Super helpful! Thanks.I'll try to take a look at this tonight. If not then, over the weekend, likely. Will report back.
F21 wrote:
Hey Josh, Here's what I am doing: Create the table: CREATE TABLE test ( int INTEGER PRIMARY KEY, bin VARBINARY) TRANSACTIONAL=false Download the binary file we want to insert from here: https://raw.githubusercontent.com/golang-samples/gopher-vector/master/gopher.png Prepare the statement: UPSERT INTO test VALUES (?, ?) Here's the code I am using to execute the statement: // read the file into a byte array []byte file, _ := ioutil.ReadFile(filePath) // create array of typed values containing the parameters parameters := []*message.TypedValue{ &message.TypedValue{ Type: message.Rep_LONG, NumberValue: 1, }, &message.TypedValue{ Type: message.Rep_BYTE_STRING, BytesValues: file, }, } // create message: msg := &message.ExecuteRequest{ StatementHandle: &s.handle, // this is just the statement handle ParameterValues: parameters, MaxRowCount: 100, HasParameterValues: true, } // encode the message: wrapped, _ := proto.Marshal(message) // wrap it in the wire message: wire := &message.WireMessage{ Name: " org.apache.calcite.avatica.proto.Requests$ ExecuteRequest", WrappedMessage: wrapped, } // encode wire message and send over http: body, _ := proto.Marshal(wire) response, _ := ctxhttp.Post(context.Background(), httpClient, avaticaServer, "application/x-google-protobuf", bytes.NewReader(body)) Let me know if there's more information I can provide or if something's unclear :) On 15/04/2016 2:46 AM, Josh Elser wrote:Yeah, that sounds right to me too. I think we have a test for random bytes. Maybe there's something weird happening under the hood in the Avatica JDBC driver that isn't obvious to you in the Go driver. Any chance you can share some example code you're running? I can try to convert it to a Java test case, maybe help track down your issue. F21 wrote:I also tried casting the data to a string and setting it to StringValue and the Rep type to STRING. This works when I store and retrieve strings from the binary column, but doesn't work correctly if I try to store something like a small image. On 14/04/2016 5:03 PM, Julian Hyde wrote:BytesValue sounds right. I’m not sure why it isn’t working for you.On Apr 14, 2016, at 6:34 AM, F21 <[email protected]> wrote: As mentioned on the list, I am currently working on a golang client/driver for avatica using protobufs for serialization. I've got all datatypes working, except for BINARY and VARBINARY. For my test table looks like this: CREATE TABLE test (int INTEGER PRIMARY KEY, bin BINARY(20), varbin VARBINARY) TRANSACTIONAL=false In go, we have a datatype called a slice of bytes ([]byte) which is essentially an array of bytes (8-bits each). When I generated the golang protobufs using the .proto files, this is the definition of TypedValue: type TypedValue struct { Type Rep `protobuf:"varint,1,opt,name=type,enum=Rep" json:"type,omitempty"` BoolValue bool `protobuf:"varint,2,opt,name=bool_value,json=boolValue" json:"bool_value,omitempty"` StringValue string `protobuf:"bytes,3,opt,name=string_value,json=stringValue" json:"string_value,omitempty"` NumberValue int64 `protobuf:"zigzag64,4,opt,name=number_value,json=numberValue" json:"number_value,omitempty"` BytesValues []byte `protobuf:"bytes,5,opt,name=bytes_values,json=bytesValues,proto3" json:"bytes_values,omitempty"` DoubleValue float64 `protobuf:"fixed64,6,opt,name=double_value,json=doubleValue" json:"double_value,omitempty"` Null bool `protobuf:"varint,7,opt,name=null" json:"null,omitempty"` } I am currently creating a TypedValue that looks like this when sending binary data: {BYTE_STRING false 0 [116 101 115 116] 0 false} So, the Rep is set to BYTE_STRING and ByteValues is populated with the string "test" in bytes (it's shown here as decimal because I printed it). The problem is that even though the insert executes properly, if I look at the row using SquirrelSQL, both the BINARY and VARBINARY columns are <null>. Is BYTE_STRING the correct rep type for sending binary data? Do I also have to encode my bytes in a special format? Thanks!
