Major Description
Customer has a function which will call get_ao_compression_ratio() to pass the relation name dynamically. However in some corner case get_ao_compression_ratio() will be passed with NULL, which triggered a signal 11 and crashed the master process.
The issue could be easily reproduced in house as shown below:
gpadmin=# select get_ao_compression_ratio(null);
server closed the connection unexpectedly
This probably means the server terminated abnormally
before or while processing the request.
The connection to the server was lost. Attempting reset: Failed.
!> \q
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