* Revert "Simplification [#CLICKHOUSE-2]."
This reverts commit 98ad6a5db3.
* Fix error: comparison of unsigned expression < 0 is always false
* Fix float division by zero
* Fix float division by zero
* Disable PointInPolygon function if compiling with old clang
* Fix warning:
dbms/src/Functions/FunctionsCoding.h:336:21: error: comparison of constant -1 with expression of type 'const char' is always true [-Werror,-Wtautological-constant-out-of-range-compare]
if (num != -1)
* Fix