mirror of
https://github.com/rqlite/rqlite.git
synced 2026-01-25 04:16:26 +00:00
Basic preupdate hook support at DB level
This commit is contained in:
Philip O'Toole
@@ -1,6 +1,6 @@
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// Code generated by protoc-gen-go. DO NOT EDIT.
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// versions:
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// protoc-gen-go v1.36.1
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// protoc-gen-go v1.36.2
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// protoc v3.6.1
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// source: message.proto
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@@ -1,6 +1,6 @@
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// Code generated by protoc-gen-go. DO NOT EDIT.
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// versions:
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// protoc-gen-go v1.36.1
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// protoc-gen-go v1.36.2
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// protoc v3.6.1
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// source: command.proto
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@@ -188,6 +188,58 @@ func (Command_Type) EnumDescriptor() ([]byte, []int) {
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return file_command_proto_rawDescGZIP(), []int{17, 0}
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}
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type CDCEvent_Operation int32
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const (
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CDCEvent_UNKNOWN CDCEvent_Operation = 0
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CDCEvent_INSERT CDCEvent_Operation = 1
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CDCEvent_UPDATE CDCEvent_Operation = 2
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CDCEvent_DELETE CDCEvent_Operation = 3
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)
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// Enum value maps for CDCEvent_Operation.
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var (
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CDCEvent_Operation_name = map[int32]string{
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0: "UNKNOWN",
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1: "INSERT",
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2: "UPDATE",
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3: "DELETE",
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}
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CDCEvent_Operation_value = map[string]int32{
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"UNKNOWN": 0,
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"INSERT": 1,
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"UPDATE": 2,
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"DELETE": 3,
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}
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)
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func (x CDCEvent_Operation) Enum() *CDCEvent_Operation {
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p := new(CDCEvent_Operation)
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*p = x
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return p
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}
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func (x CDCEvent_Operation) String() string {
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return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
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}
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func (CDCEvent_Operation) Descriptor() protoreflect.EnumDescriptor {
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return file_command_proto_enumTypes[3].Descriptor()
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}
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func (CDCEvent_Operation) Type() protoreflect.EnumType {
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return &file_command_proto_enumTypes[3]
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}
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func (x CDCEvent_Operation) Number() protoreflect.EnumNumber {
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return protoreflect.EnumNumber(x)
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}
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// Deprecated: Use CDCEvent_Operation.Descriptor instead.
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func (CDCEvent_Operation) EnumDescriptor() ([]byte, []int) {
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return file_command_proto_rawDescGZIP(), []int{20, 0}
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}
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type Parameter struct {
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state protoimpl.MessageState `protogen:"open.v1"`
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// Types that are valid to be assigned to Value:
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@@ -1392,6 +1444,272 @@ func (x *Command) GetCompressed() bool {
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return false
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}
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type CDCValue struct {
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state protoimpl.MessageState `protogen:"open.v1"`
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// Types that are valid to be assigned to Value:
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//
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// *CDCValue_I
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// *CDCValue_D
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// *CDCValue_B
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// *CDCValue_Y
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// *CDCValue_S
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Value isCDCValue_Value `protobuf_oneof:"value"`
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unknownFields protoimpl.UnknownFields
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sizeCache protoimpl.SizeCache
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}
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func (x *CDCValue) Reset() {
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*x = CDCValue{}
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mi := &file_command_proto_msgTypes[18]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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func (x *CDCValue) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*CDCValue) ProtoMessage() {}
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func (x *CDCValue) ProtoReflect() protoreflect.Message {
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mi := &file_command_proto_msgTypes[18]
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if x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use CDCValue.ProtoReflect.Descriptor instead.
