db.Mux.RLock()
	if stmt, ok := db.Stmts[query]; ok && (!stmt.Transaction || isTransaction) {
		db.Mux.RUnlock()
		// wait for other goroutines prepared
		<-stmt.prepared
		if stmt.prepareErr != nil {
			return Stmt{}, stmt.prepareErr
		}

		return *stmt, nil
	}
	db.Mux.RUnlock()

	db.Mux.Lock()
	// double check

	if !ok {
		t.Fatalf("should assign PreparedStatement Manager back to database when using PrepareStmt mode")
	}

	pdb.Mux.Lock()
	if len(pdb.Stmts) == 0 {
		pdb.Mux.Unlock()
		t.Fatalf("prepared stmt can not be empty")
	}
	pdb.Mux.Unlock()

	pdb.Reset()
	pdb.Mux.Lock()
	defer pdb.Mux.Unlock()
	if len(pdb.Stmts) != 0 {
		t.Fatalf("prepared stmt should be empty")
	}
}

import (
	"encoding/json"
	"io"
	"net/http"
	"strconv"

	jsoniter "github.com/json-iterator/go"
	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/config/storageclass"
	"github.com/minio/mux"
	"github.com/minio/pkg/v3/policy"
)

var (
	// error returned when remote tier already exists
	errTierAlreadyExists = AdminError{
		Code:       "XMinioAdminTierAlreadyExists",

	"fmt"
	"io"
	"mime"
	"mime/multipart"
	"net/http"
	"net/textproto"
	"net/url"
	"path"
	"runtime"
	"sort"
	"strconv"
	"strings"
	"sync"

	"github.com/google/uuid"
	"github.com/minio/mux"
	"github.com/valyala/bytebufferpool"

	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio-go/v7"
	"github.com/minio/minio-go/v7/pkg/set"
	"github.com/minio/minio-go/v7/pkg/tags"

	"strings"
	"time"
	"unicode/utf8"

	"github.com/klauspost/compress/zip"
	"github.com/minio/madmin-go/v3"
	"github.com/minio/minio/internal/auth"
	"github.com/minio/minio/internal/config/dns"
	"github.com/minio/mux"
	xldap "github.com/minio/pkg/v3/ldap"
	"github.com/minio/pkg/v3/policy"
	"github.com/puzpuzpuz/xsync/v3"
)

// RemoveUser - DELETE /minio/admin/v3/remove-user?accessKey=<access_key>

	objectlock "github.com/minio/minio/internal/bucket/object/lock"
	"github.com/minio/minio/internal/bucket/versioning"
	"github.com/minio/minio/internal/event"
	"github.com/minio/minio/internal/kms"
	"github.com/minio/mux"
	"github.com/minio/pkg/v3/policy"
)

const (
	bucketQuotaConfigFile = "quota.json"
	bucketTargetsFile     = "bucket-targets.json"
)

// PutBucketQuotaConfigHandler - PUT Bucket quota configuration.

	"github.com/minio/minio/internal/hash"
	"github.com/minio/minio/internal/hash/sha256"
	xhttp "github.com/minio/minio/internal/http"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/mux"
	"github.com/minio/pkg/v3/policy"
	"github.com/minio/sio"
)

// Multipart objectAPIHandlers

// NewMultipartUploadHandler - New multipart upload.

	xhttp "github.com/minio/minio/internal/http"
	xioutil "github.com/minio/minio/internal/ioutil"
	"github.com/minio/minio/internal/kms"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/mux"
	"github.com/minio/pkg/v3/logger/message/log"
	xnet "github.com/minio/pkg/v3/net"
	"github.com/minio/pkg/v3/policy"
	"github.com/secure-io/sio-go"
	"github.com/zeebo/xxh3"
)

const (

	xioutil "github.com/minio/minio/internal/ioutil"
	"github.com/minio/minio/internal/kms"
	"github.com/minio/minio/internal/logger"
	"github.com/minio/minio/internal/s3select"
	"github.com/minio/mux"
	"github.com/minio/pkg/v3/policy"
)

// supportedHeadGetReqParams - supported request parameters for GET and HEAD presigned request.
var supportedHeadGetReqParams = map[string]string{

			tx.Statement.ConnPool = &PreparedStmtTX{
				Tx:             t,
				PreparedStmtDB: preparedStmt,
			}
		default:
			tx.Statement.ConnPool = &PreparedStmtDB{
				ConnPool: db.Config.ConnPool,
				Mux:      preparedStmt.Mux,
				Stmts:    preparedStmt.Stmts,
			}
		}
		txConfig.ConnPool = tx.Statement.ConnPool
		txConfig.PrepareStmt = true
	}

	if config.SkipHooks {
		tx.Statement.SkipHooks = true
	}