Fixed Issues in Apache Impala

Review the list of Impala issues that are resolved in Cloudera Runtime 7.2.7.

CDPD-14548: Upgrades a library - PostgreSQL JDBC Driver (pgjdbc) bundled with Impala. The previous version 42.2.5 was affected with vulnerability CVE-2020-13692. It is upgraded to version 42.2.14.
This issue is now resolved.
CDPD-10444: Update the version of Atlas used by Impala
Resolves the inconsistency between the versions of jackson-databind used by Atlas and Impala so that you no longer see the exception NoClassDefFoundError after the call to QueryEventHookManager#executeQueryCompleteHooks() in Impala.