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add targetQueryValue param to postgreSQL scaler docs #98

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Feb 26, 2020
Merged

add targetQueryValue param to postgreSQL scaler docs #98

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4 changes: 4 additions & 0 deletions content/scalers/postgresql.md
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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,7 @@ internally.
Finally, a user inserts a query that returns the desired value

- `query:` What query to poll postgresql with. Query must return an integer.
- `targetQueryValue` - a threshold that is used as `targetAverageValue` in HPA.

This is an example of using a full connection string:
```yaml
Expand All @@ -44,6 +45,7 @@ This is an example of using a full connection string:
metadata:
connection: AIRFLOW_CONN_AIRFLOW_DB
query: "SELECT ceil(COUNT(*)::decimal / 16) FROM task_instance WHERE state='running' OR state='queued'"
targetQueryValue: 1
```

While this is an example of specifying each parameter:
Expand All @@ -60,6 +62,7 @@ While this is an example of specifying each parameter:
dbName: postgresql
sslmode: disable
query: "SELECT ceil(COUNT(*)::decimal / 16) FROM task_instance WHERE state='running' OR state='queued'"
targetQueryValue: 1
```

### Authentication Parameters
Expand Down Expand Up @@ -93,4 +96,5 @@ spec:
metadata:
connection: AIRFLOW_CONN_AIRFLOW_DB
query: "SELECT ceil(COUNT(*)::decimal / 16) FROM task_instance WHERE state='running' OR state='queued'"
targetQueryValue: 1
```