title: How to share mysql connection using sqlx?
body: <p>I'd like to share sqlx connection to be used in other functions. Here is what I came up  with:</p>
  
  <pre><code> var dbmap = initDb()
  
   func initDb() *sqlx.DB {         
          db, err := sqlx.Connect("mysql", "myuser:mypasswd@tcp(127.0.0.1:3306)/mydb")        
          if err != nil {
              log.Fatalln(err)
          }        
          // defer db.Close()        
          return db
      }
  </code></pre>
  
  <p>And then in functions I'd like to make queries like:</p>
  
  <pre><code>var users []User
  err := dbmap.Get(&amp;users, "SELECT * FROM user")
  </code></pre>
  
  <p>However I get panic:</p>
  
  <pre><code>scannable dest type slice with &gt;1 columns (3) in result
  
  
  2017/07/10 09:32:59 [Recovery] panic recovered:
  GET /api/v1/users HTTP/1.1
  Host: 127.0.0.1:8080
  Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
  Accept-Encoding: gzip, deflate, br
  Accept-Language: en-US,en;q=0.8
  Cache-Control: max-age=0
  Connection: keep-alive
  Upgrade-Insecure-Requests: 1
  User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/59.0.3071.115 Safari/537.36
  scannable dest type slice with &gt;1 columns (3) in result
  /usr/lib/go-1.6/src/runtime/panic.go:443 (0x436179)
      gopanic: reflectcall(nil, unsafe.Pointer(d.fn), deferArgs(d), uint32(d.siz), uint32(d.siz))
  /usr/lib/go-1.6/src/log/log.go:320 (0x46a551)
      Panic: panic(s)
  /home/me/go/src/myapp/main.go:84 (0x4098bd)
      GetUsers: log.Panic(err)
  /home/me/go/src/github.com/gin-gonic/gin/context.go:97 (0x47773a)
      (*Context).Next: c.handlers[c.index](c)
  /home/me/go/src/myapp/main.go:54 (0x40b170)
      Cors.func1: c.Next()
  /home/me/go/src/github.com/gin-gonic/gin/context.go:97 (0x47773a)
      (*Context).Next: c.handlers[c.index](c)
  /home/me/go/src/github.com/gin-gonic/gin/recovery.go:45 (0x489fd1)
      RecoveryWithWriter.func1: c.Next()
  /home/me/go/src/github.com/gin-gonic/gin/context.go:97 (0x47773a)
      (*Context).Next: c.handlers[c.index](c)
  /home/me/go/src/github.com/gin-gonic/gin/logger.go:63 (0x48926a)
      LoggerWithWriter.func1: c.Next()
  /home/me/go/src/github.com/gin-gonic/gin/context.go:97 (0x47773a)
      (*Context).Next: c.handlers[c.index](c)
  /home/me/go/src/github.com/gin-gonic/gin/gin.go:284 (0x47e592)
      (*Engine).handleHTTPRequest: context.Next()
  /home/me/go/src/github.com/gin-gonic/gin/gin.go:265 (0x47e1c7)
      (*Engine).ServeHTTP: engine.handleHTTPRequest(c)
  /usr/lib/go-1.6/src/net/http/server.go:2081 (0x60372e)
      serverHandler.ServeHTTP: handler.ServeHTTP(rw, req)
  /usr/lib/go-1.6/src/net/http/server.go:1472 (0x5fffde)
      (*conn).serve: serverHandler{c.server}.ServeHTTP(w, w.req)
  /usr/lib/go-1.6/src/runtime/asm_amd64.s:1998 (0x467171)
      goexit: BYTE    $0x90   // NOP
  </code></pre>
  
  <p>What's wrong here? How can I fix it?</p>