[skywalking-banyandb] 01/04: Add measure API

[ha...@apache.org]

This is an automated email from the ASF dual-hosted git repository.

hanahmily pushed a commit to branch go-1.17
in repository https://gitbox.apache.org/repos/asf/skywalking-banyandb.git

commit da55a538653a0d1e53d0ca084ec74f478fb64bc5
Author: Gao Hongtao <ha...@gmail.com>
AuthorDate: Sun Oct 10 21:24:03 2021 +0800

    Add measure API
    
    Signed-off-by: Gao Hongtao <ha...@gmail.com>
---
 api/proto/banyandb/database/v1/schema.proto | 47 +++++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/api/proto/banyandb/database/v1/schema.proto b/api/proto/banyandb/database/v1/schema.proto
index e80f3d5..350997a 100644
--- a/api/proto/banyandb/database/v1/schema.proto
+++ b/api/proto/banyandb/database/v1/schema.proto
@@ -77,6 +77,53 @@ message Entity {
     repeated string tag_names = 1;
 }
 
+enum DataType {
+    DATA_TYPE_UNSPECIFIED = 0;
+    DATA_TYPE_STRING = 1;
+    DATA_TYPE_INT = 2;
+    DATA_TYPE_DATA_BINARY = 3;
+}
+
+enum EncodingMethod {
+    ENCODING_METHOD_UNSPECIFIED = 0;
+    ENCODING_METHOD_GORILLA = 1;
+}
+
+enum CompressionMethod {
+    COMPRESSION_METHOD_UNSPECIFIED = 0;
+    COMPRESSION_METHOD_ZSTD = 1;
+}
+
+// FieldSpec is the specification of field
+message FieldSpec {
+    // name is the identity of a field
+    string name = 1;
+    // data_type denotes the type of field value
+    DataType data_type = 2;
+    // encoding_method indicates how to encode data during writing
+    EncodingMethod encoding_method = 3;
+    // compression_method indicates how to compress data during writing
+    CompressionMethod compression_method = 4;
+}
+
+// Measure intends to store data point
+message Measure {
+    // metadata is the identity of a measure
+    common.v1.Metadata metadata = 1;
+    // tag_families are for filter measures
+    repeated TagFamilySpec tag_families = 2;
+    // fields denote measure values
+    repeated FieldSpec fields = 3;
+    // entity indicates which tags will be to generate a series and shard a measure
+    Entity entity = 4;
+    // shard_num is the number of shards
+    uint32 shard_num = 5;
+    // ttl indicates time to live, how long the data will be cached
+    Duration ttl = 6;
+    // updated_at_nanoseconds indicates when the measure is updated
+    google.protobuf.Timestamp updated_at_nanoseconds = 7;
+}
+
 // IndexRule defines how to generate indices based on tags and the index type
 // IndexRule should bind to a subject through an IndexRuleBinding to generate proper indices.
 message IndexRule {