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Update Postgresql example (#4642)

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The query with pg_size_pretty returns the value as a string, that way you can’t have a nice chart or make value comparison. Inserted new query to return value as number.
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Nicholas Amadori 2018-02-12 08:46:34 +01:00 committed by Fabian Affolter
parent ddf522bb7b
commit 88d890aa46
1 changed files with 8 additions and 2 deletions
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source/_components/sensor.sql.md
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@ -90,6 +90,12 @@ SELECT * FROM states WHERE entity_id='binary_sensor.xyz789' GROUP BY state ORDER
### {% linkable_title Database size in Postgres %} ### {% linkable_title Database size in Postgres %}
```sql ```yaml
SELECT pg_size_pretty(pg_database_size('Database Name')); - platform: sql
db_url: postgresql://user:password@host/dbname
queries:
- name: db_size
query: "SELECT (pg_database_size('dsmrreader')/1024/1024) as db_size;"
column: "db_size"
unit_of_measurement: MB
``` ```