OceanBase CREATE INDEX

CREATE [UNIQUE] INDEX indexname 
?????ON tblname (index_col_name,...) 
      [index_type] [index_options] 
index_type: 
      USING BTREE

index_options: 
      index_option [index_option…]
      
index_option: 
    GLOBAL | LOCAL
    | COMMENT 'string'
    | COMPRESSION [=] {NONE | LZ4_1.0 | LZO_1.0 | SNAPPY_1.0 | ZLIB_1.0}
    | BLOCK_SIZE [=] size
    | STORING(columname_list) 
    | VISIBLE | INVISIBLE

index_col_name: 
    colname [(length)] [ASC | DESC]

columname_list: 
    colname [, colname…]

CREATE TABLE test (c1 INT PRIMARY KEY, c2 VARCHAR(10));

CREATE INDEX test_index ON test (c1, c2);

SELECT * FROM USER_INDEXES WHERE table_name='TEST'\G