Merge pull request #32 from liquidata-inc/zachmu/unary-plus

Support for unary plus operator (no-op operator)

Author: zachmu

engine_test.go

@@ -57,6 +57,14 @@ var queries = []queryTest{
 		"SELECT -i FROM mytable;",
 		[]sql.Row{{int64(-1)}, {int64(-2)}, {int64(-3)}},
 	},
+	{
+		"SELECT +i FROM mytable;",
+		[]sql.Row{{int64(1)}, {int64(2)}, {int64(3)}},
+	},
+	{
+		"SELECT + - i FROM mytable;",
+		[]sql.Row{{int64(-1)}, {int64(-2)}, {int64(-3)}},
+	},
 	{
 		"SELECT i FROM mytable where -i = -2;",
 		[]sql.Row{{int64(2)}},

go.mod

@@ -1,28 +1,30 @@
 module github.com/src-d/go-mysql-server
 
 require (
-	github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d // indirect
 	github.com/VividCortex/gohistogram v1.0.0 // indirect
 	github.com/go-kit/kit v0.8.0
-	github.com/go-ole/go-ole v1.2.4 // indirect
 	github.com/go-sql-driver/mysql v1.4.1
-	github.com/gogo/protobuf v1.2.1 // indirect
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
-	github.com/golang/protobuf v1.3.0 // indirect
+	github.com/google/btree v1.0.0 // indirect
+	github.com/google/go-cmp v0.3.0 // indirect
 	github.com/hashicorp/golang-lru v0.5.3
 	github.com/mitchellh/hashstructure v1.0.0
 	github.com/oliveagle/jsonpath v0.0.0-20180606110733-2e52cf6e6852
-	github.com/opentracing/opentracing-go v1.0.2
-	github.com/pilosa/pilosa v1.3.0
-	github.com/sanity-io/litter v1.1.0
-	github.com/shirou/w32 v0.0.0-20160930032740-bb4de0191aa4 // indirect
-	github.com/sirupsen/logrus v1.3.0
+	github.com/opentracing/opentracing-go v1.1.0
+	github.com/pilosa/pilosa v1.4.0
+	github.com/sanity-io/litter v1.2.0
+	github.com/sirupsen/logrus v1.4.2
 	github.com/spf13/cast v1.3.0
-	github.com/src-d/go-oniguruma v1.0.0
-	github.com/stretchr/testify v1.3.0
-	go.etcd.io/bbolt v1.3.2
-	google.golang.org/grpc v1.19.0 // indirect
+	github.com/src-d/go-oniguruma v1.1.0
+	github.com/stretchr/testify v1.4.0
+	go.etcd.io/bbolt v1.3.3
+	golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3 // indirect
+	golang.org/x/net v0.0.0-20191119073136-fc4aabc6c914 // indirect
+	golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135 // indirect
+	google.golang.org/appengine v1.6.5 // indirect
+	google.golang.org/grpc v1.25.1 // indirect
 	gopkg.in/src-d/go-errors.v1 v1.0.0
 	gopkg.in/yaml.v2 v2.2.2
+	honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc // indirect
 	vitess.io/vitess v3.0.0-rc.3.0.20190602171040-12bfde34629c+incompatible
 )