// BeginExecute starts a transaction and runs an Execute.
func (conn *gRPCQueryClient) BeginExecute(ctx context.Context, target *querypb.Target, query string, bindVars map[string]interface{}, options *querypb.ExecuteOptions) (result *sqltypes.Result, transactionID int64, err error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, 0, tabletconn.ConnClosed
}
q, err := querytypes.BoundQueryToProto3(query, bindVars)
if err != nil {
return nil, 0, err
}
if *combo {
// If combo is enabled, we combine both calls
req := &querypb.BeginExecuteRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Query: q,
Options: options,
}
reply, err := conn.c.BeginExecute(ctx, req)
if err != nil {
return nil, 0, tabletconn.TabletErrorFromGRPC(err)
}
if reply.Error != nil {
return nil, reply.TransactionId, tabletconn.TabletErrorFromRPCError(reply.Error)
}
return sqltypes.Proto3ToResult(reply.Result), reply.TransactionId, nil
}
// Begin part.
breq := &querypb.BeginRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
}
br, err := conn.c.Begin(ctx, breq)
if err != nil {
return nil, 0, tabletconn.TabletErrorFromGRPC(err)
}
transactionID = br.TransactionId
// Execute part.
ereq := &querypb.ExecuteRequest{
Target: target,
EffectiveCallerId: breq.EffectiveCallerId,
ImmediateCallerId: breq.ImmediateCallerId,
Query: q,
TransactionId: transactionID,
Options: options,
}
er, err := conn.c.Execute(ctx, ereq)
if err != nil {
return nil, transactionID, tabletconn.TabletErrorFromGRPC(err)
}
return sqltypes.Proto3ToResult(er.Result), transactionID, nil
}
// ExecuteBatch sends a batch query to VTTablet.
func (conn *gRPCQueryClient) ExecuteBatch(ctx context.Context, target *querypb.Target, queries []querytypes.BoundQuery, asTransaction bool, transactionID int64, options *querypb.ExecuteOptions) ([]sqltypes.Result, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, tabletconn.ConnClosed
}
req := &querypb.ExecuteBatchRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Queries: make([]*querypb.BoundQuery, len(queries)),
AsTransaction: asTransaction,
TransactionId: transactionID,
Options: options,
}
for i, q := range queries {
qq, err := querytypes.BoundQueryToProto3(q.Sql, q.BindVariables)
if err != nil {
return nil, err
}
req.Queries[i] = qq
}
ebr, err := conn.c.ExecuteBatch(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return sqltypes.Proto3ToResults(ebr.Results), nil
}
// SplitQuery is the stub for TabletServer.SplitQuery RPC
// TODO(erez): Remove this method and rename SplitQueryV2 to SplitQuery once
// the migration to SplitQuery V2 is done.
func (conn *gRPCQueryClient) SplitQuery(ctx context.Context, target *querypb.Target, query querytypes.BoundQuery, splitColumn string, splitCount int64) (queries []querytypes.QuerySplit, err error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
err = tabletconn.ConnClosed
return
}
q, err := querytypes.BoundQueryToProto3(query.Sql, query.BindVariables)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
req := &querypb.SplitQueryRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Query: q,
SplitColumn: []string{splitColumn},
SplitCount: splitCount,
NumRowsPerQueryPart: 0,
Algorithm: querypb.SplitQueryRequest_EQUAL_SPLITS,
UseSplitQueryV2: false,
}
sqr, err := conn.c.SplitQuery(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
split, err := querytypes.Proto3ToQuerySplits(sqr.Queries)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return split, nil
}
func (f *FakeQueryService) checkSessionTargetCallerID(ctx context.Context, name string, target *querypb.Target, sessionID int64) {
if f.checkTarget {
if !reflect.DeepEqual(target, testTarget) {
f.t.Errorf("invalid Target for %v: got %#v expected %#v", name, target, testTarget)
}
} else {
if sessionID != testSessionID {
f.t.Errorf("invalid sessionID for %v: got %v expected %v", name, sessionID, testSessionID)
}
}
ef := callerid.EffectiveCallerIDFromContext(ctx)
if ef == nil {
f.t.Errorf("no effective caller id for %v", name)
} else {
if !reflect.DeepEqual(ef, testCallerID) {
f.t.Errorf("invalid effective caller id for %v: got %v expected %v", name, ef, testCallerID)
}
}
im := callerid.ImmediateCallerIDFromContext(ctx)
if im == nil {
f.t.Errorf("no immediate caller id for %v", name)
} else {
if !reflect.DeepEqual(im, testVTGateCallerID) {
f.t.Errorf("invalid immediate caller id for %v: got %v expected %v", name, im, testVTGateCallerID)
}
}
}
// Execute sends the query to VTTablet.
