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- #!/usr/local/bin/thrift -java
- // Licensed to Cloudera, Inc. under one
- // or more contributor license agreements. See the NOTICE file
- // distributed with this work for additional information
- // regarding copyright ownership. Cloudera, Inc. 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.
- #
- # Thrift Service that the MetaStore is built on
- #
- include "fb303.thrift"
- namespace java org.apache.hadoop.hive.metastore.api
- namespace php metastore
- namespace cpp Apache.Hadoop.Hive
- const string DDL_TIME = "transient_lastDdlTime"
- struct Version {
- 1: string version,
- 2: string comments
- }
- struct FieldSchema {
- 1: string name, // name of the field
- 2: string type, // type of the field. primitive types defined above, specify list<TYPE_NAME>, map<TYPE_NAME, TYPE_NAME> for lists & maps
- 3: string comment
- }
- struct Type {
- 1: string name, // one of the types in PrimitiveTypes or CollectionTypes or User defined types
- 2: optional string type1, // object type if the name is 'list' (LIST_TYPE), key type if the name is 'map' (MAP_TYPE)
- 3: optional string type2, // val type if the name is 'map' (MAP_TYPE)
- 4: optional list<FieldSchema> fields // if the name is one of the user defined types
- }
- // namespace for tables
- struct Database {
- 1: string name,
- 2: string description,
- }
- // This object holds the information needed by SerDes
- struct SerDeInfo {
- 1: string name, // name of the serde, table name by default
- 2: string serializationLib, // usually the class that implements the extractor & loader
- 3: map<string, string> parameters // initialization parameters
- }
- // sort order of a column (column name along with asc(1)/desc(0))
- struct Order {
- 1: string col, // sort column name
- 2: i32 order // asc(1) or desc(0)
- }
- // this object holds all the information about physical storage of the data belonging to a table
- struct StorageDescriptor {
- 1: list<FieldSchema> cols, // required (refer to types defined above)
- 2: string location, // defaults to <warehouse loc>/<db loc>/tablename
- 3: string inputFormat, // SequenceFileInputFormat (binary) or TextInputFormat` or custom format
- 4: string outputFormat, // SequenceFileOutputFormat (binary) or IgnoreKeyTextOutputFormat or custom format
- 5: bool compressed, // compressed or not
- 6: i32 numBuckets, // this must be specified if there are any dimension columns
- 7: SerDeInfo serdeInfo, // serialization and deserialization information
- 8: list<string> bucketCols, // reducer grouping columns and clustering columns and bucketing columns`
- 9: list<Order> sortCols, // sort order of the data in each bucket
- 10: map<string, string> parameters // any user supplied key value hash
- }
- // table information
- struct Table {
- 1: string tableName, // name of the table
- 2: string dbName, // database name ('default')
- 3: string owner, // owner of this table
- 4: i32 createTime, // creation time of the table
- 5: i32 lastAccessTime, // last access time (usually this will be filled from HDFS and shouldn't be relied on)
- 6: i32 retention, // retention time
- 7: StorageDescriptor sd, // storage descriptor of the table
- 8: list<FieldSchema> partitionKeys, // partition keys of the table. only primitive types are supported
- 9: map<string, string> parameters // to store comments or any other user level parameters
- }
- struct Partition {
- 1: list<string> values // string value is converted to appropriate partition key type
- 2: string dbName,
- 3: string tableName,
- 4: i32 createTime,
- 5: i32 lastAccessTime,
- 6: StorageDescriptor sd,
- 7: map<string, string> parameters
- }
- // index on a hive table is also another table whose columns are the subset of the base table columns along with the offset
- // this will automatically generate table (table_name_index_name)
- struct Index {
- 1: string indexName, // unique with in the whole database namespace
- 2: i32 indexType, // reserved
- 3: string tableName,
- 4: string dbName,
- 5: list<string> colNames, // for now columns will be sorted in the ascending order
- 6: string partName // partition name
- }
- // schema of the table/query results etc.
- struct Schema {
- // column names, types, comments
- 1: list<FieldSchema> fieldSchemas, // delimiters etc
- 2: map<string, string> properties
- }
- exception MetaException {
- 1: string message
- }
- exception UnknownTableException {
- 1: string message
- }
- exception UnknownDBException {
- 1: string message
- }
- exception AlreadyExistsException {
- 1: string message
- }
- exception InvalidObjectException {
- 1: string message
- }
- exception NoSuchObjectException {
- 1: string message
- }
- exception IndexAlreadyExistsException {
- 1: string message
- }
- exception InvalidOperationException {
- 1: string message
- }
- exception ConfigValSecurityException {
- 1: string message
- }
- /**
- * This interface is live.
