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

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PostgreSQL can error if power_events_view is not dropped before its
dependent tables e.g.

  Exception: Query failed: ERROR:  cannot drop table mwait because other
  objects depend on it
  DETAIL:  view power_events_view depends on table mwait

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Fixes: aba44287a2 ("perf scripts python: export-to-postgresql.py: Export Intel PT power and ptwrite events")
Link: http://lkml.kernel.org/r/20190708055232.5032-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2019-07-08 08:52:31 +03:00 committed by Arnaldo Carvalho de Melo
parent ceb75476db
commit d8d051df9f
1 changed files with 1 additions and 1 deletions
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2
tools/perf/scripts/python/export-to-postgresql.py
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@ -898,11 +898,11 @@ 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")