*$__timeFrom()* | Will be replaced by the start of the currently active time selection. For example, *FROM_UNIXTIME(1494410783)*
*$__timeTo()* | Will be replaced by the end of the currently active time selection. For example, *FROM_UNIXTIME(1494497183)*
*$__timeGroup(dateColumn,'5m')* | Will be replaced by an expression usable in GROUP BY clause. For example, *cast(cast(UNIX_TIMESTAMP(dateColumn)/(300) as signed)*300 as signed) as time_sec,*
*$__timeGroup(dateColumn,'5m',0)* | Same as above but with a fill parameter so all null values will be converted to the fill value (all null values would be set to zero using this example).
*$__unixEpochFilter(dateColumn)* | Will be replaced by a time range filter using the specified column name with times represented as unix timestamp. For example, *dateColumn > 1494410783 AND dateColumn < 1494497183*
*$__unixEpochFrom()* | Will be replaced by the start of the currently active time selection as unix timestamp. For example, *1494410783*
*$__unixEpochTo()* | Will be replaced by the end of the currently active time selection as unix timestamp. For example, *1494497183*
...
...
@@ -119,6 +120,19 @@ GROUP BY 1, metric_name
ORDERBY1
```
Example using the fill parameter in the $__timeGroup macro to convert null values to be zero instead:
```sql
SELECT
$__timeGroup(atimestamp,'24h',0)astime_sec,
avg(afloat)asvalue,
avarcharasmetric
FROMtestdata.grafana_metrics
WHERE$__timeFilter(atimestamp)
GROUPBY1,avarchar
ORDERBY1
```
Currently, there is no support for a dynamic group by time based on time range & panel width.
*$__timeFrom()* | Will be replaced by the start of the currently active time selection. For example, *to_timestamp(1494410783)*
*$__timeTo()* | Will be replaced by the end of the currently active time selection. For example, *to_timestamp(1494497183)*
*$__timeGroup(dateColumn,'5m')* | Will be replaced by an expression usable in GROUP BY clause. For example, *(extract(epoch from dateColumn)/300)::bigint*300 AS time*
*$__timeGroup(dateColumn,'5m', 0)* | Same as above but with a fill parameter so all null values will be converted to the fill value (all null values would be set to zero using this example).
*$__unixEpochFilter(dateColumn)* | Will be replaced by a time range filter using the specified column name with times represented as unix timestamp. For example, *dateColumn > 1494410783 AND dateColumn < 1494497183*
*$__unixEpochFrom()* | Will be replaced by the start of the currently active time selection as unix timestamp. For example, *1494410783*
*$__unixEpochTo()* | Will be replaced by the end of the currently active time selection as unix timestamp. For example, *1494497183*
...
...
@@ -103,6 +104,20 @@ GROUP BY time
ORDERBYtime
```
Example using the fill parameter in the $__timeGroup macro to convert null values to be zero instead: