updated units supported by INTERVAL (#4832)

content/influxdb/cloud-iox/reference/sql/_index.md

@@ -118,6 +118,20 @@ INTERVAL '4 minutes'
 INTERVAL '12 days 6 hours 30 minutes'
 ```
 
+The following units of time are supported:
+
+- nanoseconds
+- microseconds
+- milliseconds
+- seconds
+- minutes
+- hours 
+- days 
+- weeks
+- months 
+- years
+- century
+
 ## Operators
 
 Operators are reserved words or characters which perform certain operations, inluding comparisons and arithmetic. 

content/influxdb/cloud-iox/reference/sql/data-types.md

@@ -155,12 +155,17 @@ YYYY-MM-DD 00:00:00
 
 The INTERVAL data type can be used with the following precision: 
 
-- year
-- month
-- day
-- hour
-- minute
+- nanosecond
+- microsecond
+- millisecond
 - second
+- minute
+- hour
+- day 
+- week
+- month
+- year
+- century
 
 ##### Example interval literals
 ```sql

content/influxdb/cloud-iox/reference/sql/functions/time-and-date.md

@@ -69,15 +69,17 @@ date_bin(interval, expression, origin-timestamp)
 
 The following intervals are supported:
 
- - milliseconds
- - seconds
- - minutes
- - hours 
- - days 
- - weeks
- - months 
- - years
- - century
+- nanoseconds
+- microseconds
+- milliseconds
+- seconds
+- minutes
+- hours 
+- days 
+- weeks
+- months 
+- years
+- century
 
 {{< expand-wrapper >}}
 {{% expand "View `date_bin` query example" %}}