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mod_mam_sql: Improve check for empty archive

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Avoid counting the messages of an archive to check whether it's empty.
This commit is contained in:
Holger Weiss 2019-02-21 23:50:16 +01:00
parent 9a3a7369cb
commit f63dcdb790
1 changed files with 7 additions and 9 deletions
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16
src/mod_mam_sql.erl
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@ -268,15 +268,13 @@ export(_Server) ->
is_empty_for_user(LUser, LServer) -> is_empty_for_user(LUser, LServer) ->
case ejabberd_sql:sql_query( case ejabberd_sql:sql_query(
LServer, LServer,
?SQL("select @(count(*))d from archive" ?SQL("select @(1)d from archive"
" where username=%(LUser)s and %(LServer)H")) of " where username=%(LUser)s and %(LServer)H limit 1")) of
{selected, [{Res}]} -> {selected, [{1}]} ->
case Res of false;
0 -> true; _ ->
_ -> false true
end; end.
_ -> false
end.
is_empty_for_room(LServer, LName, LHost) -> is_empty_for_room(LServer, LName, LHost) ->
LUser = jid:encode({LName, LHost, <<>>}), LUser = jid:encode({LName, LHost, <<>>}),