EXAplus parameter -x doesn't work for all syntax errors, causing wrong exit status

Detail name	Value
Changelog Number	8283
Type	Bug
Status	Resolved
Affected Versions	EXASOL 6.0.0, Exasol 6.1.0, Exasol 6.2.0
Fix Versions	Exasol 7.0.0, Exasol 6.2.3, Exasol 7.0.0-alpha1
Resolution Date	2019-10-10

Background

The exaplus commandline supports the parameter -x to immediately exit on any error and notify the calling process through a matching exit code.

Bug

This parameter doesn't work for some types of syntax errors, in particular incomplete queries (missing semicolon) and queries with additional text behind the semicolon. This also causes the exit status to be 0 (zero), indicating no error, instead of the expected value 2, indicating the error.