update mysql/mssql query/annotation help sections

public/app/plugins/datasource/mssql/partials/annotations.editor.html

@@ -28,12 +28,12 @@ An annotation is an event that is overlaid on top of graphs. The query can have
 Macros:
 - $__time(column) -> column AS time
 - $__timeEpoch(column) -> DATEDIFF(second, '1970-01-01', column) AS time
-- $__timeFilter(column) -> column >= DATEADD(s, 18446744066914186738, '1970-01-01') AND column <= DATEADD(s, 18446744066914187038, '1970-01-01')
+- $__timeFilter(column) -> column BETWEEN '2017-04-21T05:01:17Z' AND '2017-04-21T05:01:17Z'
 - $__unixEpochFilter(column) -> column >= 1492750877 AND column <= 1492750877
 
 Or build your own conditionals using these macros which just return the values:
-- $__timeFrom() -> DATEADD(second, 1492750877, '1970-01-01')
-- $__timeTo() -> DATEADD(second, 1492750877, '1970-01-01')
+- $__timeFrom() ->  '2017-04-21T05:01:17Z'
+- $__timeTo() ->  '2017-04-21T05:01:17Z'
 - $__unixEpochFrom() -> 1492750877
 - $__unixEpochTo() -> 1492750877
 		</pre>

public/app/plugins/datasource/mssql/partials/query.editor.html

@@ -49,7 +49,7 @@ Table:
 Macros:
 - $__time(column) -> column AS time
 - $__timeEpoch(column) -> DATEDIFF(second, '1970-01-01', column) AS time
-- $__timeFilter(column) -> column >= DATEADD(s, 18446744066914186738, '1970-01-01') AND column <= DATEADD(s, 18446744066914187038, '1970-01-01')
+- $__timeFilter(column) -> column BETWEEN '2017-04-21T05:01:17Z' AND '2017-04-21T05:01:17Z'
 - $__unixEpochFilter(column) -> column >= 1492750877 AND column <= 1492750877
 - $__timeGroup(column, '5m'[, fillvalue]) -&gt; CAST(ROUND(DATEDIFF(second, '1970-01-01', column)/300.0, 0) as bigint)*300. Providing a <i>fillValue</i> of <i>NULL</i> or floating value will automatically fill empty series in timerange with that value.
 
@@ -62,8 +62,8 @@ GROUP BY $__timeGroup(date_time_col, '1h')
 ORDER BY 1
 
 Or build your own conditionals using these macros which just return the values:
-- $__timeFrom() -&gt; DATEADD(second, 1492750877, '1970-01-01')
-- $__timeTo() -&gt; DATEADD(second, 1492750877, '1970-01-01')
+- $__timeFrom() -&gt;  '2017-04-21T05:01:17Z'
+- $__timeTo() -&gt;  '2017-04-21T05:01:17Z'
 - $__unixEpochFrom() -&gt; 1492750877
 - $__unixEpochTo() -&gt; 1492750877
 		</pre>

public/app/plugins/datasource/mysql/partials/annotations.editor.html

@@ -28,12 +28,12 @@ An annotation is an event that is overlaid on top of graphs. The query can have
 Macros:
 - $__time(column) -> UNIX_TIMESTAMP(column) as time (or as time_sec)
 - $__timeEpoch(column) -> UNIX_TIMESTAMP(column) as time (or as time_sec)
-- $__timeFilter(column) ->  UNIX_TIMESTAMP(time_date_time) > 1492750877 AND UNIX_TIMESTAMP(time_date_time) < 1492750877
+- $__timeFilter(column) -> column BETWEEN '2017-04-21T05:01:17Z' AND '2017-04-21T05:01:17Z'
 - $__unixEpochFilter(column) ->  time_unix_epoch > 1492750877 AND time_unix_epoch < 1492750877
 
 Or build your own conditionals using these macros which just return the values:
-- $__timeFrom() ->  FROM_UNIXTIME(1492750877)
-- $__timeTo() ->  FROM_UNIXTIME(1492750877)
+- $__timeFrom() ->  '2017-04-21T05:01:17Z'
+- $__timeTo() ->  '2017-04-21T05:01:17Z'
 - $__unixEpochFrom() ->  1492750877
 - $__unixEpochTo() ->  1492750877
 		</pre>

public/app/plugins/datasource/mysql/partials/query.editor.html

@@ -48,7 +48,7 @@ Table:
 Macros:
 - $__time(column) -> UNIX_TIMESTAMP(column) as time_sec
 - $__timeEpoch(column) -> UNIX_TIMESTAMP(column) as time_sec
-- $__timeFilter(column) ->  UNIX_TIMESTAMP(time_date_time) ≥ 1492750877 AND UNIX_TIMESTAMP(time_date_time) ≤ 1492750877
+- $__timeFilter(column) -> column BETWEEN '2017-04-21T05:01:17Z' AND '2017-04-21T05:01:17Z'
 - $__unixEpochFilter(column) ->  time_unix_epoch > 1492750877 AND time_unix_epoch < 1492750877
 - $__timeGroup(column,'5m') -> cast(cast(UNIX_TIMESTAMP(column)/(300) as signed)*300 as signed)
 
@@ -61,8 +61,8 @@ GROUP BY 1
 ORDER BY 1
 
 Or build your own conditionals using these macros which just return the values:
-- $__timeFrom() ->  FROM_UNIXTIME(1492750877)
-- $__timeTo() ->  FROM_UNIXTIME(1492750877)
+- $__timeFrom() ->  '2017-04-21T05:01:17Z'
+- $__timeTo() ->  '2017-04-21T05:01:17Z'
 - $__unixEpochFrom() ->  1492750877
 - $__unixEpochTo() ->  1492750877
 		</pre>