add time ranges to truncate table expr

Signed-off-by: discord9 <discord9@163.com>

Author: discord9

proto/greptime/v1/common.proto

@@ -163,6 +163,17 @@ enum TimeUnit {
   NANOSECOND = 3;
 }
 
+message TimeRange {
+  int64 start = 1;
+  int64 end = 2;
+}
+
+/// Truncate partially by time ranges
+message TimeRanges {
+  TimeUnit time_unit = 1;
+  repeated TimeRange time_ranges = 2;
+}
+
 // (hi: high 64 bits, lo: low 64 bits) are used to keep the decimal128 value.
 message Decimal128 {
   int64 hi = 1;

proto/greptime/v1/ddl.proto

@@ -177,6 +177,8 @@ message TruncateTableExpr {
   string schema_name = 2;
   string table_name = 3;
   TableId table_id = 4;
+  // if empty, truncate entire table, else only truncate time ranges
+  TimeRanges time_ranges = 5;
 }
 
 message DropDatabaseExpr {

proto/greptime/v1/region/server.proto

@@ -224,17 +224,6 @@ message TruncateRequest {
 /// Truncate all data in region
 message All {}
 
-/// Truncate partially by time ranges
-message TimeRanges {
-  TimeUnit time_unit = 1;
-  repeated TimeRange time_ranges = 2;
-}
-
-message TimeRange {
-  int64 start = 1;
-  int64 end = 2;
-}
-
 
 // The column definition of a region. Unlike the message `ColumnDef` in
 // `ddl.proto` which is for clients outside GreptimeDB, this `RegionColumnDef`