Markus Dreseler

This looks promising: https://clang.llvm.org/extra/clang-tidy/checks/misc-definitions-in-headers.html (#1901)

Ah, no, it focuses on ODR and doesn't complain about code within classes.

Hi, While we have an SQL interface that supports some queries, we do not support the full MySQL syntax. For the time being, this is not planned. Best, Markus

Correct me if I'm mistaken, but can't we cover that case by simply negating the result of the CID checks if `tidVector[row] == tid`?

``` > valgrind --tool=memcheck --track-origins=yes ./build/units-access_debug [...] ==22006== Uninitialised value was created by a heap allocation ==22006== at 0x4C2B1C7: operator new(unsigned long) (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==22006== by 0x5B81BB: hyrise::access::SimpleFieldExpression* hyrise::access::expression_factory::operator()() (pred_expression_factory.h:87)...