Segment fault if CREATE IMMV with GROUP BY clause

[thoshiai]

Follow the steps below to reproduce.

test=# CREATE TABLE test (id int);
CREATE TABLE
test=# CREATE INCREMENTAL MATERIALIZED VIEW immv AS SELECT COUNT(id) FROM test GROUP BY id;
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.
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.
!?> 

This cause is that key column with GROUP BY clause is not contained in targetlist.

[yugo-n]

@thoshiai Is it already resolved?

[tatsuo-ishii]

I confirmed this has been fixed. ERROR: GROUP BY expression not appeared in select list is not supported on incrementally maintainable materialized view `

[tatsuo-ishii]

Close this issue now.