Example Of CREATE INDEX Mysql statement:

CREATE [UNIQUE|FULLTEXT|SPATIAL] INDEX index_name
[index_type]
ON tbl_name (index_col_name,...)
[index_option] ...

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

index_type:
USING {BTREE | HASH | RTREE}
index_option:
KEY_BLOCK_SIZE [=] value
| index_type
| WITH PARSER parser_name
| COMMENT 'string'