func (conn *gRPCQueryClient) Execute(ctx context.Context, query string, bindVars map[string]interface{}, transactionID int64) (*sqltypes.Result, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, tabletconn.ConnClosed
}
q, err := tproto.BoundQueryToProto3(query, bindVars)
if err != nil {
return nil, err
}
req := &pb.ExecuteRequest{
Target: conn.target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Query: q,
TransactionId: transactionID,
SessionId: conn.sessionID,
}
er, err := conn.c.Execute(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return sqltypes.Proto3ToResult(er.Result), nil
}
// SplitQuery is the stub for TabletServer.SplitQuery RPC
func (conn *gRPCQueryClient) SplitQuery(ctx context.Context, query tproto.BoundQuery, splitColumn string, splitCount int) (queries []tproto.QuerySplit, err error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
err = tabletconn.ConnClosed
return
}
q, err := tproto.BoundQueryToProto3(query.Sql, query.BindVariables)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
req := &pb.SplitQueryRequest{
Target: conn.target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Query: q,
SplitColumn: splitColumn,
SplitCount: int64(splitCount),
SessionId: conn.sessionID,
}
sqr, err := conn.c.SplitQuery(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
split, err := tproto.Proto3ToQuerySplits(sqr.Queries)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return split, nil
}
// ExecuteBatch sends a batch query to VTTablet.
func (conn *gRPCQueryClient) ExecuteBatch(ctx context.Context, queries []tproto.BoundQuery, asTransaction bool, transactionID int64) (*tproto.QueryResultList, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, tabletconn.ConnClosed
}
req := &pb.ExecuteBatchRequest{
Target: conn.target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Queries: make([]*pb.BoundQuery, len(queries)),
AsTransaction: asTransaction,
TransactionId: transactionID,
SessionId: conn.sessionID,
}
for i, q := range queries {
req.Queries[i] = tproto.BoundQueryToProto3(q.Sql, q.BindVariables)
}
ebr, err := conn.c.ExecuteBatch(ctx, req)
if err != nil {
return nil, tabletErrorFromGRPC(err)
}
return tproto.Proto3ToQueryResultList(ebr.Results), nil
}
// Begin begins a transaction, and returns the associated transaction id.
// Subsequent statements can access the connection through the transaction id.
func (axp *TxPool) Begin(ctx context.Context) int64 {
poolCtx := ctx
if deadline, ok := ctx.Deadline(); ok {
var cancel func()
poolCtx, cancel = context.WithDeadline(ctx, deadline.Add(-10*time.Millisecond))
defer cancel()
}
conn, err := axp.pool.Get(poolCtx)
if err != nil {
switch err {
case ErrConnPoolClosed:
panic(err)
case pools.ErrTimeout:
axp.LogActive()
panic(NewTabletError(ErrTxPoolFull, vtrpcpb.ErrorCode_RESOURCE_EXHAUSTED, "Transaction pool connection limit exceeded"))
}
panic(NewTabletErrorSQL(ErrFatal, vtrpcpb.ErrorCode_INTERNAL_ERROR, err))
}
if _, err := conn.Exec(ctx, "begin", 1, false); err != nil {
conn.Recycle()
panic(NewTabletErrorSQL(ErrFail, vtrpcpb.ErrorCode_UNKNOWN_ERROR, err))
}
transactionID := axp.lastID.Add(1)
axp.activePool.Register(
transactionID,
newTxConnection(
conn,
transactionID,
axp,
callerid.ImmediateCallerIDFromContext(ctx),
callerid.EffectiveCallerIDFromContext(ctx),
),
)
return transactionID
}
func addUserTableQueryStats(queryServiceStats *QueryServiceStats, ctx context.Context, tableName string, queryType string, duration int64) {
username := callerid.GetPrincipal(callerid.EffectiveCallerIDFromContext(ctx))
if username == "" {
username = callerid.GetUsername(callerid.ImmediateCallerIDFromContext(ctx))
}
queryServiceStats.UserTableQueryCount.Add([]string{tableName, username, queryType}, 1)
queryServiceStats.UserTableQueryTimesNs.Add([]string{tableName, username, queryType}, int64(duration))
}
func getImmediateCallerID(ctx context.Context) *tproto.VTGateCallerID {
if im := callerid.ImmediateCallerIDFromContext(ctx); im != nil {
return &tproto.VTGateCallerID{
Username: im.Username,
}
}
return nil
}
// StreamExecute starts a streaming query to VTTablet.
