examples/extract/output.txt
+------------+-------------+---------+
| date | close | month |
+------------+-------------+---------+
| 2015-03-11 | 2040.23999 | 2015-03 |
| 2015-03-12 | 2065.949951 | 2015-03 |
| 2015-03-13 | 2053.399902 | 2015-03 |
| 2015-03-16 | 2081.189941 | 2015-03 |
| 2015-03-17 | 2074.280029 | 2015-03 |
| 2015-03-18 | 2099.5 | 2015-03 |
| 2015-03-19 | 2089.27002 | 2015-03 |
| 2015-03-20 | 2108.100098 | 2015-03 |
| 2015-03-23 | 2104.419922 | 2015-03 |
| 2015-03-24 | 2091.5 | 2015-03 |
+------------+-------------+---------+