INSTALL PLUGIN example SONAME 'ha_example.so';
ERROR HY000: Can't open shared library 'ha_example.so' (errno: 1, Loading of experimental plugin EXAMPLE is prohibited by --plugin-maturity=stable)
INSTALL SONAME 'ha_example.so';
ERROR HY000: Can't open shared library 'ha_example.so' (errno: 1, Loading of experimental plugin EXAMPLE is prohibited by --plugin-maturity=stable)
show warnings;
Level	Code	Message
Error	1126	Can't open shared library 'ha_example.so' (errno: 1, Loading of experimental plugin EXAMPLE is prohibited by --plugin-maturity=stable)
Error	1126	Can't open shared library 'ha_example.so' (errno: 1, Loading of experimental plugin UNUSABLE is prohibited by --plugin-maturity=stable)