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func (*CDCValue) Descriptor() ([]byte, []int) {
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return file_command_proto_rawDescGZIP(), []int{18}
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}
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func (x *CDCValue) GetValue() isCDCValue_Value {
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if x != nil {
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return x.Value
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}
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return nil
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}
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func (x *CDCValue) GetI() int64 {
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if x != nil {
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if x, ok := x.Value.(*CDCValue_I); ok {
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return x.I
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}
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}
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return 0
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}
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func (x *CDCValue) GetD() float64 {
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if x != nil {
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if x, ok := x.Value.(*CDCValue_D); ok {
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return x.D
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}
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}
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return 0
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}
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func (x *CDCValue) GetB() bool {
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if x != nil {
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if x, ok := x.Value.(*CDCValue_B); ok {
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return x.B
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}
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}
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return false
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}
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func (x *CDCValue) GetY() []byte {
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if x != nil {
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if x, ok := x.Value.(*CDCValue_Y); ok {
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return x.Y
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}
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}
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return nil
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}
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func (x *CDCValue) GetS() string {
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if x != nil {
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if x, ok := x.Value.(*CDCValue_S); ok {
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return x.S
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}
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}
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return ""
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}
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type isCDCValue_Value interface {
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isCDCValue_Value()
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}
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type CDCValue_I struct {
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I int64 `protobuf:"zigzag64,1,opt,name=i,proto3,oneof"`
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}
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type CDCValue_D struct {
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D float64 `protobuf:"fixed64,2,opt,name=d,proto3,oneof"`
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}
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type CDCValue_B struct {
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B bool `protobuf:"varint,3,opt,name=b,proto3,oneof"`
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}
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type CDCValue_Y struct {
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Y []byte `protobuf:"bytes,4,opt,name=y,proto3,oneof"`
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}
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type CDCValue_S struct {
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S string `protobuf:"bytes,5,opt,name=s,proto3,oneof"`
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}
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func (*CDCValue_I) isCDCValue_Value() {}
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func (*CDCValue_D) isCDCValue_Value() {}
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func (*CDCValue_B) isCDCValue_Value() {}
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func (*CDCValue_Y) isCDCValue_Value() {}
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func (*CDCValue_S) isCDCValue_Value() {}
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type CDCRow struct {
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state protoimpl.MessageState `protogen:"open.v1"`
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Values []*CDCValue `protobuf:"bytes,1,rep,name=values,proto3" json:"values,omitempty"`
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unknownFields protoimpl.UnknownFields
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sizeCache protoimpl.SizeCache
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}
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func (x *CDCRow) Reset() {
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*x = CDCRow{}
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mi := &file_command_proto_msgTypes[19]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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func (x *CDCRow) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*CDCRow) ProtoMessage() {}
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func (x *CDCRow) ProtoReflect() protoreflect.Message {
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mi := &file_command_proto_msgTypes[19]
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if x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use CDCRow.ProtoReflect.Descriptor instead.
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func (*CDCRow) Descriptor() ([]byte, []int) {
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return file_command_proto_rawDescGZIP(), []int{19}
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}
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func (x *CDCRow) GetValues() []*CDCValue {
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if x != nil {
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return x.Values
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}
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return nil
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}
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type CDCEvent struct {
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state protoimpl.MessageState `protogen:"open.v1"`
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Error string `protobuf:"bytes,1,opt,name=error,proto3" json:"error,omitempty"`
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Op CDCEvent_Operation `protobuf:"varint,2,opt,name=op,proto3,enum=command.CDCEvent_Operation" json:"op,omitempty"`
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Table string `protobuf:"bytes,3,opt,name=table,proto3" json:"table,omitempty"`
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OldRowId int64 `protobuf:"varint,4,opt,name=old_row_id,json=oldRowId,proto3" json:"old_row_id,omitempty"`
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NewRowId int64 `protobuf:"varint,5,opt,name=new_row_id,json=newRowId,proto3" json:"new_row_id,omitempty"`
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OldRow *CDCRow `protobuf:"bytes,6,opt,name=old_row,json=oldRow,proto3" json:"old_row,omitempty"`
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NewRow *CDCRow `protobuf:"bytes,7,opt,name=new_row,json=newRow,proto3" json:"new_row,omitempty"`
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unknownFields protoimpl.UnknownFields
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sizeCache protoimpl.SizeCache
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}
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func (x *CDCEvent) Reset() {
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*x = CDCEvent{}
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mi := &file_command_proto_msgTypes[20]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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func (x *CDCEvent) String() string {
|
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return protoimpl.X.MessageStringOf(x)
|
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}
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func (*CDCEvent) ProtoMessage() {}
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||||
|
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func (x *CDCEvent) ProtoReflect() protoreflect.Message {
|
||||
mi := &file_command_proto_msgTypes[20]
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if x != nil {
|
||||
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
|
||||
if ms.LoadMessageInfo() == nil {
|
||||
ms.StoreMessageInfo(mi)
|
||||
}
|
||||
return ms
|
||||
}
|
||||
return mi.MessageOf(x)
|
||||
}
|
||||
|
||||
// Deprecated: Use CDCEvent.ProtoReflect.Descriptor instead.
