Deprecated use of sharding rule proto & service (#518)

Author: EinKrebs

pkg/protos/sharding_rules.pb.go

@@ -5,16 +5,16 @@ package spqr;
 option go_package = "spqr/proto";
 
 message ShardingRuleEntry {
-  string column = 2;
-  string hashFunction = 3;
+  string column = 2 [deprecated = true];
+  string hashFunction = 3 [deprecated = true];
 }
 
 
 message ShardingRule {
-  string id = 1;
-  string tableName = 2;
-  repeated ShardingRuleEntry ShardingRuleEntry = 3;
-  string distributionId = 4;
+  string id = 1 [deprecated = true]; 
+  string tableName = 2 [deprecated = true];
+  repeated ShardingRuleEntry ShardingRuleEntry = 3 [deprecated = true];
+  string distributionId = 4 [deprecated = true];
 }
 
 message AddShardingRuleRequest {
@@ -38,7 +38,13 @@ message DropShardingRuleRequest {
 message DropShardingRuleReply {}
 
 service ShardingRulesService {
-  rpc AddShardingRules(AddShardingRuleRequest) returns (AddShardingRuleReply) {}
-  rpc DropShardingRules(DropShardingRuleRequest) returns (DropShardingRuleReply) {}
-  rpc ListShardingRules(ListShardingRuleRequest) returns (ListShardingRuleReply) {}
+  rpc AddShardingRules(AddShardingRuleRequest) returns (AddShardingRuleReply) {
+      option deprecated = true;
+  }
+  rpc DropShardingRules(DropShardingRuleRequest) returns (DropShardingRuleReply) {
+    option deprecated = true;
+  }
+  rpc ListShardingRules(ListShardingRuleRequest) returns (ListShardingRuleReply) {
+    option deprecated = true;
+  }
 }