I am getting a compiler warning when I build the latest HEAD PostgreSQL with visual studio 2017.
src/backend/replication/logical/proto.c(482): warning C4312: 'type cast': conversion from 'unsigned int' to 'char *' of greater size Details of the warning is available in the link . The code at the line is, tuple->values[i] = (char *) (Size)0xdeadbeef; /* make bad usage more obvious */ If I change the code as (char *) (Size)0xdeadbeef; or (char *) (INT_PTR)0xdeadbeef; the warning disappears. How about fixing it as below and add the typecast or disable this warning? /* * PTR_CAST * Used when converting integer addresses to a pointer. * The casting is used to avoid generating warning in * windows */ #ifdef WIN32 #define PTR_CAST INT_PTR #else #define PTR_CAST #endif  - https://msdn.microsoft.com/en-us/library/h97f4b9y.aspx Regards, Hari Babu Fujitsu Australia