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func (*CDCEvent) Descriptor() ([]byte, []int) {
|
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return file_command_proto_rawDescGZIP(), []int{20}
|
||||
}
|
||||
|
||||
func (x *CDCEvent) GetError() string {
|
||||
if x != nil {
|
||||
return x.Error
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||||
}
|
||||
return ""
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||||
}
|
||||
|
||||
func (x *CDCEvent) GetOp() CDCEvent_Operation {
|
||||
if x != nil {
|
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return x.Op
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}
|
||||
return CDCEvent_UNKNOWN
|
||||
}
|
||||
|
||||
func (x *CDCEvent) GetTable() string {
|
||||
if x != nil {
|
||||
return x.Table
|
||||
}
|
||||
return ""
|
||||
}
|
||||
|
||||
func (x *CDCEvent) GetOldRowId() int64 {
|
||||
if x != nil {
|
||||
return x.OldRowId
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (x *CDCEvent) GetNewRowId() int64 {
|
||||
if x != nil {
|
||||
return x.NewRowId
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
func (x *CDCEvent) GetOldRow() *CDCRow {
|
||||
if x != nil {
|
||||
return x.OldRow
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
func (x *CDCEvent) GetNewRow() *CDCRow {
|
||||
if x != nil {
|
||||
return x.NewRow
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
var File_command_proto protoreflect.FileDescriptor
|
||||
|
||||
var file_command_proto_rawDesc = []byte{
|
||||
@@ -1556,10 +1874,39 @@ var file_command_proto_rawDesc = []byte{
|
||||
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|
||||
0x6e, 0x12, 0x0b, 0x0a, 0x07, 0x55, 0x4e, 0x4b, 0x4e, 0x4f, 0x57, 0x4e, 0x10, 0x00, 0x12, 0x0a,
|
||||
0x0a, 0x06, 0x49, 0x4e, 0x53, 0x45, 0x52, 0x54, 0x10, 0x01, 0x12, 0x0a, 0x0a, 0x06, 0x55, 0x50,
|
||||
0x44, 0x41, 0x54, 0x45, 0x10, 0x02, 0x12, 0x0a, 0x0a, 0x06, 0x44, 0x45, 0x4c, 0x45, 0x54, 0x45,
|
||||
0x10, 0x03, 0x42, 0x2b, 0x5a, 0x29, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d,
|
||||
0x2f, 0x72, 0x71, 0x6c, 0x69, 0x74, 0x65, 0x2f, 0x72, 0x71, 0x6c, 0x69, 0x74, 0x65, 0x2f, 0x76,
|
||||
0x38, 0x2f, 0x63, 0x6f, 0x6d, 0x6d, 0x61, 0x6e, 0x64, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62,
|
||||
0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
|
||||
}
|
||||
|
||||
var (
|
||||
@@ -1574,50 +1921,58 @@ func file_command_proto_rawDescGZIP() []byte {
|
||||
return file_command_proto_rawDescData
|
||||
}
|
||||
|
||||
var file_command_proto_enumTypes = make([]protoimpl.EnumInfo, 3)
|
||||
var file_command_proto_msgTypes = make([]protoimpl.MessageInfo, 18)
|
||||
var file_command_proto_enumTypes = make([]protoimpl.EnumInfo, 4)
|
||||
var file_command_proto_msgTypes = make([]protoimpl.MessageInfo, 21)
|
||||
var file_command_proto_goTypes = []any{
|
||||
(QueryRequest_Level)(0), // 0: command.QueryRequest.Level
|
||||
(BackupRequest_Format)(0), // 1: command.BackupRequest.Format
|
||||
(Command_Type)(0), // 2: command.Command.Type
|
||||
(*Parameter)(nil), // 3: command.Parameter
|
||||
(*Statement)(nil), // 4: command.Statement
|
||||
(*Request)(nil), // 5: command.Request
|
||||
(*QueryRequest)(nil), // 6: command.QueryRequest
|
||||
(*Values)(nil), // 7: command.Values
|
||||
(*QueryRows)(nil), // 8: command.QueryRows
|
||||
(*ExecuteRequest)(nil), // 9: command.ExecuteRequest
|
||||
(*ExecuteResult)(nil), // 10: command.ExecuteResult
|
||||
(*ExecuteQueryRequest)(nil), // 11: command.ExecuteQueryRequest
|
||||
(*ExecuteQueryResponse)(nil), // 12: command.ExecuteQueryResponse
|
||||
(*BackupRequest)(nil), // 13: command.BackupRequest
|
||||
(*LoadRequest)(nil), // 14: command.LoadRequest
|
||||
(*LoadChunkRequest)(nil), // 15: command.LoadChunkRequest
|
||||
(*JoinRequest)(nil), // 16: command.JoinRequest
|
||||
(*NotifyRequest)(nil), // 17: command.NotifyRequest
|
||||
(*RemoveNodeRequest)(nil), // 18: command.RemoveNodeRequest
|
||||
(*Noop)(nil), // 19: command.Noop
|
||||
(*Command)(nil), // 20: command.Command
|
||||
(CDCEvent_Operation)(0), // 3: command.CDCEvent.Operation
|
||||
(*Parameter)(nil), // 4: command.Parameter
|
||||
(*Statement)(nil), // 5: command.Statement
|
||||
(*Request)(nil), // 6: command.Request
|
||||
(*QueryRequest)(nil), // 7: command.QueryRequest
|
||||
(*Values)(nil), // 8: command.Values
|
||||
(*QueryRows)(nil), // 9: command.QueryRows
|
||||
(*ExecuteRequest)(nil), // 10: command.ExecuteRequest
|
||||
(*ExecuteResult)(nil), // 11: command.ExecuteResult
|
||||
(*ExecuteQueryRequest)(nil), // 12: command.ExecuteQueryRequest
|
||||
(*ExecuteQueryResponse)(nil), // 13: command.ExecuteQueryResponse
|
||||
(*BackupRequest)(nil), // 14: command.BackupRequest
|
||||
(*LoadRequest)(nil), // 15: command.LoadRequest
|
||||
(*LoadChunkRequest)(nil), // 16: command.LoadChunkRequest
|
||||
(*JoinRequest)(nil), // 17: command.JoinRequest
|
||||
(*NotifyRequest)(nil), // 18: command.NotifyRequest
|
||||
(*RemoveNodeRequest)(nil), // 19: command.RemoveNodeRequest
|
||||
(*Noop)(nil), // 20: command.Noop
|
||||
(*Command)(nil), // 21: command.Command
|
||||
(*CDCValue)(nil), // 22: command.CDCValue
|
||||
(*CDCRow)(nil), // 23: command.CDCRow
|
||||
(*CDCEvent)(nil), // 24: command.CDCEvent
|
||||
}
|
||||
var file_command_proto_depIdxs = []int32{
|
||||
3, // 0: command.Statement.parameters:type_name -> command.Parameter
|
||||
4, // 1: command.Request.statements:type_name -> command.Statement
|
||||
5, // 2: command.QueryRequest.request:type_name -> command.Request
|
||||
4, // 0: command.Statement.parameters:type_name -> command.Parameter
|
||||
5, // 1: command.Request.statements:type_name -> command.Statement
|
||||
6, // 2: command.QueryRequest.request:type_name -> command.Request
|
||||
0, // 3: command.QueryRequest.level:type_name -> command.QueryRequest.Level
|
||||
3, // 4: command.Values.parameters:type_name -> command.Parameter
|
||||
7, // 5: command.QueryRows.values:type_name -> command.Values
|
||||
5, // 6: command.ExecuteRequest.request:type_name -> command.Request
|
||||
5, // 7: command.ExecuteQueryRequest.request:type_name -> command.Request
|
||||
4, // 4: command.Values.parameters:type_name -> command.Parameter
|
||||
8, // 5: command.QueryRows.values:type_name -> command.Values
|
||||
6, // 6: command.ExecuteRequest.request:type_name -> command.Request
|
||||
6, // 7: command.ExecuteQueryRequest.request:type_name -> command.Request
|
||||
0, // 8: command.ExecuteQueryRequest.level:type_name -> command.QueryRequest.Level
|
||||
8, // 9: command.ExecuteQueryResponse.q:type_name -> command.QueryRows
|
||||
10, // 10: command.ExecuteQueryResponse.e:type_name -> command.ExecuteResult
|
||||
9, // 9: command.ExecuteQueryResponse.q:type_name -> command.QueryRows
|
||||
11, // 10: command.ExecuteQueryResponse.e:type_name -> command.ExecuteResult
|
||||
1, // 11: command.BackupRequest.format:type_name -> command.BackupRequest.Format
|
||||
2, // 12: command.Command.type:type_name -> command.Command.Type
|
||||
13, // [13:13] is the sub-list for method output_type
|
||||
13, // [13:13] is the sub-list for method input_type
|
||||
13, // [13:13] is the sub-list for extension type_name
|
||||
13, // [13:13] is the sub-list for extension extendee
|
||||
0, // [0:13] is the sub-list for field type_name
|
||||
22, // 13: command.CDCRow.values:type_name -> command.CDCValue
|
||||
3, // 14: command.CDCEvent.op:type_name -> command.CDCEvent.Operation
|
||||
23, // 15: command.CDCEvent.old_row:type_name -> command.CDCRow
|
||||
23, // 16: command.CDCEvent.new_row:type_name -> command.CDCRow
|
||||
17, // [17:17] is the sub-list for method output_type
|
||||
17, // [17:17] is the sub-list for method input_type
|
||||
17, // [17:17] is the sub-list for extension type_name
|
||||
17, // [17:17] is the sub-list for extension extendee
|
||||
0, // [0:17] is the sub-list for field type_name
|
||||
}
|
||||
|
||||
func init() { file_command_proto_init() }
|
||||
@@ -1637,13 +1992,20 @@ func file_command_proto_init() {
|
||||
(*ExecuteQueryResponse_E)(nil),
|
||||
(*ExecuteQueryResponse_Error)(nil),
|
||||
}
|
||||
file_command_proto_msgTypes[18].OneofWrappers = []any{
|
||||
(*CDCValue_I)(nil),
|
||||
(*CDCValue_D)(nil),
|
||||
(*CDCValue_B)(nil),
|
||||
(*CDCValue_Y)(nil),
|
||||
(*CDCValue_S)(nil),
|
||||
}
|
||||
type x struct{}
|
||||
out := protoimpl.TypeBuilder{
|
||||
File: protoimpl.DescBuilder{
|
||||
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
|
||||
RawDescriptor: file_command_proto_rawDesc,
|
||||
NumEnums: 3,
|
||||
NumMessages: 18,
|
||||
NumEnums: 4,
|
||||
NumMessages: 21,
|
||||
NumExtensions: 0,
|
||||
NumServices: 0,
|
||||
},
|
||||
|
||||
@@ -141,3 +141,33 @@ message Command {
|
||||
bytes sub_command = 2;
|
||||
bool compressed = 3;
|
||||
}
|
||||
|
||||
message CDCValue {
|
||||
oneof value {
|
||||
sint64 i = 1;
|
||||
double d = 2;
|
||||
bool b = 3;
|
||||
bytes y = 4;
|
||||
string s = 5;
|
||||
}
|
||||
}
|
||||
|
||||
message CDCRow {
|
||||
repeated CDCValue values = 1;
|
||||
}
|
||||
|
||||
message CDCEvent {
|
||||
enum Operation {
|
||||
UNKNOWN = 0;
|
||||
INSERT = 1;
|
||||
UPDATE = 2;
|
||||
DELETE = 3;
|
||||
}
|
||||
string error = 1;
|
||||
Operation op = 2;
|
||||
string table = 3;
|
||||
int64 old_row_id = 4;
|
||||
int64 new_row_id = 5;
|
||||
CDCRow old_row = 6;
|
||||
CDCRow new_row = 7;
|
||||
}
|
||||
|
||||
140
db/db.go
140
db/db.go
@@ -239,6 +239,78 @@ func OpenWithDriver(drv *Driver, dbPath string, fkEnabled, wal bool) (retDB *DB,
|
||||
}, nil
|
||||
}
|
||||
|
||||
// PreUpdateHookCallback is a callback function that is called before a row is modified
|
||||
// in the database.
