Do not test non-instant ADD COLUMN for ROW_FORMAT=COMPRESSED

mysql-test/suite/innodb/r/instant_alter,32k.rdiff

-846c846
-< SPATIAL INDEX(c3)) ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
----
-> SPATIAL INDEX(c3)) ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
-950c950
-< ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED
----
-> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
-972c972
-< ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED
----
-> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
-988c988
-< ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
----
-> ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
-1015c1015
-< ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
----
-> ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
-1086c1086
-< ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
----
-> ENGINE=InnoDB ROW_FORMAT=DYNAMIC;

mysql-test/suite/innodb/r/instant_alter,64k.rdiff

-846c846
-< SPATIAL INDEX(c3)) ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
----
-> SPATIAL INDEX(c3)) ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
-950c950
-< ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED
----
-> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
-972c972
-< ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=COMPRESSED
----
-> ) ENGINE=InnoDB DEFAULT CHARSET=latin1 ROW_FORMAT=DYNAMIC
-988c988
-< ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
----
-> ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
-1015c1015
-< ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
----
-> ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
-1086c1086
-< ENGINE=InnoDB ROW_FORMAT=COMPRESSED;
----
-> ENGINE=InnoDB ROW_FORMAT=DYNAMIC;

mysql-test/suite/innodb/t/instant_alter.test

@@ -4,16 +4,21 @@
 --echo # MDEV-11369: Instant ADD COLUMN for InnoDB
 --echo #
 
+# FIXME: Test that instant ADD is not allowed on ROW_FORMAT=COMPRESSED
+# (create a table with SPATIAL INDEX, ROW_FORMAT=COMPACT, and
+# show that ALTER TABLE…ADD COLUMN…LOCK=NONE is refused.
+# This does not work yet for any table, because
+# check_if_supported_inplace_alter()
+# does not check if instant ADD is possible.)
+
 SET timestamp = 42;
 SET time_zone='+03:00';
 
-let $format= 4;
+let $format= 3;
 while ($format) {
 let $engine= `SELECT CONCAT('ENGINE=InnoDB ROW_FORMAT=',CASE $format
-WHEN 1 THEN CASE WHEN @@GLOBAL.innodb_page_size>16384
-THEN 'DYNAMIC' ELSE 'COMPRESSED' END
-WHEN 2 THEN 'DYNAMIC'
-WHEN 3 THEN 'COMPACT'
+WHEN 1 THEN 'DYNAMIC'
+WHEN 2 THEN 'COMPACT'
 ELSE 'REDUNDANT' END)`;
 
 eval CREATE TABLE t1