Urkle questions

Urkle answers

• Create an index over distinct values of a column in PostgreSQL
• How can you generate a Makefile from an Xcode project?
• Rails Prepared Statement with select_all
• how to use #if,#else,#endif... inside c macro
• sed -i command for in-place editing to work with both GNU sed and BSD/OSX
• CMake Multiple line comments - Block Comment