|
||||
type PreUpdateHookCallback func(ev *command.CDCEvent)
|
||||
|
||||
// RegisterPreUpdateHook registers a callback that is called before a row is modified
|
||||
// in the database. If rowIDOnly is true, only the row ID details are passed to the
|
||||
// callback. If a callback is already registered, it is replaced. If hook is nil, the
|
||||
// callback is removed.
|
||||
func (db *DB) RegisterPreUpdateHook(hook PreUpdateHookCallback) error {
|
||||
var cb func(d sqlite3.SQLitePreUpdateData)
|
||||
if hook != nil {
|
||||
cb = func(d sqlite3.SQLitePreUpdateData) {
|
||||
pb := &command.CDCEvent{
|
||||
Table: d.TableName,
|
||||
OldRowId: d.OldRowID,
|
||||
NewRowId: d.NewRowID,
|
||||
}
|
||||
switch d.Op {
|
||||
case sqlite3.SQLITE_INSERT:
|
||||
pb.Op = command.CDCEvent_INSERT
|
||||
case sqlite3.SQLITE_UPDATE:
|
||||
pb.Op = command.CDCEvent_UPDATE
|
||||
case sqlite3.SQLITE_DELETE:
|
||||
pb.Op = command.CDCEvent_DELETE
|
||||
default:
|
||||
pb.Error = fmt.Sprintf("unknown preupdate hook operation %d", d.Op)
|
||||
}
|
||||
c := d.Count()
|
||||
|
||||
oldRow := make([]any, c)
|
||||
if d.Op != sqlite3.SQLITE_INSERT {
|
||||
err := d.Old(oldRow...)
|
||||
if err != nil {
|
||||
pb.Error = fmt.Sprintf("failed to get old row data: %s", err.Error())
|
||||
}
|
||||
pb.OldRow, err = normalizeCDCValues(oldRow)
|
||||
if err != nil {
|
||||
pb.Error = fmt.Sprintf("failed to normalize old row data: %s", err.Error())
|
||||
}
|
||||
}
|
||||
|
||||
newRow := make([]any, c)
|
||||
if d.Op != sqlite3.SQLITE_DELETE {
|
||||
err := d.New(newRow...)
|
||||
if err != nil {
|
||||
pb.Error = fmt.Sprintf("failed to get new row data: %s", err.Error())
|
||||
}
|
||||
pb.NewRow, err = normalizeCDCValues(newRow)
|
||||
if err != nil {
|
||||
pb.Error = fmt.Sprintf("failed to normalize new row data: %s", err.Error())
|
||||
}
|
||||
}
|
||||
hook(pb)
|
||||
}
|
||||
}
|
||||
f := func(driverConn interface{}) error {
|
||||
conn := driverConn.(*sqlite3.SQLiteConn)
|
||||
conn.RegisterPreUpdateHook(cb)
|
||||
return nil
|
||||
}
|
||||
|
||||
conn, err := db.rwDB.Conn(context.Background())
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
defer conn.Close()
|
||||
if err := conn.Raw(f); err != nil {
|
||||
return err
|
||||
}
|
||||
return nil
|
||||
}
|
||||
|
||||
// LastModified returns the last modified time of the database file, or the WAL file,
|
||||
// whichever is most recent.
