From 3e599c49367a7242103a5c55122c933f56d653be Mon Sep 17 00:00:00 2001
From: jbranchaud <jbranchaud@gmail.com>
Date: Sun, 8 Nov 2015 11:43:53 -0600
Subject: [PATCH] Add Restart A Sequence as a postgres til.

---
 README.md                      |  1 +
 postgres/restart-a-sequence.md | 14 ++++++++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 postgres/restart-a-sequence.md

diff --git a/README.md b/README.md
index be6d195..47cb6f8 100644
--- a/README.md
+++ b/README.md
@@ -121,6 +121,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 - [List All Columns Of A Specific Type](postgres/list-all-columns-of-a-specific-type.md)
 - [List All Versions Of A Function](postgres/list-all-versions-of-a-function.md)
 - [List Database Users](postgres/list-database-users.md)
+- [Restart A Sequence](postgres/restart-a-sequence.md)
 - [Send A Command To psql](postgres/send-a-command-to-psql.md)
 - [Special Math Operators](postgres/special-math-operators.md)
 - [String Contains Another String](postgres/string-contains-another-string.md)
diff --git a/postgres/restart-a-sequence.md b/postgres/restart-a-sequence.md
new file mode 100644
index 0000000..27482e5
--- /dev/null
+++ b/postgres/restart-a-sequence.md
@@ -0,0 +1,14 @@
+# Restart A Sequence
+
+In postgres, if you are truncating a table or doing some other sort of
+destructive action on a table in a development or testing environment, you
+may notice that the id sequence for the primary key just keeps plugging
+along from where it last left off. The sequence can be reset to any value
+like so:
+
+```sql
+> alter sequence my_table_id_seq restart with 1;
+ALTER SEQUENCE
+```
+
+[source](http://www.postgresql.org/docs/current/static/sql-altersequence.html)