Various bug-fixes
- Select-Statements:
WHEREandHAVINGclauses can now be called alternatively to arrays with an object as expression parameter. - Select-Statements:
WHEREandHAVINGclauses can now be called with an empty array or an empty object. As a result, noHAVINGorWHEREis generated. Previously, an emptyWHEREorHAVINGwas output. - Various minor changes