Hi, Roberto! On Oct 17, Roberto Spadim wrote:

i was reading this: https://mariadb.com/kb/en/information-schema-plugins-show-and-flush-statemen...

and i'm with some doubts... automatically parser translate "_" to space? for example table A_B, i could use SHOW A B ?

yeah, I thought about it. I would look nice, surely. But I don't believe bison generated parser can handle this, it doesn't really support dynamically changing grammar.

about the FLUSH what it does? any example of what it should do? like... i know we can reset some information counters, it's a 'shortcut' to avoid something like "SET pluginvariable=0"? if yes, maybe we could add some example at KB page, i'm with doubts, maybe a dba without knowledge about plugin internal will not understand

Yes, it's useful to reset statistics that information schema plugin shows. See examples in query_response_time plugin and in userstat plugins. Old way of doing the same was to have a special variable, like in query_response_time plugin in 10.0: set @@query_response_time_flush=1; but it was kind of a hack, query_response_time_flush was not really a variable, its value was useless, for example. And it was not behaving as a user intuitively expects it to. Now one can write flush query_response_time; which is much more logical and intuitively expected. Regards, Sergei