func (conn *gRPCQueryClient) StreamExecute(ctx context.Context, query string, bindVars map[string]interface{}, transactionID int64) (<-chan *sqltypes.Result, tabletconn.ErrFunc, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, nil, tabletconn.ConnClosed
}
q, err := querytypes.BoundQueryToProto3(query, bindVars)
if err != nil {
return nil, nil, err
}
req := &querypb.StreamExecuteRequest{
Target: conn.target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Query: q,
SessionId: conn.sessionID,
}
stream, err := conn.c.StreamExecute(ctx, req)
if err != nil {
return nil, nil, tabletconn.TabletErrorFromGRPC(err)
}
sr := make(chan *sqltypes.Result, 10)
var finalError error
go func() {
var fields []*querypb.Field
for {
ser, err := stream.Recv()
if err != nil {
if err != io.EOF {
finalError = tabletconn.TabletErrorFromGRPC(err)
}
close(sr)
return
}
if fields == nil {
fields = ser.Result.Fields
}
sr <- sqltypes.CustomProto3ToResult(fields, ser.Result)
}
}()
return sr, func() error {
return finalError
}, nil
}
// Begin starts a transaction.
func (conn *gRPCQueryClient) Begin(ctx context.Context, target *querypb.Target) (transactionID int64, err error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return 0, tabletconn.ConnClosed
}
req := &querypb.BeginRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
}
br, err := conn.c.Begin(ctx, req)
if err != nil {
return 0, tabletconn.TabletErrorFromGRPC(err)
}
return br.TransactionId, nil
}
// ReadTransaction returns the metadata for the sepcified dtid.
func (conn *gRPCQueryClient) ReadTransaction(ctx context.Context, target *querypb.Target, dtid string) (*querypb.TransactionMetadata, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, tabletconn.ConnClosed
}
req := &querypb.ReadTransactionRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Dtid: dtid,
}
response, err := conn.c.ReadTransaction(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return response.Metadata, nil
}
// CommitPrepared commits the prepared transaction.
func (conn *gRPCQueryClient) CommitPrepared(ctx context.Context, target *querypb.Target, dtid string) error {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return tabletconn.ConnClosed
}
req := &querypb.CommitPreparedRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Dtid: dtid,
}
_, err := conn.c.CommitPrepared(ctx, req)
if err != nil {
return tabletconn.TabletErrorFromGRPC(err)
}
return nil
}
// Rollback rolls back the ongoing transaction.
func (conn *gRPCQueryClient) Rollback(ctx context.Context, target *querypb.Target, transactionID int64) error {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return tabletconn.ConnClosed
}
req := &querypb.RollbackRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
TransactionId: transactionID,
}
_, err := conn.c.Rollback(ctx, req)
if err != nil {
return tabletconn.TabletErrorFromGRPC(err)
}
return nil
}
// CreateTransaction creates the metadata for a 2PC transaction.
func (conn *gRPCQueryClient) CreateTransaction(ctx context.Context, target *querypb.Target, dtid string, participants []*querypb.Target) error {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return tabletconn.ConnClosed
}
req := &querypb.CreateTransactionRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Dtid: dtid,
Participants: participants,
}
_, err := conn.c.CreateTransaction(ctx, req)
if err != nil {
return tabletconn.TabletErrorFromGRPC(err)
}
return nil
}
// UpdateStream starts a streaming query to VTTablet.
func (conn *gRPCQueryClient) UpdateStream(ctx context.Context, target *querypb.Target, position string, timestamp int64) (tabletconn.StreamEventReader, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, tabletconn.ConnClosed
}
req := &querypb.UpdateStreamRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Position: position,
Timestamp: timestamp,
}
stream, err := conn.c.UpdateStream(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return &updateStreamAdapter{stream: stream}, err
}
// StreamExecute starts a streaming query to VTTablet.
