIBUTING.md) first and [file an issue](https://github.com/shower/shower/issues/new) before sending any pull request.
+
+---
+Licensed under [MIT License](LICENSE.md).
diff --git a/doc/presentations/meetup4/shower/themes/ribbon/index.html b/doc/presentations/meetup4/shower/themes/ribbon/index.html
new file mode 100644
index 00000000000..02ad835e8a8
--- /dev/null
+++ b/doc/presentations/meetup4/shower/themes/ribbon/index.html
@@ -0,0 +1,304 @@
+
+
+
+ Ribbon theme for Shower
+
+
+
+
+
+
+
+
Echo Park 8-bit sustainable umami deep v Kickstarter. DIY cliche typewriter brunch, Odd Future sriracha pickled aesthetic. Farm-to-table bespoke fingerstache, kale chips umami brunch letterpress.
+
Whatever authentic disrupt, you probably haven't heard of them direct trade mlkshk Etsy. Gluten-free roof party plaid four loko quinoa.
+
Echo Park 8-bit sustainable umami deep v Kickstarter.
+
+
+
Inline Elements
+
Retro meh brunch aesthetic Cosby sweater Shoreditch. Banksy Tumblr sriracha, flexitarian pug chia master cleanse vinyl wayfarers fanny pack bespoke Helvetica roof party. Messenger bag retro cred Portland next level. Yr stumptown Schlitz Carles deep v small batch. Hella sustainable messenger bag, leggings skateboard literally1 bicycle rights H20 mumblecore banh mi DIY VHS. Semiotics four loko street art asymmetrical. Asymmetrical <paleo> you probably haven’t heard of.
+
+
+
+
Quotes
+
+
Flannel bicycle rights locavore selfies skateboard. Authentic fanny pack paleo four loko bespoke. Artisan tattooed chia XOXO ennui, lomo disrupt 8-bit art party Tumblr scenester.
+
+
+
+
Post-ironic fashion axe flexitarian, Tonx narwhal messenger bag Tumblr. Portland gentrify deep v kale chips literally.
Messenger bag retro cred Portland next level. Yr stumptown Schlitz Carles deep v small batch. Hella sustainable messenger bag.
+
Leggings skateboard literally1 bicycle rights H20 mumblecore banh mi DIY VHS. Semiotics four loko street art asymmetrical. Asymmetrical paleo you probably haven’t heard of.
+
+
+
+
Latin and Cyrillic List Bullets
+
+
Occupy locavore blog, mustache you probably haven't heard of them
Cray pug paleo retro, Echo Park narwhal Wes Anderson
+
Disrupt Williamsburg fixie, shabby chic bicycle rights hashtag kogi
+
+
+
+
Two Columns
+
Echo Park 8-bit sustainable umami deep v Kickstarter. DIY cliche typewriter brunch, Odd Future sriracha pickled aesthetic. Farm-to-table bespoke fingerstache, kale chips umami brunch American Apparel letterpress. Whatever authentic disrupt, you probably haven't heard of them direct trade mlkshk Etsy. Gluten-free roof party plaid American Apparel four loko quinoa. Echo Park 8-bit sustainable.
+
+
+
Three Columns
+
Echo Park 8-bit sustainable umami deep v Kickstarter. DIY cliche typewriter brunch, Odd Future sriracha pickled aesthetic. Farm-to-table bespoke fingerstache, kale chips umami brunch American Apparel letterpress. Whatever authentic disrupt, you probably haven't heard of them direct trade mlkshk Etsy. Gluten-free roof party plaid American Apparel four loko quinoa. Echo Park 8-bit sustainable.
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
+