Why so serious?

 Cloud friendly database
 Based on Apache Lucene (Java)
 Linux only

 Document oriented
 Schema free – why bother?
 REST API
 JSON

_________
{
"book": {
"name": "PHP a XML",
"ean": 9788024711164,
"producer": "Grada",
"price": 249,
"author": {
"name": "Jiří",
"lastname": "Kosek"
},
"categories": [
"XML",
"PHP"
]
}
}

$ curl –XPUT localhost:9200/amazon/book/978802471164 –d‘
{
"book": {
"name": "PHP a XML",
"ean": 9788024711164,
"producer": "Grada",
"price": 249,
"author": {
"name": "Jiří",
"lastname": "Kosek"
},
"categories": [
"XML",
"PHP"
]
}
}‘

$ curl –XPUT localhost:9200/amazon/book/978802471164 –d‘
{
"book": {
"name": "PHP a XML",
"ean": 9788024711164,
"producer": "Grada",
"price": 249,
"author": {
"name": "Jiří",
"lastname": "Kosek"
},
"categories": [
"XML",
"PHP"
]
}
}‘

$ curl –XPUT localhost:9200/amazon/book/978802471164 –d‘
{
"book": {
"name": "PHP a XML",
"ean": 9788024711164,
"producer": "Grada",
"price": 249,
"author": {
"name": "Jiří",
"lastname": "Kosek"
},
"categories": [
"XML",
"PHP"
]
}
}‘

$ curl –XPUT localhost:9200/amazon/book/978802471164 –d‘
{
"book": {
"name": "PHP a XML",
"ean": 9788024711164,
"producer": "Grada",
"price": 249,
"author": {
"name": "Jiří",
"lastname": "Kosek"
},
"categories": [
"XML",
"PHP"
]
}
}‘

$ curl –XGET
localhost:9200/amazon/book/9788024711
164

$ curl –XGET
localhost:9200/amazon/book/_search?q=
category:XML

$ curl –XGET
localhost:9200/amazon/book/_search?q=
category:XML
&from=10&size=10

$ curl –XGET
localhost:9200/amazon/book,page/
_search?q=category:XML

$ curl –XGET
localhost:9200/amazon/_search?q=
category:XML

{
"took": 3,
"timed_out": false,
"_shards": {
"total": 1,
"successful": 1,
"failed": 0
},
"hits": {
"total": 119,
"max_score": 0.23119758,
"hits": [
{
"_index": "levneucebnice_fulltext4",
"_type": "products",
"_id": "64135",
"_score": 0.23119758,
"_source": {
"id": "64135",
"name": "Anatomie 1 - Třetí, upravené a doplněné
vydání",

 Specific searching
 Multiple conditions

{
"match" : {
"book.name" : "PHP a XML"
}
}
WHERE name = "PHP a XML"

{
"ids" : {
"type" : "book",
"values" : [
9788024711164,
9788024727257
]
}
}
WHERE id IN(...)

{
"prefix" : { "producer" : "gra" }
}
WHERE producer LIKE "gra%"

{
"range":
"price": {
"from": 200,
"to": 300
}
}
}
WHERE price BETWEEN 200 AND 300

+ = single character
* = mulitple characters
{
"wildcard" : { "book.name" :
"P+P *" }
}

{
"span_first" : {
"match" : {
"span_term" : { "name" : "PHP" }
},
"end" : 1
}
}

 Combining conditions
 No default order
{
"bool" : {
"must" : {
"term" : { "producer" : "grada" }
},
"must_not" : {
"range" : {
"price" : { "from" : 100, "to" : 200 }
}
},
"should" : [
{
"term" : { "category" : "PHP" }
},
{
"term" : { "category" : "XML" }
}
]
}
}

{
"query": {
"bool": {
"should": [
{
"ids": {
"values": [
"64135"
],
"boost": 1000000
}
},
{
"ids": {
"values": [
"60558"
],
"boost": 999000
}
},

 Sometimes too easy
 Many ways to hit the target
 Sometimes too complicated
 Sometimes unpredicted behaviour
 Difficult debugging