On Fri, Jul 30, 2021, Steven Rostedt wrote: > + > +The SQL format is as follows: > + > +*SELECT* <fields> FROM <start-event> JOIN <end-event> ON <matching-fields> WHERE <filter> > + > +Note, although the examples show the SQL commands in uppercase, they are not required to > +be so. That is, you can use "SELECT" or "select" or "sElEct". > + Maybe it would be helpful to mention that, unlike normal SELECT queries, the JOIN and ON parts above are _not_ optional? That is, generic "one event source" queries: SELECT common_pid,msr,val FROM write_msr WHERE msr=72 are not supported. (I wish they were though ;-)) BTW, thanks a lot for this work. It will finally make synthetic events usable! Kind regards, -- Ahmed S. Darwish Linutronix GmbH
