feat: create table through GRPC interface (#224)

* feat: create table through GRPC interface

* move `CreateExpr` `oneof` expr of `AdminExpr` in `admin.proto`, and implement the admin GRPC interface

* add `table_options` and `partition_options` to `CreateExpr`

* resolve code review comments

Co-authored-by: luofucong <luofucong@greptime.com>

src/api/greptime/v1/admin.proto

@@ -2,8 +2,40 @@ syntax = "proto3";
 
 package greptime.v1;
 
-// TODO(jiachun)
-message AdminRequest {}
+import "greptime/v1/column.proto";
+import "greptime/v1/common.proto";
 
-// TODO(jiachun)
-message AdminResponse {}
+message AdminRequest {
+  string name = 1;
+  repeated AdminExpr exprs = 2;
+}
+
+message AdminResponse {
+  repeated AdminResult results = 1;
+}
+
+message AdminExpr {
+  ExprHeader header = 1;
+  oneof expr {
+    CreateExpr create = 2;
+  }
+}
+
+message AdminResult {
+  ResultHeader header = 1;
+  oneof result {
+    MutateResult mutate = 2;
+  }
+}
+
+message CreateExpr {
+  optional string catalog_name = 1;
+  optional string schema_name = 2;
+  string table_name = 3;
+  optional string desc = 4;
+  repeated ColumnDef column_defs = 5;
+  string time_index = 6;
+  repeated string primary_keys = 7;
+  bool create_if_not_exists = 8;
+  map<string, string> table_options = 9;
+}

src/api/greptime/v1/column.proto

@@ -44,3 +44,27 @@ message Column {
   // If a bit in null_mask is 1, it indicates that the column value at that position is null.
   bytes null_mask = 4;
 }
+
+message ColumnDef {
+  string name = 1;
+  ColumnDataType data_type = 2;
+  bool is_nullable = 3;
+}
+
+enum ColumnDataType {
+  BOOLEAN = 0;
+  INT8 = 1;
+  INT16 = 2;
+  INT32 = 3;
+  INT64 = 4;
+  UINT8 = 5;
+  UINT16 = 6;
+  UINT32 = 7;
+  UINT64 = 8;
+  FLOAT32 = 9;
+  FLOAT64 = 10;
+  BINARY = 11;
+  STRING = 12;
+  DATE = 13;
+  DATETIME = 14;
+}

src/api/greptime/v1/common.proto

@@ -0,0 +1,18 @@
+syntax = "proto3";
+
+package greptime.v1;
+
+message ExprHeader {
+  uint32 version = 1;
+}
+
+message ResultHeader {
+  uint32 version = 1;
+  uint32 code = 2;
+  string err_msg = 3;
+}
+
+message MutateResult {
+  uint32 success = 1;
+  uint32 failure = 2;
+}

src/api/greptime/v1/database.proto

@@ -2,6 +2,8 @@ syntax = "proto3";
 
 package greptime.v1;
 
+import "greptime/v1/common.proto";
+
 message DatabaseRequest {
   string name = 1;
   repeated ObjectExpr exprs = 2;
@@ -21,10 +23,6 @@ message ObjectExpr {
   }
 }
 
-message ExprHeader {
-  uint32 version = 1;
-}
-
 // TODO(fys): Only support sql now, and will support promql etc in the future
 message SelectExpr {
   oneof expr {
@@ -59,14 +57,3 @@ message ObjectResult {
 message SelectResult {
   bytes raw_data = 1;
 }
-
-message ResultHeader {
-  uint32 version = 1;
-  uint32 code = 2;
-  string err_msg = 3;
-}
-
-message MutateResult {
-  uint32 success = 1;
-  uint32 failure = 2;
-}