Laravel雄辩的postgres从csv查询复制

I want to copy data from csv to postgress running following sql query:

DB::statement("\COPY marketo.leads FROM '/home/mark/dw_files/tests/leads.csv' DELIMITER ',' CSV HEADER;");

And I get the error :

Illuminate\Database\QueryException : SQLSTATE[42601]: Syntax error: 7 ERROR: syntax error at or near "\" LINE 1: \COPY marketo.leads FROM '/home/mark/dw_files/tests/leads.cs... ^ (SQL: \COPY marketo.leads FROM '/home/mark/dw_files/tests/leads.csv' DELIMITER ',' CSV HEADER;)

Caused by PDOException: SQLSTATE[42601]: Syntax error: 7 ERROR: syntax error at or near "\" LINE 1: \COPY marketo.leads FROM '/home/mark/dw_files/tests/leads.cs... ^

Although when I run this query in psql it works ok.