diff --git a/pkg/auth/auth.go b/pkg/auth/auth.go
index 87cec7b28..8bba3c5cc 100644
--- a/pkg/auth/auth.go
+++ b/pkg/auth/auth.go
@@ -7,6 +7,7 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
+
 	"github.com/pg-sharding/spqr/pkg/client"
 	"github.com/pg-sharding/spqr/pkg/conn"
 	"github.com/pg-sharding/spqr/pkg/spqrlog"
diff --git a/pkg/datashard/datashard.go b/pkg/datashard/datashard.go
index bff7ff7b8..7bd6ceeed 100644
--- a/pkg/datashard/datashard.go
+++ b/pkg/datashard/datashard.go
@@ -62,7 +62,7 @@ type Conn struct {
 
 	tx_served int64
 
-	id string
+	idSelf uint
 
 	status txstatus.TXStatus
 
@@ -351,7 +351,7 @@ func (sh *Conn) SHKey() kr.ShardKey {
 // Returns:
 // - uint: The unique identifier of the Conn struct.
 func (sh *Conn) ID() uint {
-	return spqrlog.GetPointer(sh)
+	return sh.idSelf
 }
 
 // Usr returns the username associated with the Conn struct.
@@ -420,6 +420,8 @@ func NewShard(
 		stmtDesc: map[uint64]*prepstatement.PreparedStatementDescriptor{},
 	}
 
+	dtSh.idSelf = spqrlog.GetPointer(dtSh)
+
 	dtSh.dedicated = pgi
 
 	if dtSh.dedicated.Status() == conn.NotInitialized {
@@ -520,7 +522,7 @@ func (sh *Conn) fire(q string) error {
 			return err
 		} else {
 			spqrlog.Zero.Debug().
-				Str("shard", sh.id).
+				Uint("id", sh.ID()).
 				Type("type", msg).
 				Msg("shard rollback response")
 
diff --git a/pkg/pool/dbpool.go b/pkg/pool/dbpool.go
index f754cf700..eb2b9fbe2 100644
--- a/pkg/pool/dbpool.go
+++ b/pkg/pool/dbpool.go
@@ -355,14 +355,14 @@ func (s *InstancePoolImpl) ForEach(cb func(sh shard.Shardinfo) error) error {
 func (s *InstancePoolImpl) Put(sh shard.Shard) error {
 	if sh.Sync() != 0 {
 		spqrlog.Zero.Error().
-			Uint("shard", spqrlog.GetPointer(sh)).
+			Uint("shard", sh.ID()).
 			Int64("sync", sh.Sync()).
 			Msg("discarding unsync connection")
 		return s.pool.Discard(sh)
 	}
 	if sh.TxStatus() != txstatus.TXIDLE {
 		spqrlog.Zero.Error().
-			Uint("shard", spqrlog.GetPointer(sh)).
+			Uint("shard", sh.ID()).
 			Str("txstatus", sh.TxStatus().String()).
 			Msg("discarding non-idle connection")
 		return s.pool.Discard(sh)
diff --git a/router/client/client.go b/router/client/client.go
index 61ee03db3..5d48fc3c7 100644
--- a/router/client/client.go
+++ b/router/client/client.go
@@ -117,6 +117,8 @@ type PsqlClient struct {
 	show_notice_messages bool
 	maintain_params      bool
 
+	idSelf uint
+
 	/* protects server */
 	mu     sync.RWMutex
 	server server.Server
@@ -241,6 +243,8 @@ func NewPsqlClient(pgconn conn.RawConn, pt port.RouterPortType, defaultRouteBeha
 		show_notice_messages: showNoticeMessages,
 	}
 
+	cl.idSelf = spqrlog.GetPointer(cl)
+
 	return cl
 }
 
@@ -539,7 +543,7 @@ func (cl *PsqlClient) ReplyWarningf(fmtString string, args ...interface{}) error
 }
 
 func (cl *PsqlClient) ID() uint {
-	return spqrlog.GetPointer(cl)
+	return cl.idSelf
 }
 
 func (cl *PsqlClient) Shards() []shard.Shard {
diff --git a/router/frontend/frontend.go b/router/frontend/frontend.go
index 603ceed72..1f3afe345 100644
--- a/router/frontend/frontend.go
+++ b/router/frontend/frontend.go
@@ -9,6 +9,7 @@ import (
 	"github.com/pg-sharding/spqr/pkg/spqrlog"
 	"github.com/pg-sharding/spqr/pkg/workloadlog"
 	"github.com/pg-sharding/spqr/router/client"
+	"github.com/pg-sharding/spqr/router/parser"
 	"github.com/pg-sharding/spqr/router/poolmgr"
 	"github.com/pg-sharding/spqr/router/qrouter"
 	"github.com/pg-sharding/spqr/router/relay"
@@ -92,7 +93,7 @@ func ProcessMessage(qr qrouter.QueryRouter, cmngr poolmgr.PoolMgr, rst relay.Rel
 		}
 
