perf scripts python: export-to-sqlite.py: Fix DROP VIEW power_events_view

Drop power_events_view before its dependent tables.

SQLite does not seem to mind but the fix was needed for PostgreSQL
(export-to-postgresql.py script), so do the same fix for the SQLite. It is
more logical and keeps the 2 scripts following the same approach.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Fixes: 5130c6e55531 ("perf scripts python: export-to-sqlite.py: Export Intel PT power and ptwrite events")
Link: http://lkml.kernel.org/r/20190708055232.5032-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/scripts/python/export-to-sqlite.py b/tools/perf/scripts/python/export-to-sqlite.py
index 3222a83..021326c 100644 (file)
--- a/tools/perf/scripts/python/export-to-sqlite.py
+++ b/tools/perf/scripts/python/export-to-sqlite.py
@@ -608,11 +608,11 @@ def trace_end():
        if is_table_empty("ptwrite"):
                drop("ptwrite")
        if is_table_empty("mwait") and is_table_empty("pwre") and is_table_empty("exstop") and is_table_empty("pwrx"):
+               do_query(query, 'DROP VIEW power_events_view');
                drop("mwait")
                drop("pwre")
                drop("exstop")
                drop("pwrx")
-               do_query(query, 'DROP VIEW power_events_view');
                if is_table_empty("cbr"):
                        drop("cbr")