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15 lines
479 B
Markdown
15 lines
479 B
Markdown
# Restart A Sequence
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In postgres, if you are truncating a table or doing some other sort of
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destructive action on a table in a development or testing environment, you
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may notice that the id sequence for the primary key just keeps plugging
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along from where it last left off. The sequence can be reset to any value
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like so:
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```sql
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> alter sequence my_table_id_seq restart with 1;
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ALTER SEQUENCE
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```
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[source](http://www.postgresql.org/docs/current/static/sql-altersequence.html)
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