 		spqrlog.Zero.Debug().
-			Uint("client", spqrlog.GetPointer(rst.Client())).
+			Uint("client", rst.Client().ID()).
 			Msg("client connection synced")
 		return nil
 	case *pgproto3.Parse:
@@ -150,17 +151,17 @@ func ProcessMessage(qr qrouter.QueryRouter, cmngr poolmgr.PoolMgr, rst relay.Rel
 	}
 }
 
-func Frontend(qr qrouter.QueryRouter, cl client.RouterClient, cmngr poolmgr.PoolMgr, rcfg *config.Router, writer workloadlog.WorkloadLog) error {
+func Frontend(qr qrouter.QueryRouter, cl client.RouterClient, cmngr poolmgr.PoolMgr, rcfg *config.Router, writer workloadlog.WorkloadLog, qp parser.Parser) error {
 	spqrlog.Zero.Info().
 		Str("user", cl.Usr()).
 		Str("db", cl.DB()).
-		Uint("client", spqrlog.GetPointer(cl)).
+		Uint("client", cl.ID()).
 		Msg("process frontend for route")
 
 	if rcfg.PgprotoDebug {
 		_ = cl.ReplyDebugNoticef("process frontend for route %s %s", cl.Usr(), cl.DB())
 	}
-	rst := relay.NewRelayState(qr, cl, cmngr, rcfg)
+	rst := relay.NewRelayState(qr, cl, cmngr, rcfg, qp)
 
 	defer rst.Close()
 
diff --git a/router/frontend/frontend_test.go b/router/frontend/frontend_test.go
index 4b2de149b..f782aec2c 100644
--- a/router/frontend/frontend_test.go
+++ b/router/frontend/frontend_test.go
@@ -16,6 +16,7 @@ import (
 	mockcl "github.com/pg-sharding/spqr/router/mock/client"
 	mockqr "github.com/pg-sharding/spqr/router/mock/qrouter"
 	mocksrv "github.com/pg-sharding/spqr/router/mock/server"
+	"github.com/pg-sharding/spqr/router/parser"
 	"github.com/pg-sharding/spqr/router/route"
 	"github.com/pg-sharding/spqr/router/routingstate"
 
@@ -38,11 +39,13 @@ func TestFrontendSimpleEOF(t *testing.T) {
 	cl.EXPECT().DB().AnyTimes().Return("db1")
 	cl.EXPECT().Close().Times(1)
 
+	cl.EXPECT().ID().AnyTimes().Return(uint(322332))
+
 	cl.EXPECT().Receive().Times(1).Return(nil, io.EOF)
 
 	cmngr.EXPECT().UnRouteCB(gomock.Any(), gomock.Any()).Times(1)
 
-	err := frontend.Frontend(qr, cl, cmngr, &config.Router{}, nil)
+	err := frontend.Frontend(qr, cl, cmngr, &config.Router{}, nil, parser.NewQParser())
 
 	assert.NoError(err, "")
 }
@@ -151,7 +154,7 @@ func TestFrontendSimple(t *testing.T) {
 
 	cl.EXPECT().Receive().Times(1).Return(nil, io.EOF)
 
-	err := frontend.Frontend(qr, cl, cmngr, &config.Router{}, nil)
+	err := frontend.Frontend(qr, cl, cmngr, &config.Router{}, nil, parser.NewQParser())
 
 	assert.NoError(err, "")
 }
@@ -315,7 +318,7 @@ func TestFrontendXProto(t *testing.T) {
 
 	cl.EXPECT().Receive().Times(1).Return(nil, io.EOF)
 
-	err := frontend.Frontend(qr, cl, cmngr, &config.Router{}, nil)
+	err := frontend.Frontend(qr, cl, cmngr, &config.Router{}, nil, parser.NewQParser())
 
 	assert.NoError(err, "")
 }
@@ -448,7 +451,7 @@ func TestFrontendSimpleCopyIn(t *testing.T) {
 
 	cl.EXPECT().Receive().Times(1).Return(nil, io.EOF)
 
