sqlDB, _ := tx.DB()
	sqlDB.SetMaxOpenConns(1)

	tx = tx.Session(&gorm.Session{PrepareStmt: true})

	wg := sync.WaitGroup{}
	for i := 0; i < 100; i++ {
		wg.Add(1)
		go func() {
			user := User{Name: "jinzhu"}
			tx.Create(&user)

			var result User
			tx.First(&result)
			wg.Done()
		}()
	}
	wg.Wait()

	conn, ok := tx.ConnPool.(*gorm.PreparedStmtDB)
	AssertEqual(t, ok, true)

package gorm

import (
	"database/sql"
	"database/sql/driver"
	"encoding/json"
	"reflect"

	"github.com/jinzhu/now"
	"gorm.io/gorm/clause"
	"gorm.io/gorm/schema"
)

type DeletedAt sql.NullTime

// Scan implements the Scanner interface.
func (n *DeletedAt) Scan(value interface{}) error {
	return (*sql.NullTime)(n).Scan(value)
}

// Value implements the driver Valuer interface.

		newStmt.Settings.Store(k, v)
		return true
	})

	return newStmt
}

// SetColumn set column's value
//
//	stmt.SetColumn("Name", "jinzhu") // Hooks Method
//	stmt.SetColumn("Name", "jinzhu", true) // Callbacks Method
func (stmt *Statement) SetColumn(name string, value interface{}, fromCallbacks ...bool) {
	if v, ok := stmt.Dest.(map[string]interface{}); ok {
		v[name] = value

	// Clear
	DB.Model(&pets).Association("Toy").Clear()
	AssertAssociationCount(t, pets, "Toy", 0, "After Clear")
}

func TestHasOneAssociationReplaceWithNonValidValue(t *testing.T) {
	user := User{Name: "jinzhu", Account: Account{Number: "1"}}

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

package tests_test

import (
	"errors"
	"fmt"
	"regexp"
	"testing"
	"time"

	"github.com/jinzhu/now"
	"gorm.io/gorm"
	"gorm.io/gorm/clause"
	. "gorm.io/gorm/utils/tests"
)

func TestCreate(t *testing.T) {
	u1 := *GetUser("create", Config{})

	if results := DB.Create(&u1); results.Error != nil {
		t.Fatalf("errors happened when create: %v", results.Error)
	} else if results.RowsAffected != 1 {

	}
	DB.Migrator().DropTable(&AssociationEmptyUser{}, &AssociationEmptyPet{})
	DB.AutoMigrate(&AssociationEmptyUser{}, &AssociationEmptyPet{})

	id := uint(100)
	user := AssociationEmptyUser{
		ID:   id,
		Name: "jinzhu",
		Pets: []AssociationEmptyPet{
			{AssociationEmptyUserID: &id, Name: "bar"},
			{AssociationEmptyUserID: &id, Name: "foo"},
		},
	}

package schema

import (
	"context"
	"fmt"
	"reflect"
	"strings"
	"sync"

	"github.com/jinzhu/inflection"
	"golang.org/x/text/cases"
	"golang.org/x/text/language"

	"gorm.io/gorm/clause"
)

// RelationshipType relationship type
type RelationshipType string

const (
	HasOne    RelationshipType = "has_one"      // HasOneRel has one relationship

package schema

import (
	"context"
	"database/sql"
	"database/sql/driver"
	"fmt"
	"reflect"
	"strconv"
	"strings"
	"sync"
	"time"

	"github.com/jinzhu/now"
	"gorm.io/gorm/clause"
	"gorm.io/gorm/utils"
)

// special types' reflect type
var (
	TimeReflectType    = reflect.TypeOf(time.Time{})
	TimePtrReflectType = reflect.TypeOf(&time.Time{})
	ByteReflectType    = reflect.TypeOf(uint8(0))
)

type (

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Gunaydin, Huaizheng, Ido Shamay, Ikaro Silva, Ilya Edrenkin, Immexxx, James
Mishra, Jamie Cooke, Jay Young, Jayaram Bobba, Jianfei Wang, jinghua2, Joey
Meyer, John Maidens, Jonghoon Jin, Julian Villella, Jun Kim, Jun Shi, Junwei
Pan, jyegerlehner, Karan Desai, Karel Van De Plassche, Kb Sriram,