fix #398. Support now() and NOW() in the query lang

CHANGELOG.md

@@ -356,3 +356,5 @@
   This should be a backward compatible change, but is here for documentation only
 
 ### Bugfixes
+
+- [Issue #398](https://github.com/influxdb/influxdb/issues/398). Support now() and NOW() in the query lang

src/parser/query_api.go

@@ -239,7 +239,7 @@ func parseTimeString(t string) (*time.Time, error) {
 // parse time expressions, e.g. now() - 1d
 func parseTime(value *Value) (int64, error) {
 	if value.Type != ValueExpression {
-		if value.IsFunctionCall() && value.Name == "now" {
+		if value.IsFunctionCall() && strings.ToLower(value.Name) == "now" {
 			return time.Now().UnixNano(), nil
 		}
 

src/parser/query_api_test.go

@@ -1,9 +1,9 @@
 package parser
 
 import (
-	. "launchpad.net/gocheck"
 	"math"
 	"time"
+	. "launchpad.net/gocheck"
 )
 
 type QueryApiSuite struct{}
@@ -26,6 +26,7 @@ func (self *QueryApiSuite) TestWillReturnSingleSeries(c *C) {
 func (self *QueryApiSuite) TestGetStartTime(c *C) {
 	for _, queryStr := range []string{
 		"select * from t where time > now() - 1d and time < now() - 1h;",
+		"select * from t where time > NOW() - 1d and time < NOW() - 1h;",
 		"select * from t where now() - 1d < time and time < now() - 1h;",
 	} {
 		query, err := ParseSelectQuery(queryStr)