Adding unique constraint on Loan Product name

mifosng-db/patches/patch_add_unique_const_on_loanprodname.sql

@@ -0,0 +1,3 @@
+UPDATE m_product_loan SET name = CONCAT(id,'-',name); -- concating unique value to make sure column does not contain any duplicate value
+ALTER TABLE m_product_loan
+ADD CONSTRAINT unq_name UNIQUE (name);