Adding queries

Author: ycombinator

queries.md

@@ -0,0 +1,51 @@
+# Queries
+
+## Count all records
+
+### SQL
+
+    SELECT COUNT(*) FROM emails;
+
+### Elasticsearch
+
+    curl 'http://localhost:9200/enron/_count?pretty'
+
+
+## Search for text in a single field
+
+### SQL
+
+    SELECT COUNT(*) FROM emails WHERE MATCH(subject) AGAINST('monetary');
+
+### Elasticsearch
+
+    curl 'http://localhost:9200/enron/_count?pretty&q=subject:monetary'
+
+
+## Search for text in multiple fields
+
+### SQL
+
+    SELECT COUNT(*) from emails WHERE MATCH (subject) AGAINST ('monetary') OR MATCH(body) AGAINST ('monetary');
+
+### Elasticsearch
+
+    curl 'http://localhost:9200/enron/_count?pretty&q=subject:monetary+body:monetary'
+
+
+## Search for a phrase
+
+### SQL
+
+    SELECT COUNT(*) FROM emails WHERE body LIKE '%monetary fund%';
+
+### Elasticsearch
+
+    curl -XPOST 'http://localhost:9200/enron/_count?pretty' -d'
+    {
+      "query": {
+        "match_phrase": {
+          "body": "monetary fund"
+        }
+      }
+    }'