80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
/* Copyright (c) 2001, 2015, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software Foundation,
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51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA */
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/* Execute DO statement */
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#include "transaction.h"
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#include "sql_do.h"
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#include "sql_base.h" // open_tables_for_query
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#include "sql_select.h" // handle_query
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#include "auth_common.h" // check_table_access
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bool mysql_do(THD *thd, LEX *lex)
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{
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DBUG_ENTER("mysql_do");
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if (check_table_access(thd, SELECT_ACL, lex->query_tables, false, UINT_MAX,
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false))
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DBUG_RETURN(true);
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DBUG_ASSERT(!lex->unit->global_parameters()->explicit_limit);
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if (open_tables_for_query(thd, lex->query_tables, 0))
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DBUG_RETURN(true);
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DBUG_ASSERT(!lex->describe);
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Query_result *result= new Query_result_do(thd);
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if (!result)
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DBUG_RETURN(true);
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if (handle_query(thd, lex, result, 0, 0))
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DBUG_RETURN(true);
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DBUG_RETURN(false);
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}
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bool Query_result_do::send_data(List<Item> &items)
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{
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DBUG_ENTER("Query_result_do::send_data");
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char buffer[MAX_FIELD_WIDTH];
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String str_buffer(buffer, sizeof (buffer), &my_charset_bin);
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List_iterator_fast<Item> it(items);
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// Evaluate all fields, but do not send them
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for (Item *item= it++; item; item= it++)
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{
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if (item->evaluate(thd, &str_buffer))
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DBUG_RETURN(true);
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}
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DBUG_RETURN(false);
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}
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bool Query_result_do::send_eof()
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{
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/*
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Don't send EOF if we're in error condition (which implies we've already
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sent or are sending an error)
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*/
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if (thd->is_error())
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return true;
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::my_ok(thd);
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return false;
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}
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