func (conn *gRPCQueryClient) StreamExecute(ctx context.Context, query string, bindVars map[string]interface{}) (sqltypes.ResultStream, error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, tabletconn.ConnClosed
}
q, err := querytypes.BoundQueryToProto3(query, bindVars)
if err != nil {
return nil, err
}
req := &querypb.StreamExecuteRequest{
Target: conn.target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Query: q,
}
stream, err := conn.c.StreamExecute(ctx, req)
if err != nil {
return nil, tabletconn.TabletErrorFromGRPC(err)
}
return &streamExecuteAdapter{stream: stream}, err
}
// RunTests performs the necessary testsuite for CallerID operations
func RunTests(t *testing.T, im *querypb.VTGateCallerID, ef *vtrpcpb.CallerID, newContext func(context.Context, *vtrpcpb.CallerID, *querypb.VTGateCallerID) context.Context) {
ctx := context.TODO()
ctxim := callerid.ImmediateCallerIDFromContext(ctx)
// For Contexts without immediate CallerID, ImmediateCallerIDFromContext should fail
if ctxim != nil {
t.Errorf("Expect nil from ImmediateCallerIDFromContext, but got %v", ctxim)
}
// For Contexts without effective CallerID, EffectiveCallerIDFromContext should fail
ctxef := callerid.EffectiveCallerIDFromContext(ctx)
if ctxef != nil {
t.Errorf("Expect nil from EffectiveCallerIDFromContext, but got %v", ctxef)
}
ctx = newContext(ctx, nil, nil)
ctxim = callerid.ImmediateCallerIDFromContext(ctx)
// For Contexts with nil immediate CallerID, ImmediateCallerIDFromContext should fail
if ctxim != nil {
t.Errorf("Expect nil from ImmediateCallerIDFromContext, but got %v", ctxim)
}
// For Contexts with nil effective CallerID, EffectiveCallerIDFromContext should fail
ctxef = callerid.EffectiveCallerIDFromContext(ctx)
if ctxef != nil {
t.Errorf("Expect nil from EffectiveCallerIDFromContext, but got %v", ctxef)
}
// Test GetXxx on nil receivers, should get all empty strings
if u := callerid.GetUsername(ctxim); u != "" {
t.Errorf("Expect empty string from GetUsername(nil), but got %v", u)
}
if p := callerid.GetPrincipal(ctxef); p != "" {
t.Errorf("Expect empty string from GetPrincipal(nil), but got %v", p)
}
if c := callerid.GetComponent(ctxef); c != "" {
t.Errorf("Expect empty string from GetComponent(nil), but got %v", c)
}
if s := callerid.GetSubcomponent(ctxef); s != "" {
t.Errorf("Expect empty string from GetSubcomponent(nil), but got %v", s)
}
ctx = newContext(ctx, ef, im)
ctxim = callerid.ImmediateCallerIDFromContext(ctx)
// retrieved immediate CallerID should be equal to the one we put into Context
if !reflect.DeepEqual(ctxim, im) {
t.Errorf("Expect %v from ImmediateCallerIDFromContext, but got %v", im, ctxim)
}
if u := callerid.GetUsername(im); u != FakeUsername {
t.Errorf("Expect %v from GetUsername(im), but got %v", FakeUsername, u)
}
ctxef = callerid.EffectiveCallerIDFromContext(ctx)
// retrieved effective CallerID should be equal to the one we put into Context
if !reflect.DeepEqual(ctxef, ef) {
t.Errorf("Expect %v from EffectiveCallerIDFromContext, but got %v", ef, ctxef)
}
if p := callerid.GetPrincipal(ef); p != FakePrincipal {
t.Errorf("Expect %v from GetPrincipal(ef), but got %v", FakePrincipal, p)
}
if c := callerid.GetComponent(ef); c != FakeComponent {
t.Errorf("Expect %v from GetComponent(ef), but got %v", FakeComponent, c)
}
if s := callerid.GetSubcomponent(ef); s != FakeSubcomponent {
t.Errorf("Expect %v from GetSubcomponent(ef), but got %v", FakeSubcomponent, s)
}
}
// checkPermissions
func (qre *QueryExecutor) checkPermissions() error {
// Skip permissions check if we have a background context.
if qre.ctx == context.Background() {
return nil
}
// Blacklist
remoteAddr := ""
username := ""
ci, ok := callinfo.FromContext(qre.ctx)
if ok {
remoteAddr = ci.RemoteAddr()
username = ci.Username()
}
action, desc := qre.plan.Rules.getAction(remoteAddr, username, qre.bindVars)
switch action {
case QR_FAIL:
return NewTabletError(ErrFail, vtrpc.ErrorCode_BAD_INPUT, "Query disallowed due to rule: %s", desc)
case QR_FAIL_RETRY:
return NewTabletError(ErrRetry, vtrpc.ErrorCode_QUERY_NOT_SERVED, "Query disallowed due to rule: %s", desc)
}
callerID := callerid.ImmediateCallerIDFromContext(qre.ctx)
if callerID == nil {
if qre.qe.strictTableAcl {
return NewTabletError(ErrFail, vtrpc.ErrorCode_UNAUTHENTICATED, "missing caller id")
}
return nil
}
// a superuser that exempts from table ACL checking.
