postgresql 字符串行转列：

select regexp_split_to_table(col,’,’) from (values(‘addr_id,name_pfx,first_name,mid_name,last_name,name_sfx,attention,title,org_name,laboratory,bus_phone,bus_phone_ext,alt_phone,alt_phone_ext,mobile,alt_mobile,home_phone,fax,fax_ext,bus_email,alt_bus_email,personal_email,alt_personal_email,addr_line1,addr_line2,addr_line3,city,state,zip_code,country,addr_class,gift_message,status,creation_date,created_by,modify_date,modified_by,customer_no,more_email,cust_addr_id,email_invoice,paper_invoice_flag,vat_id,load_dt ‘)) t(col)