|
||||
func (db *DB) LastModified() (time.Time, error) {
|
||||
@@ -1544,6 +1616,74 @@ func normalizeRowParameters(row []interface{}, types []string) ([]*command.Param
|
||||
return values, nil
|
||||
}
|
||||
|
||||
func normalizeCDCValues(row []any) (*command.CDCRow, error) {
|
||||
cdcRow := &command.CDCRow{
|
||||
Values: make([]*command.CDCValue, len(row)),
|
||||
}
|
||||
for i, v := range row {
|
||||
switch val := v.(type) {
|
||||
case int:
|
||||
cdcRow.Values[i] = &command.CDCValue{
|
||||
Value: &command.CDCValue_I{
|
||||
I: int64(val)},
|
||||
}
|
||||
case int64:
|
||||
cdcRow.Values[i] = &command.CDCValue{
|
||||
Value: &command.CDCValue_I{
|
||||
I: val,
|
||||
},
|
||||
}
|
||||
case float64:
|
||||
cdcRow.Values[i] = &command.CDCValue{
|
||||
Value: &command.CDCValue_D{
|
||||
D: val,
|
||||
},
|
||||
}
|
||||
case bool:
|
||||
cdcRow.Values[i] = &command.CDCValue{
|
||||
Value: &command.CDCValue_B{
|
||||
B: val,
|
||||
},
|
||||
}
|
||||
case string:
|
||||
cdcRow.Values[i] = &command.CDCValue{
|
||||
Value: &command.CDCValue_S{
|
||||
S: val,
|
||||
},
|
||||
}
|
||||
case []byte:
|
||||
if true {
|
||||
cdcRow.Values[i] = &command.CDCValue{
|
||||
Value: &command.CDCValue_S{
|
||||
S: string(val),
|
||||
},
|
||||
}
|
||||
} else {
|
||||
cdcRow.Values[i] = &command.CDCValue{
|
||||
Value: &command.CDCValue_Y{
|
||||
Y: val,
|
||||
},
|
||||
}
|
||||
}
|
||||
case time.Time:
|
||||
rfc3339, err := val.MarshalText()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
cdcRow.Values[i] = &command.CDCValue{
|
||||
Value: &command.CDCValue_S{
|
||||
S: string(rfc3339),
|
||||
},
|
||||
}
|
||||
case nil:
|
||||
continue
|
||||
default:
|
||||
return nil, fmt.Errorf("unhandled column type: %T %v", val, val)
|
||||
}
|
||||
}
|
||||
return cdcRow, nil
|
||||
}
|
||||
|
||||
// isTextType returns whether the given type has a SQLite text affinity.
|
||||
// http://www.sqlite.org/datatype3.html
|
||||
func isTextType(t string) bool {
|
||||
|
||||
258
db/db_preupdate_test.go
Normal file
258
db/db_preupdate_test.go
Normal file
@@ -0,0 +1,258 @@
|
||||
package db
|
||||
|
||||
import (
|
||||
"os"
|
||||
"sync"
|
||||
"sync/atomic"
|
||||
"testing"
|
||||
|
||||
command "github.com/rqlite/rqlite/v8/command/proto"
|
||||
)
|
||||
|
||||
// Test_Preupdate_Basic tests the basic functionality of the preupdate hook, ensuring
|
||||
// it is triggered for inserts, updates, and deletes, and not triggered for selects,
|
||||
// executes that don't change anything, and when unregistered.
|
||||
func Test_Preupdate_Basic(t *testing.T) {
|
||||
path := mustTempPath()
|
||||
defer os.Remove(path)
|
||||
db, err := Open(path, false, false)
|
||||
if err != nil {
|
||||
t.Fatalf("error opening database")
|
||||
}
|
||||
defer db.Close()
|
||||
mustExecute(db, "CREATE TABLE foo (id INTEGER PRIMARY KEY, name TEXT)")
|
||||
|
||||
count := &atomic.Int32{}
|
||||
hook := func(ev *command.CDCEvent) {
|
||||
count.Add(1)
|
||||
}
|
||||
if err := db.RegisterPreUpdateHook(hook); err != nil {
|
||||
t.Fatalf("error registering preupdate hook")
|
||||
}
|
||||
|
||||
// A select should not trigger the hook and a basic insert should trigger the hook.
|
||||
mustQuery(db, "SELECT * FROM foo")
|
||||
mustExecute(db, "INSERT INTO foo(name) VALUES('fiona')")
|
||||
if count.Load() != 1 {
|
||||
t.Fatalf("expected count 1, got %d", count.Load())
|
||||
}
|
||||
|
||||
// An update should trigger the hook, and an update that doesn't change anything
|
||||
// should not trigger the hook.
|
||||
mustExecute(db, "UPDATE foo SET name='fiona2' WHERE id=5")
|
||||
mustExecute(db, "UPDATE foo SET name='fiona2' WHERE id=1")
|
||||
if count.Load() != 2 {
|
||||
t.Fatalf("expected count 2, got %d", count.Load())
|
||||
}
|
||||
|
||||
// A delete should trigger the hook.
|
||||
mustExecute(db, "DELETE FROM foo WHERE id=1")
|
||||
if count.Load() != 3 {
|
||||
t.Fatalf("expected count 3, got %d", count.Load())
|
||||
}
|
||||
|
||||
// Insert 5 rows, make sure the hook is triggered 5 times.
|
||||
for i := 0; i < 5; i++ {
|
||||
mustExecute(db, "INSERT INTO foo(name) VALUES('fiona')")
|
||||
}
|
||||
if count.Load() != 8 {
|
||||
t.Fatalf("expected count 8, got %d", count.Load())
|
||||
}
|
||||
|
||||
// Delete all rows, make sure the hook is triggered 5 times.
