Further develop example.sh

.gitignore

@@ -1,3 +1,4 @@
 /target
 publish.sh
 yank.sh
+example/

example.sh

@@ -1,8 +1,32 @@
 #!/bin/sh
-# Generates example dataset
+# Generates example dataset and does some stuff
 
-mkdir ./people
+
+if [ ! -d "example" ]; then
+  mkdir example
+fi
+
+cd example
+
+# Create a personnel dataset with three people
+# The name, ID, and state of residence are known for each person
+mkdir people
 touch ./people/Sandeep ./people/Sofia ./people/Wulfrum
 mtr set -s name=Sandeep -s id=2 -s state=CA ./people/Sandeep
 mtr set -s name=Sofia   -s id=1 -s state=WA ./people/Sofia
 mtr set -s name=Wulfrum -s id=0 -s state=CA ./people/Wulfrum
+
+# Index the dataset by ID
+mtr idx -v -k id ./people ./people:id
+
+# Index the dataset by state and ID
+mtr idx -v -k state -k id ./people ./people:state:id
+
+# Get the name of everybody from California
+mtr get -w state=CA -f name ./people
+
+# Get the name of everybody from California, taking advantage of the state index
+# This will avoid traversing irrelevant portions of the index
+mtr get -w state=CA -f name ./people:state:id
+
+cd ..