BUG#9922 - INSERT SELECT with UNIONs allows concurrent INSERTs
don't set lex->lock_option=TL_READ in the parser for SELECT
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@ -147,6 +147,7 @@ LEX *lex_start(THD *thd, uchar *buf,uint length)
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lex->select->in_sum_expr=0;
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lex->select->expr_list.empty();
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lex->select->ftfunc_list.empty();
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lex->lock_option=TL_READ;
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lex->convert_set=(lex->thd=thd)->variables.convert_set;
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lex->yacc_yyss=lex->yacc_yyvs=0;
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lex->ignore_space=test(thd->sql_mode & MODE_IGNORE_SPACE);
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@ -1531,7 +1531,6 @@ select_init:
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select_part2:
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{
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LEX *lex=Lex;
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lex->lock_option=TL_READ;
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mysql_init_select(lex);
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}
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select_options select_item_list select_into select_lock_type;
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