|
||||
r := mustQuery(db, "SELECT COUNT(*) FROM foo")
|
||||
if exp, got := int64(5), r[0].Values[0].Parameters[0].GetI(); exp != got {
|
||||
t.Fatalf("expected count %d, got %d", exp, got)
|
||||
}
|
||||
mustExecute(db, "DELETE FROM foo")
|
||||
if count.Load() != 13 {
|
||||
t.Fatalf("expected count 13, got %d", count.Load())
|
||||
}
|
||||
|
||||
// Unregister the hook, insert a row, and make sure the hook is not triggered.
|
||||
if err := db.RegisterPreUpdateHook(nil); err != nil {
|
||||
t.Fatalf("error unregistering preupdate hook")
|
||||
}
|
||||
mustExecute(db, "INSERT INTO foo(name) VALUES('fiona')")
|
||||
if count.Load() != 13 {
|
||||
t.Fatalf("expected count 8, got %d", count.Load())
|
||||
}
|
||||
}
|
||||
|
||||
// Test_Preupdate_Constraint tests that the preupdate hook is not triggered for
|
||||
// inserts that violate a constraint.
|
||||
func Test_Preupdate_Constraint(t *testing.T) {
|
||||
path := mustTempPath()
|
||||
defer os.Remove(path)
|
||||
db, err := Open(path, false, false)
|
||||
if err != nil {
|
||||
t.Fatalf("error opening database")
|
||||
}
|
||||
defer db.Close()
|
||||
mustExecute(db, "CREATE TABLE foo (id INTEGER PRIMARY KEY, name TEXT UNIQUE)")
|
||||
|
||||
count := &atomic.Int32{}
|
||||
hook := func(ev *command.CDCEvent) {
|
||||
count.Add(1)
|
||||
}
|
||||
if err := db.RegisterPreUpdateHook(hook); err != nil {
|
||||
t.Fatalf("error registering preupdate hook")
|
||||
}
|
||||
|
||||
// Insert a row, with an explicit ID.
|
||||
mustExecute(db, "INSERT INTO foo(id, name) VALUES(5, 'fiona')")
|
||||
if count.Load() != 1 {
|
||||
t.Fatalf("expected count 1, got %d", count.Load())
|
||||
}
|
||||
|
||||
// Insert a row with the same ID, should not trigger the hook.
|
||||
r, err := db.ExecuteStringStmt("INSERT INTO foo(id, name) VALUES(5, 'fiona2')")
|
||||
if err == nil && r[0].GetError() == "" {
|
||||
t.Fatalf("expected error, got nil")
|
||||
}
|
||||
if count.Load() != 1 {
|
||||
t.Fatalf("expected count 1, got %d", count.Load())
|
||||
}
|
||||
|
||||
// Ensure the hook is not triggered for a INSERT that violates a unique constraint.
|
||||
r, err = db.ExecuteStringStmt("INSERT INTO foo(id, name) VALUES(6, 'fiona')")
|
||||
if err == nil && r[0].GetError() == "" {
|
||||
t.Fatalf("expected error, got nil")
|
||||
}
|
||||
if count.Load() != 1 {
|
||||
t.Fatalf("expected count 1, got %d", count.Load())
|
||||
}
|
||||
}
|
||||
|
||||
func Test_Preupdate_Data(t *testing.T) {
|
||||
path := mustTempPath()
|
||||
defer os.Remove(path)
|
||||
db, err := Open(path, false, false)
|
||||
if err != nil {
|
||||
t.Fatalf("error opening database")
|
||||
}
|
||||
defer db.Close()
|
||||
mustExecute(db, "CREATE TABLE foo (id INTEGER PRIMARY KEY, name TEXT UNIQUE, age float)")
|
||||
|
||||
// Insert a row, with an explicit ID.
|
||||
var wg sync.WaitGroup
|
||||
hook := func(ev *command.CDCEvent) {
|
||||
defer wg.Done()
|
||||
if ev.Table != "foo" {
|
||||
t.Fatalf("expected table foo, got %s", ev.Table)
|
||||
}
|
||||
if ev.Op != command.CDCEvent_INSERT {
|
||||
t.Fatalf("expected operation insert, got %s", ev.Op)
|
||||
}
|
||||
|
||||
if ev.OldRow != nil {
|
||||
t.Fatalf("expected no old row")
|
||||
}
|
||||
if ev.NewRow == nil {
|
||||
t.Fatalf("expected new row")
|
||||
}
|
||||
if len(ev.NewRow.Values) != 3 {
|
||||
t.Fatalf("expected 3 values, got %d", len(ev.NewRow.Values))
|
||||
}
|
||||
if exp, got := int64(5), ev.NewRow.Values[0].GetI(); exp != got {
|
||||
t.Fatalf("expected id %d, got %d", exp, got)
|
||||
}
|
||||
if exp, got := "fiona", ev.NewRow.Values[1].GetS(); exp != got {
|
||||
t.Fatalf("expected name %s, got %s", exp, got)
|
||||
}
|
||||
if exp, got := 2.4, ev.NewRow.Values[2].GetD(); exp != got {
|
||||
t.Fatalf("expected age %f, got %f", exp, got)
|
||||
}
|
||||
}
|
||||
if err := db.RegisterPreUpdateHook(hook); err != nil {
|
||||
t.Fatalf("error registering preupdate hook")
|
||||
}
|
||||
wg.Add(1)
|
||||
mustExecute(db, "INSERT INTO foo(id, name, age) VALUES(5, 'fiona', 2.4)")
|
||||
wg.Wait()
|
||||
|
||||
// Update a row.