-	err := frontend.Frontend(qr, cl, cmngr, &config.Router{}, nil)
+	err := frontend.Frontend(qr, cl, cmngr, &config.Router{}, nil, parser.NewQParser())
 
 	assert.NoError(err, "")
 }
diff --git a/router/instance/instance.go b/router/instance/instance.go
index 466a17d90..7b15ac3d2 100644
--- a/router/instance/instance.go
+++ b/router/instance/instance.go
@@ -15,6 +15,7 @@ import (
 	"github.com/pg-sharding/spqr/qdb"
 	"github.com/pg-sharding/spqr/router/console"
 	"github.com/pg-sharding/spqr/router/frontend"
+	"github.com/pg-sharding/spqr/router/parser"
 	"github.com/pg-sharding/spqr/router/poolmgr"
 	"github.com/pg-sharding/spqr/router/port"
 	"github.com/pg-sharding/spqr/router/qrouter"
@@ -35,6 +36,7 @@ type RouterInstance interface {
 type InstanceImpl struct {
 	RuleRouter rulerouter.RuleRouter
 	Qrouter    qrouter.QueryRouter
+	Qp         parser.Parser
 	AdmConsole console.Console
 	Mgr        meta.EntityMgr
 	Writer     workloadlog.WorkloadLog
@@ -141,9 +143,12 @@ func NewRouter(ctx context.Context, rcfg *config.Router, ns string, persist bool
 		return nil, err
 	}
 
+	qp := parser.NewSharedParser()
+
 	r := &InstanceImpl{
 		RuleRouter: rr,
 		Qrouter:    qr,
+		Qp:         qp,
 		AdmConsole: localConsole,
 		Mgr:        lc,
 		stchan:     stchan,
@@ -189,7 +194,7 @@ func (r *InstanceImpl) serv(netconn net.Conn, pt port.RouterPortType) error {
 		_, _ = routerClient.Route().ReleaseClient(routerClient.ID())
 	}()
 
-	return frontend.Frontend(r.Qrouter, routerClient, cmngr, r.RuleRouter.Config(), r.Writer)
+	return frontend.Frontend(r.Qrouter, routerClient, cmngr, r.RuleRouter.Config(), r.Writer, r.Qp)
 }
 
 func (r *InstanceImpl) Run(ctx context.Context, listener net.Listener, pt port.RouterPortType) error {
diff --git a/router/parser/cooment_test.go b/router/parser/comment_test.go
similarity index 100%
rename from router/parser/cooment_test.go
rename to router/parser/comment_test.go
diff --git a/router/parser/parser.go b/router/parser/parser.go
new file mode 100644
index 000000000..85bca4f6f
--- /dev/null
+++ b/router/parser/parser.go
@@ -0,0 +1,9 @@
+package parser
+
+import "github.com/pg-sharding/lyx/lyx"
+
+type Parser interface {
+	Parse(query string) (ParseState, string, error)
+
+	Stmt() lyx.Node
+}
diff --git a/router/parser/qparser.go b/router/parser/qparser.go
index 0737181db..21cc8dea3 100644
--- a/router/parser/qparser.go
+++ b/router/parser/qparser.go
@@ -100,6 +100,8 @@ type ParseStateExplain struct {
 	Query lyx.Node
 }
 
+var _ Parser = &QParser{}
+
 // TODO : unit tests
 func (qp *QParser) Parse(query string) (ParseState, string, error) {
 	qp.query = query
@@ -247,3 +249,7 @@ func (qp *QParser) Parse(query string) (ParseState, string, error) {
 
 	return ParseStateQuery{}, comment, nil
 }
+
+func NewQParser() Parser {
+	return &QParser{}
+}
diff --git a/router/parser/shared_parser.go b/router/parser/shared_parser.go
new file mode 100644
index 000000000..457a5dd1a
--- /dev/null
+++ b/router/parser/shared_parser.go
@@ -0,0 +1,54 @@
+package parser
+
+import (
+	"sync"
+
+	"github.com/pg-sharding/lyx/lyx"
+)
+
+type CacheEntry struct {
+	ps   ParseState
+	comm string
+}
+
+// Parser shared accross all relays.
+// caches parse result.
+type SharedParser struct {
+	parseCache sync.Map
+
+	mu         sync.Mutex
+	underlying Parser
+}
+
+// Stmt implements Parser.
+func (shp *SharedParser) Stmt() lyx.Node {
+	return shp.underlying.Stmt()
+}
+
+var _ Parser = &SharedParser{}
+
+func (shp *SharedParser) Parse(query string) (ParseState, string, error) {
+	ce, ok := shp.parseCache.Load(query)
+	if ok {
+		return ce.(CacheEntry).ps, ce.(CacheEntry).comm, nil
+	}
+
+	p := NewQParser()
+	state, comm, err := p.Parse(query)
+
+	if err == nil {
+		shp.parseCache.Store(query, CacheEntry{
+			ps:   state,
+			comm: comm,
+		})
+	}
+
+	return state, comm, err
+}
+
+func NewSharedParser() Parser {
+	return &SharedParser{
+		parseCache: sync.Map{},
+		underlying: NewQParser(),
+	}
+}
diff --git a/router/relay/phs_test.go b/router/relay/phs_test.go
index 021a34b73..8bb6cf6ab 100644
--- a/router/relay/phs_test.go
+++ b/router/relay/phs_test.go
@@ -4,6 +4,7 @@ import (
 	"testing"
 
