adding coalesce to write usage query

merencia · merencia · commit 01df6cf23ee2 · 2018-07-06T13:55:21.000-03:00
diff --git a/gauges/write_throughput.go b/gauges/write_throughput.go
@@ -7,9 +7,9 @@ import (
 )
 
 var databaseWritingUsageQuery = `
-	SELECT tup_inserted
-		 , tup_updated
-		 , tup_deleted 
+	SELECT coalesce(tup_inserted, 0) as tup_inserted
+		 , coalesce(tup_updated, 0) as tup_updated
+		 , coalesce(tup_deleted, 0) as tup_deleted
 	  FROM pg_stat_database 
 	 WHERE datname = current_database()
 `

Original file line number	Diff line number	Diff line change
`@@ -7,9 +7,9 @@ import (`
`7`	`7`	`)`
`8`	`8`
`9`	`9`	var databaseWritingUsageQuery = `
`10`		`- SELECT tup_inserted`
`11`		`- , tup_updated`
`12`		`- , tup_deleted`
	`10`	`+ SELECT coalesce(tup_inserted, 0) as tup_inserted`
	`11`	`+ , coalesce(tup_updated, 0) as tup_updated`
	`12`	`+ , coalesce(tup_deleted, 0) as tup_deleted`
`13`	`13`	`FROM pg_stat_database`
`14`	`14`	`WHERE datname = current_database()`
`15`	`15`	`