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Add back missing ProtobufList docs

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Justin de Guzman 2024-05-15 13:45:18 -07:00 committed by GitHub
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docs/en/interfaces/formats.md
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@ -67,6 +67,7 @@ The supported formats are:
| [Prometheus](#prometheus) | ✗ | ✔ |
| [Protobuf](#protobuf) | ✔ | ✔ |
| [ProtobufSingle](#protobufsingle) | ✔ | ✔ |
| [ProtobufList](#protobuflist) | ✔ | ✔ |
| [Avro](#data-format-avro) | ✔ | ✔ |
| [AvroConfluent](#data-format-avro-confluent) | ✔ | ✗ |
| [Parquet](#data-format-parquet) | ✔ | ✔ |
@ -1945,6 +1946,35 @@ SYSTEM DROP FORMAT SCHEMA CACHE FOR Protobuf
Same as [Protobuf](#protobuf) but for storing/parsing single Protobuf message without length delimiters.
## ProtobufList {#protobuflist}
Similar to Protobuf but rows are represented as a sequence of sub-messages contained in a message with fixed name "Envelope".
Usage example:
``` sql
SELECT * FROM test.table FORMAT ProtobufList SETTINGS format_schema = 'schemafile:MessageType'
```
``` bash
cat protobuflist_messages.bin | clickhouse-client --query "INSERT INTO test.table FORMAT ProtobufList SETTINGS format_schema='schemafile:MessageType'"
```
where the file `schemafile.proto` looks like this:
``` capnp
syntax = "proto3";
message Envelope {
message MessageType {
string name = 1;
string surname = 2;
uint32 birthDate = 3;
repeated string phoneNumbers = 4;
};
MessageType row = 1;
};
```
## Avro {#data-format-avro}
[Apache Avro](https://avro.apache.org/) is a row-oriented data serialization framework developed within Apache’s Hadoop project.