 	"github.com/pg-sharding/spqr/pkg/config"
+	"github.com/pg-sharding/spqr/router/parser"
 	"github.com/pg-sharding/spqr/router/relay"
 	"github.com/stretchr/testify/assert"
 
@@ -23,7 +24,7 @@ func TestTxSimpleCommit(t *testing.T) {
 	cl := mockcl.NewMockRouterClient(ctrl)
 	qr := mockqr.NewMockQueryRouter(ctrl)
 
-	rst := relay.NewRelayState(qr, cl, cmngr, &config.Router{})
+	rst := relay.NewRelayState(qr, cl, cmngr, &config.Router{}, parser.NewQParser())
 
 	ph := relay.NewSimpleProtoStateHandler(cmngr)
 
@@ -45,7 +46,7 @@ func TestTxSimpleRollback(t *testing.T) {
 	cl := mockcl.NewMockRouterClient(ctrl)
 	qr := mockqr.NewMockQueryRouter(ctrl)
 
-	rst := relay.NewRelayState(qr, cl, cmngr, &config.Router{})
+	rst := relay.NewRelayState(qr, cl, cmngr, &config.Router{}, parser.NewQParser())
 
 	ph := relay.NewSimpleProtoStateHandler(cmngr)
 
diff --git a/router/relay/qstate.go b/router/relay/qstate.go
index 3787dc9ff..0c8e7426a 100644
--- a/router/relay/qstate.go
+++ b/router/relay/qstate.go
@@ -78,7 +78,7 @@ func deparseRouteHint(rst RelayStateMgr, params map[string]string) (routehint.Ro
 func ProcQueryAdvanced(rst RelayStateMgr, query string, ph ProtoStateHandler, binderQ func() error, doCaching bool) error {
 	statistics.RecordStartTime(statistics.Router, time.Now(), rst.Client().ID())
 
-	spqrlog.Zero.Debug().Str("query", query).Uint("client", spqrlog.GetPointer(rst.Client())).Msgf("process relay state advanced")
+	spqrlog.Zero.Debug().Str("query", query).Uint("client", rst.Client().ID()).Msgf("process relay state advanced")
 	state, comment, err := rst.Parse(query, doCaching)
 	if err != nil {
 		return fmt.Errorf("error processing query '%v': %w", query, err)
diff --git a/router/relay/relay.go b/router/relay/relay.go
index 396991a3c..5c475d166 100644
--- a/router/relay/relay.go
+++ b/router/relay/relay.go
@@ -136,7 +136,7 @@ type RelayStateImpl struct {
 	routingState routingstate.RoutingState
 
 	Qr      qrouter.QueryRouter
-	qp      parser.QParser
+	qp      parser.Parser
 	plainQ  string
 	Cl      client.RouterClient
 	manager poolmgr.PoolMgr
@@ -176,13 +176,14 @@ func (rst *RelayStateImpl) RequestData() {
 	rst.Cl.Server().RequestData()
 }
 
-func NewRelayState(qr qrouter.QueryRouter, client client.RouterClient, manager poolmgr.PoolMgr, rcfg *config.Router) RelayStateMgr {
+func NewRelayState(qr qrouter.QueryRouter, client client.RouterClient, manager poolmgr.PoolMgr, rcfg *config.Router, parser parser.Parser) RelayStateMgr {
 	return &RelayStateImpl{
 		activeShards:       nil,
 		txStatus:           txstatus.TXIDLE,
 		msgBuf:             nil,
 		traceMsgs:          false,
 		Qr:                 qr,
+		qp:                 parser,
 		Cl:                 client,
 		manager:            manager,
 		WorldShardFallback: rcfg.WorldShardFallback,