const maxDocumentSize = 10 << 20

// Reader - JSON record reader for S3Select.
type Reader struct {
	args       *ReaderArgs
	decoder    *jstream.Decoder
	valueCh    chan *jstream.MetaValue
	readCloser io.ReadCloser
}

// Read - reads single record.
func (r *Reader) Read(dst sql.Record) (sql.Record, error) {
	v, ok := <-r.valueCh
	if !ok {
		if err := r.decoder.Err(); err != nil {

package stmt_store

import (
	"context"
	"database/sql"
	"math"
	"sync"
	"time"

	"gorm.io/gorm/internal/lru"
)

type Stmt struct {
	*sql.Stmt
	Transaction bool
	prepared    chan struct{}
	prepareErr  error
}

func (stmt *Stmt) Error() error {
	return stmt.prepareErr
}

func (stmt *Stmt) Close() error {
	<-stmt.prepared

	if stmt.Stmt != nil {
		return stmt.Stmt.Close()
	}
	return nil

	initOnce once.Init

	id         event.TargetID
	args       RedisArgs
	pool       *redis.Pool
	store      store.Store[event.Event]
	firstPing  bool
	loggerOnce logger.LogOnce
	quitCh     chan struct{}
}

// ID - returns target ID.
func (target *RedisTarget) ID() event.TargetID {
	return target.id
}

// Name - returns the Name of the target.
func (target *RedisTarget) Name() string {

		buf.WriteString("map[")
		w.writeType(buf, typ.Key())
		buf.WriteByte(']')
		w.writeType(buf, typ.Elem())

	case *types.Chan:
		var s string
		switch typ.Dir() {
		case types.SendOnly:
			s = "chan<- "
		case types.RecvOnly:
			s = "<-chan "
		case types.SendRecv:
			s = "chan "
		default:
			panic("unreachable")
		}
		buf.WriteString(s)
		w.writeType(buf, typ.Elem())

	case *types.Alias:

func (c *minioBucketCollector) Describe(ch chan<- *prometheus.Desc) {
	ch <- c.desc
}

// Collect is called by the Prometheus registry when collecting metrics.
func (c *minioBucketCollector) Collect(out chan<- prometheus.Metric) {
	var wg sync.WaitGroup
	publish := func(in <-chan MetricV2) {
		defer wg.Done()
		for metric := range in {

	id         event.TargetID
	args       NATSArgs
	natsConn   *nats.Conn
	stanConn   stan.Conn
	jstream    nats.JetStream
	store      store.Store[event.Event]
	loggerOnce logger.LogOnce
	quitCh     chan struct{}
}

// ID - returns target ID.
func (target *NATSTarget) ID() event.TargetID {
	return target.id
}

// Name - returns the Name of the target.
func (target *NATSTarget) Name() string {

	currentSendCalls  atomic.Int64
	totalEvents       atomic.Int64
	eventsSkipped     atomic.Int64
	eventsErrorsTotal atomic.Int64

	sync.RWMutex
	targets map[TargetID]Target
	queue   chan asyncEvent
	ctx     context.Context

	statLock    sync.RWMutex
	targetStats map[TargetID]targetStat
}

type targetStat struct {
	// The number of concurrent async Send calls per targets
	currentSendCalls int64

}

// MQTTTarget - MQTT target.
type MQTTTarget struct {
	initOnce once.Init

	id         event.TargetID
	args       MQTTArgs
	client     mqtt.Client
	store      store.Store[event.Event]
	quitCh     chan struct{}
	loggerOnce logger.LogOnce
}

// ID - returns target ID.
func (target *MQTTTarget) ID() event.TargetID {
	return target.id
}

// Name - returns the Name of the target.

	BeforeCreate, AfterCreate bool
	BeforeUpdate, AfterUpdate bool
	BeforeDelete, AfterDelete bool
	BeforeSave, AfterSave     bool
	AfterFind                 bool
	err                       error
	initialized               chan struct{}
	namer                     Namer
	cacheStore                *sync.Map
}

func (schema *Schema) String() string {
	if schema.ModelType.Name() == "" {
		return fmt.Sprintf("%s(%s)", schema.Name, schema.Table)

	if err == errConfigNotFound {
		err = errNoSuchGroup
	}
	return err
}

func (ies *IAMEtcdStore) watch(ctx context.Context, keyPath string) <-chan iamWatchEvent {
	ch := make(chan iamWatchEvent)

	// go routine to read events from the etcd watch channel and send them
	// down `ch`
	go func() {
		for {
		outerLoop:
			watchCh := ies.client.Watch(ctx,