SQL select query for CSV/JSON (#6648)

select * , select column names have been implemented for CSV.
select * is implemented for JSON.

vendor/github.com/modern-go/reflect2/go_above_17.go

@@ -0,0 +1,8 @@
+//+build go1.7
+
+package reflect2
+
+import "unsafe"
+
+//go:linkname resolveTypeOff reflect.resolveTypeOff
+func resolveTypeOff(rtype unsafe.Pointer, off int32) unsafe.Pointer