Fixed Issues in Impala

Cloudera Runtime 7.1.9 SP2 resolves identified Impala functional errors and includes technical patches to improve service stability and performance.

CDPD-95432: Missing Atlas lineage for Impala script files with comments
Previously, Atlas lineage was not created when an Impala script file contained one-line SQL comments.
This issue is resolved by ensuring that the operation type of a completed query is correctly produced in the lineage event, even when the original query string contains one-line SQL comments.

Apache Jira: IMPALA-14768