As I learned from a customer this week, this patch is a must have when you use Partitioning and you attempt to upgrade to Oracle 19.9.0 or earlier. So please apply patch 31088341 before Upgrade to prevent ORA-1403 happening.

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What is the issue?
This applies to all 19c upgrades at least until 19.9.0. You may see this error pattern in catupgrd0.log:
==Error from catupgrd0.log=== ================================================================= 20:34:11 SQL> Rem BEGIN bug 28757685: repair tabpart$ 20:34:11 SQL> Rem ========================================================================= 20:34:11 SQL> /* bug 28757685: tabpart$.hiboundval and tabpart$.hiboundlen are incorrect 20:34:11 SQL> * when tables are… Continue reading...