Delete CHANGELOG.md

CHANGELOG.md

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-# Change Log
-
-## v1.0
-
-#### Breaking Changes
-
-* **`gorm.Open` return `*gorm.DB` instead of `gorm.DB`**
-
-* **Updating will only update changed fields**
-
-  Most applications won't be affected, only when you are changing updating values in callbacks like `BeforeSave`, `BeforeUpdate`, you should use `scope.SetColumn` then, for example:
-
-  ```go
-  func (user *User) BeforeUpdate(scope *gorm.Scope) {
-    if pw, err := bcrypt.GenerateFromPassword(user.Password, 0); err == nil {
-      scope.SetColumn("EncryptedPassword", pw)
-      // user.EncryptedPassword = pw  // doesn't work, won't including EncryptedPassword field when updating
-    }
-  }
-  ```
-
-* **Soft delete's default querying scope will only check `deleted_at IS NULL`**
-
-  Before `db.Find(&user)` will generate querying SQL if user has `DeletedAt` field
-
-  `SELECT * FROM users WHERE deleted_at IS NULL OR deleted_at <= '0001-01-02'`
-
-  Now won't include blank time check `<= '0001-01-02` anymore, will generat SQL like:
-
-  `SELECT * FROM users WHERE deleted_at IS NULL`
-
-  So your application's `DeletedAt` field should not use `time.Time` as data type, need to use pointer `*time.Time` or something like `NullTime`.
-  If you are using `gorm.Model`, then you are good, nothing need to be change, just make sure all records using blank time for `deleted_at` has been set to NULL, sample migration script:
-
-  ```go
-  import (
-      "github.com/jinzhu/now"
-  )
-
-  func main() {
-    var models = []interface{}{&User{}, &Image{}}
-    for _, model := range models {
-      db.Unscoped().Model(model).Where("deleted_at < ?", now.MustParse("0001-01-02")).Update("deleted_at", gorm.Expr("NULL"))
-    }
-  }
-  ```
-
-* **New ToDBName logic**
-
-  Before when GORM convert Struct, Field's name to db name, only those common initialisms from [golint](https://github.com/golang/lint/blob/master/lint.go#L702) like `HTTP`, `URI` are special handled.
-
-  So field `HTTP`'s db name will be `http` not `h_t_t_p`, but some other initialisms like `SKU` that not in golint, it's db name will be `s_k_u`, this release fixed this, any upper case initialisms should be converted correctly.
-
-  If your applications using some upper case initialisms which doesn't exist in [golint](https://github.com/golang/lint/blob/master/lint.go#L702), you need to overwrite generated column name with tag, like `sql:"column:s_k_u"`, or alert your database's column name according to new logic
-
-* **Builtin `Hstore` struct for postgres has been moved to `github.com/jinzhu/gorm/dialects/postgres`**