adding postgresql resource

mattmakai · mattmakai · commit 244b438a5958 · 2016-03-10T07:58:45.000-08:00
diff --git a/all.html b/all.html
@@ -4667,6 +4667,11 @@ <h2>General PostgreSQL resources</h2>
   explains how to store and query JSON data, similar to how
   <a href="/no-sql-datastore.html">NoSQL data stores</a> operate.</p>
 </li>
+<li>
+<p><a href="http://eftimov.net/postgresql-indexes-first-principles">PostgreSQL Indexes: First Principles</a>
+  is a detailed look at what indexes are, what they are good for and
+  how to use them in PostgreSQL.</p>
+</li>
 </ul>
           <h1>MySQL</h1>
 <p>MySQL is an open source <a href="/databases.html">relational database</a> 
diff --git a/feeds/all.atom.xml b/feeds/all.atom.xml
@@ -1,2 +1,2 @@
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+<feed xmlns="http://www.w3.org/2005/Atom"><title>Matt Makai</title><link href="http://www.fullstackpython.com/" rel="alternate"></link><link href="http://www.fullstackpython.com/feeds/all.atom.xml" rel="self"></link><id>http://www.fullstackpython.com/</id><updated>2016-03-10T07:58:40Z</updated></feed>
diff --git a/postgresql.html b/postgresql.html
@@ -253,6 +253,11 @@ <h2>General PostgreSQL resources</h2>
   explains how to store and query JSON data, similar to how
   <a href="/no-sql-datastore.html">NoSQL data stores</a> operate.</p>
 </li>
+<li>
+<p><a href="http://eftimov.net/postgresql-indexes-first-principles">PostgreSQL Indexes: First Principles</a>
+  is a detailed look at what indexes are, what they are good for and
+  how to use them in PostgreSQL.</p>
+</li>
 </ul>
 <h3>Do you want to learn more about data or web apps?</h3>
 <div class="row">
diff --git a/source/content/pages/05-data/05-postgresql.markdown b/source/content/pages/05-data/05-postgresql.markdown
@@ -218,3 +218,7 @@ The post is an inside look at the evolution of Braintree's usage of the database
 * [Creating a Document-Store Hybrid in Postgres 9.5](https://blog.andyet.com/2016/02/04/postgres-9.5-document-store-hybrid/)
   explains how to store and query JSON data, similar to how
   [NoSQL data stores](/no-sql-datastore.html) operate.
+
+* [PostgreSQL Indexes: First Principles](http://eftimov.net/postgresql-indexes-first-principles)
+  is a detailed look at what indexes are, what they are good for and
+  how to use them in PostgreSQL.

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