Add a few more MySQL macros:

* $__timeFrom() -> Returns the dashboard 'from' suitable for use querying
  against a MySQL TIMESTAMP field.
* $__timeTo() -> Returns the dashboard 'to' suitable for use querying
  against a MySQL TIMESTAMP field.
* $__unixEpochFiler(column) -> If you store timestamps as UNIX epoch's,
  this builds: column > 'from' AND column < 'to'
* $__unixEpochFrom() -> Returns the dashboard 'from' suitable for use querying
  against a MySQL integer field (UNIX epochs)
* $__unixEpochTo() -> Returns the dashboard 'to' suitable for use querying
  against a MySQL integer field (UNIX epochs)

pkg/tsdb/mysql/macros.go

@@ -74,6 +74,19 @@ func (m *MySqlMacroEngine) EvaluateMacro(name string, args []string) (string, er
 			return "", fmt.Errorf("missing time column argument for macro %v", name)
 		}
 		return fmt.Sprintf("%s >= FROM_UNIXTIME(%d) AND %s <= FROM_UNIXTIME(%d)", args[0], uint64(m.TimeRange.GetFromAsMsEpoch()/1000), args[0], uint64(m.TimeRange.GetToAsMsEpoch()/1000)), nil
+	case "__timeFrom":
+		return fmt.Sprintf("FROM_UNIXTIME(%d)", uint64(m.TimeRange.GetFromAsMsEpoch()/1000)), nil
+	case "__timeTo":
+		return fmt.Sprintf("FROM_UNIXTIME(%d)", uint64(m.TimeRange.GetToAsMsEpoch()/1000)), nil
+	case "__unixEpochFilter":
+		if len(args) == 0 {
+			return "", fmt.Errorf("missing time column argument for macro %v", name)
+		}
+		return fmt.Sprintf("%s >= %d AND %s <= %d", args[0], uint64(m.TimeRange.GetFromAsMsEpoch()/1000), args[0], uint64(m.TimeRange.GetToAsMsEpoch()/1000)), nil
+	case "__unixEpochFrom":
+		return fmt.Sprintf("%d", uint64(m.TimeRange.GetFromAsMsEpoch()/1000)), nil
+	case "__unixEpochTo":
+		return fmt.Sprintf("%d", uint64(m.TimeRange.GetToAsMsEpoch()/1000)), nil
 	default:
 		return "", fmt.Errorf("Unknown macro %v", name)
 	}

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

@@ -28,7 +28,14 @@ An annotation is an event that is overlayed on top of graphs. The query can have
 
 Macros:
 - $__time(column) -> UNIX_TIMESTAMP(column) as time_sec
-- $__timeFilter(column) ->  UNIX_TIMESTAMP(time_date_time) > from AND UNIX_TIMESTAMP(time_date_time) < 1492750877
+- $__timeFilter(column) ->  UNIX_TIMESTAMP(time_date_time) > 1492750877 AND UNIX_TIMESTAMP(time_date_time) < 1492750877
+- $__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)
+- $__unixEpochFrom() ->  1492750877
+- $__unixEpochTo() ->  1492750877
 		</pre>
 	</div>
 </div>

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

@@ -46,7 +46,14 @@ Table:
 
 Macros:
 - $__time(column) -> UNIX_TIMESTAMP(column) as time_sec
-- $__timeFilter(column) ->  UNIX_TIMESTAMP(time_date_time) ≥ from AND UNIX_TIMESTAMP(time_date_time) ≤ 1492750877
+- $__timeFilter(column) ->  UNIX_TIMESTAMP(time_date_time) ≥ 1492750877 AND UNIX_TIMESTAMP(time_date_time) ≤ 1492750877
+- $__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)
+- $__unixEpochFrom() ->  1492750877
+- $__unixEpochTo() ->  1492750877
 		</pre>
 	</div>