Node.js mysql Syntax Error in Merge Statement? -

i have sql query constructed follows:

tmpquery = "insert vertix_users (user_name, user_email, user_pass) " +     "values (" + mysql.escape(username) +     ", " + mysql.escape(useremail) +      ", " + mysql.escape(userpass) + ")";  tmpquery = "merge vertix_users (holdlock) olddata " +     "using (values (@user_name, @user_email)) newdata (" + mysql.escape(username) + ", " + mysql.escape(useremail) + ") " +     "on newdata.user_name = olddata.user_name , newdata.user_email = olddata.user_email " +     "when not matched target " + tmpquery; 

when execute code, following log:

merge vertix_users (holdlock) olddata using (values (@user_name, @user_email)) newdata ('asfasfsaff vvv', 'asfasfasfasf') on newdata.user_name = olddata.user_name , newdata.user_email = olddata.user_email when not matched target insert vertix_users (user_name, user_email, user_pass) values ('asfasfsaff vvv', 'asfasfasfasf', 'saqqq') 

and sql syntax error reads:

you have error in sql syntax; check manual corresponds mysql server version right syntax use near 'merge vertix_users (holdlock) olddata using (values (@user_name, @user_e' @ line 1] 

a simple insert statement without merge works fine, add second portion of code, creates error.

merge not supported mysql, equivalent

insert ... on duplicate key update