/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

option java_package = "org.apache.tajo.catalog.proto";
option java_outer_classname = "CatalogProtos";
option optimize_for = SPEED;
option java_generic_services = false;
option java_generate_equals_and_hash = true;

import "DataTypes.proto";
import "PrimitiveProtos.proto";

enum StoreType {
  MEM = 0;
  CSV = 1;
  RAW = 2;
  RCFILE = 3;
  ROWFILE = 4;
  HCFILE = 5;
  TREVNI = 6;
  PARQUET = 7;
  SEQUENCEFILE = 8;
  AVRO = 9;
}

enum OrderType {
  ORDER_NONE = 0;
  ASC = 1;
  DSC = 2;
}

enum PartitionType {
  RANGE = 0;
  HASH = 1;
  LIST = 2;
  COLUMN = 3;
}

enum AlterTableType {
  RENAME_TABLE = 0;
  RENAME_COLUMN = 1;
  ADD_COLUMN = 2;
}

message ColumnProto {
  required string name = 1;
  required DataType dataType = 3;
}

message SchemaProto {
  repeated ColumnProto fields = 1;
}

message FragmentProto {
  required string id = 1;
  required bytes contents = 2;
}

message FileFragmentProto {
  required string id = 1;
  required string path = 2;
  required int64 startOffset = 3;
  required int64 length = 4;
  repeated string hosts = 7;
  repeated int32 diskIds = 8;
}

message TableProto {
  required StoreType storeType = 1;
  optional KeyValueSetProto params = 2;
}

message CreateTablespaceRequest {
  required string tablespace_name = 1;
  required string tablespace_uri = 2;
}

message CreateDatabaseRequest {
  required string database_name = 1;
  optional string tablespace_name = 2;
}

message TableDescProto {
  required string table_name = 2;
  optional string path = 3;
  required TableProto meta = 4;
  required SchemaProto schema = 5;
  optional TableStatsProto stats = 6;
  optional PartitionMethodProto partition = 7;
  optional bool isExternal = 8 [default = false];
}

message TableIdentifierProto {
  required string database_name = 1;
  required string table_name = 3;
}

message NamespaceProto {
  required string database_name = 1;
  optional string namespace = 2;
}

enum FunctionType {
  GENERAL = 0;
  AGGREGATION = 1;
  DISTINCT_AGGREGATION = 2;
  WINDOW = 3;
  UDF = 4;
  UDA = 5;
  DISTINCT_UDA = 6;
  WINDOW_UDA = 7;
}

message FunctionDescProto {
  required string signature = 1;
  required string className = 2;
  required FunctionType type = 3;
  repeated DataType parameterTypes = 4;
  required DataType returnType = 5;
  optional string description = 6;
  optional string example = 7;
  optional string detail = 8;
}

message IndexDescProto {
  required TableIdentifierProto tableIdentifier = 1;
  required string indexName = 2;
  required ColumnProto column = 3;
  required IndexMethod indexMethod = 4;
  optional bool isUnique = 5 [default = false];
  optional bool isClustered = 6 [default = false];
  optional bool isAscending = 7 [default = false];
}

enum IndexMethod {
  TWO_LEVEL_BIN_TREE = 0;
  BTREE_IDX = 1;
  HASH_IDX = 2;
  BITMAP_IDX = 3;
}

message GetAllTableNamesResponse {
  repeated string tableName = 1;
}

message GetIndexByColumnRequest {
  required TableIdentifierProto tableIdentifier = 1;
  required string columnName = 2;
}

message IndexNameProto {
  required string databaseName = 1;
  optional string namespace = 2;
  required string indexName = 3;
}

message GetFunctionsResponse {
  repeated FunctionDescProto functionDesc = 1;
}

message UnregisterFunctionRequest {
  required string signature = 1;
}

message GetFunctionMetaRequest {
  required string signature = 1;
  optional FunctionType functionType = 2;
  repeated DataType parameterTypes = 3;
}

message ContainFunctionRequest {
  required string signature = 1;
  optional FunctionType functionType = 2;
  repeated DataType parameterTypes = 3;
}

message TableStatsProto {
  required int64 numRows = 1;
  required int64 numBytes = 2;
  optional int32 numBlocks = 4;
  optional int32 numShuffleOutputs = 5;
  optional int64 avgRows = 6;
  optional int64 readBytes = 7;
  repeated ColumnStatsProto colStat = 8;
}

message ColumnStatsProto {
  required ColumnProto column = 1;
  optional int64 numDistVal = 2;
  optional int64 numNulls = 3;
  optional bytes minValue = 4;
  optional bytes maxValue = 5;
}

enum StatType {
  TABLE_NUM_ROWS = 0;
  TABLE_NUM_BLOCKS = 1;
  TABLE_NUM_PARTITIONS = 2;
  TABLE_AVG_ROWS = 3;
  TABLE_NUM_BYTES = 4;

  COLUMN_NUM_NDV = 5;
  COLUMN_NUM_NULLS = 6;
}

message StatSetProto {
  repeated StatProto stats = 1;
}

message StatProto {
  required StatType type = 1;
  required int64 value = 2;
}

message ServerNameProto {
  required string serverName = 1;
  required string hostName = 2;
  required int32 port = 3;
}

message TupleComparatorSpecProto {
  required int32 columnId = 1;
  optional bool ascending = 2 [default = true];
  optional bool nullFirst = 3 [default = false];
}

message SortSpecProto {
  required ColumnProto column = 1;
  optional bool ascending = 2 [default = true];
  optional bool nullFirst = 3 [default = false];
}


message PartitionsProto {
  required TableIdentifierProto tableIdentifier = 1;
  repeated PartitionDescProto partition = 2;
}

message PartitionMethodProto {
  required TableIdentifierProto tableIdentifier = 1;
  required PartitionType partitionType = 2;
  required string expression = 3;
  required SchemaProto expressionSchema = 4;
}

message PartitionDescProto {
  optional string partitionName = 2;
  required int32  ordinalPosition = 3;
  optional string partitionValue = 4;
  optional string path = 5;
}

message TablespaceProto {
  required string spaceName = 1;
  required string uri = 2;
}

message AlterTablespaceProto {
  required string spaceName = 1;
  repeated AlterTablespaceCommand command = 2;

  enum AlterTablespaceType {
    LOCATION = 0;
  }

  message SetLocation {
    required string uri = 1;
  }

  message AlterTablespaceCommand {
    required AlterTablespaceType type = 1;
    optional SetLocation location = 2;
  }
}

message AlterTableDescProto {
  required string tableName = 1;
  optional string newTableName = 2 ;
  optional ColumnProto addColumn = 3;
  optional AlterColumnProto alterColumnName = 4;
  required AlterTableType alterTableType = 5;
}

message AlterColumnProto {
  required string oldColumnName = 1;
  required string newColumnName = 2;
}