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Bug#27302459: EMPTY VALUE IN MYSQL.PLUGIN TABLE CAUSES SERVER TO EXIT ON STARTUP

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Description:- During server startup, the server exits if
the 'mysql.plugin' system table has any rows with empty
value for the field 'name' (plugin name).
This commit is contained in:
Sergei Golubchik
2019-04-16 09:33:02 +05:30
committed by Sergei Golubchik
parent c5e9674300
commit 5e8ab9b7af
3 changed files with 11 additions and 0 deletions
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3
sql/sql_plugin.cc
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@ -1781,6 +1781,9 @@ static void plugin_load(MEM_ROOT *tmp_root)
LEX_STRING name= {(char *)str_name.ptr(), str_name.length()};
LEX_STRING dl= {(char *)str_dl.ptr(), str_dl.length()};
if (!name.length || !dl.length)
continue;
/*
there're no other threads running yet, so we don't need a mutex.
but plugin_add() before is designed to work in multi-threaded