【原创】大数据基础之Hive（4）hive元数据库核心表结构

1 dbs

+-------+-----------------------+----------------------------------------------+------------+------------+------------+
| DB_ID | DESC | DB_LOCATION_URI | NAME | OWNER_NAME | OWNER_TYPE |
+-------+-----------------------+----------------------------------------------+------------+------------+------------+
key columns：DB_ID

1.1 database_params

2 tbls

+--------+-------------+-------+------------------+-----------+-----------+-------+---------------------------+----------------+--------------------+--------------------+--------------------+
| TBL_ID | CREATE_TIME | DB_ID | LAST_ACCESS_TIME | OWNER | RETENTION | SD_ID | TBL_NAME | TBL_TYPE | VIEW_EXPANDED_TEXT | VIEW_ORIGINAL_TEXT | IS_REWRITE_ENABLED |
+--------+-------------+-------+------------------+-----------+-----------+-------+---------------------------+----------------+--------------------+--------------------+--------------------+
key columns：TBL_ID, DB_ID, SD_ID

2.1 table_params

+--------+-----------------------------+-------------+
| TBL_ID | PARAM_KEY | PARAM_VALUE |
+--------+-----------------------------+-------------+

3 partitions

+---------+-------------+------------------+-------------+-------+--------+
| PART_ID | CREATE_TIME | LAST_ACCESS_TIME | PART_NAME | SD_ID | TBL_ID |
+---------+-------------+------------------+-------------+-------+--------+
key columns：PART_ID, SD_ID, TBL_ID

3.1 partition_params

4 sds

+-------+-------+--------------------------------------------------+---------------+---------------------------+-----------------------------------------------------------------+-------------+------------------------------------------------------------+----------+
| SD_ID | CD_ID | INPUT_FORMAT | IS_COMPRESSED | IS_STOREDASSUBDIRECTORIES | LOCATION | NUM_BUCKETS | OUTPUT_FORMAT | SERDE_ID |
+-------+-------+--------------------------------------------------+---------------+---------------------------+-----------------------------------------------------------------+-------------+------------------------------------------------------------+----------+
key columns：SD_ID, CD_ID, SERDE_ID

4.1 sd_params

5 serdes

+----------+------+----------------------------------------------------+
| SERDE_ID | NAME | SLIB |
+----------+------+----------------------------------------------------+
key columns：SERDE_ID

5.1 serde_params

6 cds

+-------+
| CD_ID |
+-------+
key columns：CD_ID

7 column2_v2

+-------+---------+-------------+-----------+-------------+
| CD_ID | COMMENT | COLUMN_NAME | TYPE_NAME | INTEGER_IDX |
+-------+---------+-------------+-----------+-------------+
key columns：CD_ID

8 version

+--------+----------------+---------------------------------------+
| VER_ID | SCHEMA_VERSION | VERSION_COMMENT |
+--------+----------------+---------------------------------------+

9 all tables

+--------------------------------+
| aux_table |
| bucketing_cols |
| cds |
| columns_v2 |
| compaction_queue |
| completed_compactions |
| completed_txn_components |
| database_params |
| db_privs |
| dbs |
| delegation_tokens |
| func_ru |
| funcs |
| global_privs |
| hadoopfslsr |
| hive_locks |
| idxs |
| index_params |
| key_constraints |
| master_keys |
| next_compaction_queue_id |
| next_lock_id |
| next_txn_id |
| notification_log |
| notification_sequence |
| nucleus_tables |
| part_col_privs |
| part_col_stats |
| part_privs |
| partition_events |
| partition_key_vals |
| partition_keys |
| partition_params |
| partitions |
| role_map |
| roles |
| sd_params |
| sds |
| sequence_table |
| serde_params |
| serdes |
| skewed_col_names |
| skewed_col_value_loc_map |
| skewed_string_list |
| skewed_string_list_values |
| skewed_values |
| sort_cols |
| tab_col_stats |
| table_params |
| tbl_col_privs |
| tbl_privs |
| tbls |
| txn_components |
| txns |
| type_fields |
| types |
| v_du_sh |
| version |
| write_set |
+--------------------------------+