if qre.qe.exemptACL == callerID.Username {
qre.qe.tableaclExemptCount.Add(1)
return nil
}
// empty table name, do not need a table ACL check.
if qre.plan.TableName == "" {
return nil
}
if qre.plan.Authorized == nil {
return NewTabletError(ErrFail, vtrpc.ErrorCode_PERMISSION_DENIED, "table acl error: nil acl")
}
tableACLStatsKey := []string{
qre.plan.TableName,
qre.plan.Authorized.GroupName,
qre.plan.PlanId.String(),
callerID.Username,
}
// perform table ACL check if it is enabled.
if !qre.plan.Authorized.IsMember(callerID.Username) {
if qre.qe.enableTableAclDryRun {
qre.qe.tableaclPseudoDenied.Add(tableACLStatsKey, 1)
return nil
}
// raise error if in strictTableAcl mode, else just log an error.
if qre.qe.strictTableAcl {
errStr := fmt.Sprintf("table acl error: %q cannot run %v on table %q", callerID.Username, qre.plan.PlanId, qre.plan.TableName)
qre.qe.tableaclDenied.Add(tableACLStatsKey, 1)
qre.qe.accessCheckerLogger.Errorf("%s", errStr)
return NewTabletError(ErrFail, vtrpc.ErrorCode_PERMISSION_DENIED, "%s", errStr)
}
return nil
}
qre.qe.tableaclAllowed.Add(tableACLStatsKey, 1)
return nil
}
// BeginExecuteBatch starts a transaction and runs an ExecuteBatch.
func (conn *gRPCQueryClient) BeginExecuteBatch(ctx context.Context, target *querypb.Target, queries []querytypes.BoundQuery, asTransaction bool, options *querypb.ExecuteOptions) (results []sqltypes.Result, transactionID int64, err error) {
conn.mu.RLock()
defer conn.mu.RUnlock()
if conn.cc == nil {
return nil, 0, tabletconn.ConnClosed
}
if *combo {
// If combo is enabled, we combine both calls
req := &querypb.BeginExecuteBatchRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
Queries: make([]*querypb.BoundQuery, len(queries)),
AsTransaction: asTransaction,
Options: options,
}
for i, q := range queries {
qq, err := querytypes.BoundQueryToProto3(q.Sql, q.BindVariables)
if err != nil {
return nil, transactionID, err
}
req.Queries[i] = qq
}
reply, err := conn.c.BeginExecuteBatch(ctx, req)
if err != nil {
return nil, 0, tabletconn.TabletErrorFromGRPC(err)
}
if reply.Error != nil {
return nil, reply.TransactionId, tabletconn.TabletErrorFromRPCError(reply.Error)
}
return sqltypes.Proto3ToResults(reply.Results), reply.TransactionId, nil
}
breq := &querypb.BeginRequest{
Target: target,
EffectiveCallerId: callerid.EffectiveCallerIDFromContext(ctx),
ImmediateCallerId: callerid.ImmediateCallerIDFromContext(ctx),
}
br, err := conn.c.Begin(ctx, breq)
if err != nil {
return nil, 0, tabletconn.TabletErrorFromGRPC(err)
}
transactionID = br.TransactionId
ereq := &querypb.ExecuteBatchRequest{
Target: target,
EffectiveCallerId: breq.EffectiveCallerId,
ImmediateCallerId: breq.ImmediateCallerId,
Queries: make([]*querypb.BoundQuery, len(queries)),
AsTransaction: asTransaction,
TransactionId: transactionID,
Options: options,
}
for i, q := range queries {
qq, err := querytypes.BoundQueryToProto3(q.Sql, q.BindVariables)
if err != nil {
return nil, transactionID, err
}
ereq.Queries[i] = qq
}
ebr, err := conn.c.ExecuteBatch(ctx, ereq)
if err != nil {
return nil, transactionID, tabletconn.TabletErrorFromGRPC(err)
}
return sqltypes.Proto3ToResults(ebr.Results), transactionID, nil
}
// ImmediateCaller returns the immediate caller stored in LogStats.ctx
func (stats *LogStats) ImmediateCaller() string {
return callerid.GetUsername(callerid.ImmediateCallerIDFromContext(stats.ctx))
}