add generateUpdateSQL

src/dbUtil.jl

@@ -190,9 +190,11 @@ function generateUpdateSQL(table_name::String, pk_dict::AbstractDict{String, Any
     # Build SET clause
     set_parts = String[]
     for (key, value) in data
+        if key ∉ keys(data)
             value_str = isa(value, AbstractString) ? "'$value'" : "$value"
             push!(set_parts, "$(string(key)) = $value_str")
         end
+    end
     
     set_clause = join(set_parts, ", ")