Bug fix (#28)

* Update version

* Fixed that collation condition checking

* Modified that mysql connection settings

Author: hatajoe

builder/builder.go

@@ -77,7 +77,7 @@ func willAlterColumnCharacterSet(old, new *mysql.Table) []string {
 		}
 		newCol := newCols[colName]
 		oldCol := oldCols[colName]
-		if newCol.CharacterSetName.Valid && oldCol.CompareCharacterSet(newCol) {
+		if !newCol.CharacterSetName.Valid || oldCol.CompareCharacterSet(newCol) {
 			continue
 		}
 		oldCols[colName].CollationName = newCol.CollationName

cmd/carpenter/command/before.go

@@ -2,6 +2,7 @@ package command
 
 import (
 	"database/sql"
+	"time"
 
 	"fmt"
 
@@ -30,6 +31,8 @@ func Before(c *cli.Context) error {
 	if err != nil {
 		return fmt.Errorf("err: db.Open is failed for reason %v", err)
 	}
+	db.SetMaxIdleConns(0)
 	db.SetMaxOpenConns(8)
+	db.SetConnMaxLifetime(time.Minute)
 	return nil
 }