- */
- service ThriftHiveMetastore extends fb303.FacebookService
- {
- bool create_database(1:string name, 2:string description)
- throws(1:AlreadyExistsException o1, 2:MetaException o2)
- Database get_database(1:string name) throws(1:NoSuchObjectException o1, 2:MetaException o2)
- bool drop_database(1:string name) throws(2:MetaException o2)
- list<string> get_databases() throws(1:MetaException o1)
- // returns the type with given name (make seperate calls for the dependent types if needed)
- Type get_type(1:string name) throws(1:MetaException o2)
- bool create_type(1:Type type) throws(1:AlreadyExistsException o1, 2:InvalidObjectException o2, 3:MetaException o3)
- bool drop_type(1:string type) throws(1:MetaException o2)
- map<string, Type> get_type_all(1:string name)
- throws(1:MetaException o2)
- // Gets a list of FieldSchemas describing the columns of a particular table
- list<FieldSchema> get_fields(1: string db_name, 2: string table_name) throws (1: MetaException o1, 2: UnknownTableException o2, 3: UnknownDBException o3),
- // Gets a list of FieldSchemas describing both the columns and the partition keys of a particular table
- list<FieldSchema> get_schema(1: string db_name, 2: string table_name) throws (1: MetaException o1, 2: UnknownTableException o2, 3: UnknownDBException o3)
- // create a Hive table. Following fields must be set
- // tableName
- // database (only 'default' for now until Hive QL supports databases)
- // owner (not needed, but good to have for tracking purposes)
- // sd.cols (list of field schemas)
- // sd.inputFormat (SequenceFileInputFormat (binary like falcon tables or u_full) or TextInputFormat)
- // sd.outputFormat (SequenceFileInputFormat (binary) or TextInputFormat)
- // sd.serdeInfo.serializationLib (SerDe class name eg org.apache.hadoop.hive.serde.simple_meta.MetadataTypedColumnsetSerDe
- void create_table(1:Table tbl) throws(1:AlreadyExistsException o1, 2:InvalidObjectException o2, 3:MetaException o3, 4:NoSuchObjectException o4)
- // drops the table and all the partitions associated with it if the table has partitions
- // delete data (including partitions) if deleteData is set to true
- void drop_table(1:string dbname, 2:string name, 3:bool deleteData)
- throws(1:NoSuchObjectException o1, 2:MetaException o3)
- list<string> get_tables(1: string db_name, 2: string pattern)
- throws (1: MetaException o1)
- Table get_table(1:string dbname, 2:string tbl_name)
- throws (1:MetaException o1, 2:NoSuchObjectException o2)
- // alter table applies to only future partitions not for existing partitions
- void alter_table(1:string dbname, 2:string tbl_name, 3:Table new_tbl)
- throws (1:InvalidOperationException o1, 2:MetaException o2)
- // the following applies to only tables that have partitions
- Partition add_partition(1:Partition new_part)
- throws(1:InvalidObjectException o1, 2:AlreadyExistsException o2, 3:MetaException o3)
- Partition append_partition(1:string db_name, 2:string tbl_name, 3:list<string> part_vals)
- throws (1:InvalidObjectException o1, 2:AlreadyExistsException o2, 3:MetaException o3)
- bool drop_partition(1:string db_name, 2:string tbl_name, 3:list<string> part_vals, 4:bool deleteData)
- throws(1:NoSuchObjectException o1, 2:MetaException o2)
- Partition get_partition(1:string db_name, 2:string tbl_name, 3:list<string> part_vals)
- throws(1:MetaException o1)
- // returns all the partitions for this table in reverse chronological order.
- // if max parts is given then it will return only that many
- list<Partition> get_partitions(1:string db_name, 2:string tbl_name, 3:i16 max_parts=-1)
- throws(1:NoSuchObjectException o1, 2:MetaException o2)
- list<string> get_partition_names(1:string db_name, 2:string tbl_name, 3:i16 max_parts=-1)
- throws(1:MetaException o2)
- // changes the partition to the new partition object. partition is identified from the part values
- // in the new_part
- void alter_partition(1:string db_name, 2:string tbl_name, 3:Partition new_part)
- throws(1:InvalidOperationException o1, 2:MetaException o2)
- // gets the value of the configuration key in the metastore server. returns
- // defaultValue if the key does not exist. if the configuration key does not
- // begin with "hive", "mapred", or "hdfs", a ConfigValSecurityException is
- // thrown.
- string get_config_value(1:string name, 2:string defaultValue)
- throws(1:ConfigValSecurityException o1)
- }
- // these should be needed only for backward compatibility with filestore
- const string META_TABLE_COLUMNS = "columns",
- const string META_TABLE_COLUMN_TYPES = "columns.types",
- const string BUCKET_FIELD_NAME = "bucket_field_name",
- const string BUCKET_COUNT = "bucket_count",
- const string FIELD_TO_DIMENSION = "field_to_dimension",
- const string META_TABLE_NAME = "name",
- const string META_TABLE_DB = "db",
- const string META_TABLE_LOCATION = "location",
- const string META_TABLE_SERDE = "serde",
- const string META_TABLE_PARTITION_COLUMNS = "partition_columns",
- const string FILE_INPUT_FORMAT = "file.inputformat",
- const string FILE_OUTPUT_FORMAT = "file.outputformat",
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