|
||||
hook = func(ev *command.CDCEvent) {
|
||||
defer wg.Done()
|
||||
if ev.Table != "foo" {
|
||||
t.Fatalf("expected table foo, got %s", ev.Table)
|
||||
}
|
||||
if ev.Op != command.CDCEvent_UPDATE {
|
||||
t.Fatalf("expected operation update, got %s", ev.Op)
|
||||
}
|
||||
|
||||
if ev.OldRow == nil {
|
||||
t.Fatalf("expected old row")
|
||||
}
|
||||
if len(ev.OldRow.Values) != 3 {
|
||||
t.Fatalf("expected 3 values, got %d", len(ev.OldRow.Values))
|
||||
}
|
||||
if exp, got := int64(5), ev.OldRow.Values[0].GetI(); exp != got {
|
||||
t.Fatalf("expected id %d, got %d", exp, got)
|
||||
}
|
||||
if exp, got := "fiona", ev.OldRow.Values[1].GetS(); exp != got {
|
||||
t.Fatalf("expected name %s, got %s", exp, got)
|
||||
}
|
||||
if exp, got := 2.4, ev.OldRow.Values[2].GetD(); exp != got {
|
||||
t.Fatalf("expected age %f, got %f", exp, got)
|
||||
}
|
||||
|
||||
if ev.NewRow == nil {
|
||||
t.Fatalf("expected new row")
|
||||
}
|
||||
if len(ev.NewRow.Values) != 3 {
|
||||
t.Fatalf("expected 3 values, got %d", len(ev.NewRow.Values))
|
||||
}
|
||||
if exp, got := int64(5), ev.NewRow.Values[0].GetI(); exp != got {
|
||||
t.Fatalf("expected id %d, got %d", exp, got)
|
||||
}
|
||||
if exp, got := "fiona2", ev.NewRow.Values[1].GetS(); exp != got {
|
||||
t.Fatalf("expected name %s, got %s", exp, got)
|
||||
}
|
||||
if exp, got := 2.4, ev.NewRow.Values[2].GetD(); exp != got {
|
||||
t.Fatalf("expected age %f, got %f", exp, got)
|
||||
}
|
||||
}
|
||||
if err := db.RegisterPreUpdateHook(hook); err != nil {
|
||||
t.Fatalf("error registering preupdate hook")
|
||||
}
|
||||
wg.Add(1)
|
||||
mustExecute(db, "UPDATE foo SET name='fiona2' WHERE id=5")
|
||||
wg.Wait()
|
||||
|
||||
// Delete a row.
|
||||
hook = func(ev *command.CDCEvent) {
|
||||
defer wg.Done()
|
||||
if ev.Table != "foo" {
|
||||
t.Fatalf("expected table foo, got %s", ev.Table)
|
||||
}
|
||||
if ev.Op != command.CDCEvent_DELETE {
|
||||
t.Fatalf("expected operation delete, got %s", ev.Op)
|
||||
}
|
||||
|
||||
if ev.OldRow == nil {
|
||||
t.Fatalf("expected old row")
|
||||
}
|
||||
if len(ev.OldRow.Values) != 3 {
|
||||
t.Fatalf("expected 3 values, got %d", len(ev.OldRow.Values))
|
||||
}
|
||||
if exp, got := int64(5), ev.OldRow.Values[0].GetI(); exp != got {
|
||||
t.Fatalf("expected id %d, got %d", exp, got)
|
||||
}
|
||||
if exp, got := "fiona2", ev.OldRow.Values[1].GetS(); exp != got {
|
||||
t.Fatalf("expected name %s, got %s", exp, got)
|
||||
}
|
||||
if exp, got := 2.4, ev.OldRow.Values[2].GetD(); exp != got {
|
||||
t.Fatalf("expected age %f, got %f", exp, got)
|
||||
}
|
||||
if ev.NewRow != nil {
|
||||
t.Fatalf("expected no new row")
|
||||
}
|
||||
}
|
||||
if err := db.RegisterPreUpdateHook(hook); err != nil {
|
||||
t.Fatalf("error registering preupdate hook")
|
||||
}
|
||||
wg.Add(1)
|
||||
mustExecute(db, "DELETE FROM foo WHERE id=5")
|
||||
wg.Wait()
|
||||
}
|
||||
Reference in New Issue
Block a user