Ticket Hash: | 8075e2d150258d4c9c77c9f7650b7861edc5c8f6 | |||
Title: | Bug found when execute(...) with template query | |||
Status: | Closed | Type: | Code Defect | |
Severity: | Important | Priority: | Immediate | |
Subsystem: | Library | Resolution: | Works as Designed | |
Last Modified: | 2020-07-23 06:55:59 | |||
Version Found In: | mysql++-3.2.4 | |||
User Comments: | ||||
anonymous added on 2018-12-20 09:13:04:
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MySQL version: mysql-5.7.23-win32 OS: Windows 10 1809 Visual Studio: vs2015 update 3 I built mysql++-3.2.4 in its vc2005 project and got the x86 lib. I did some modification in the resetdb.cpp and ran the resetdb project, then I found a problem. ``` // Now create empty images table, for testing BLOB and auto- // increment column features. cout << "Creating empty images table..." << endl; query.reset(); // forget template query info query << "CREATE TABLE images (" << " id INT UNSIGNED AUTO_INCREMENT, " << " data BLOB, " << " PRIMARY KEY (id)" << ")"; query.execute(); query.execute( "insert into images (data) values (\"def\")"); query << "insert into %1:tab (%2:field) values (%0q:val1)"; //query << "insert into %0:table values (\"def\")"; query.parse(); query.template_defaults["tab"] = "images"; query.template_defaults["field"] = "data"; query.template_defaults["val1"] = "abc"; //query.template_defaults["field"] = "data"; cout << query.str() << endl; query.execute("abc", "images"); query.execute("images"); query.reset(); ``` A BadQuery was caught when executing `query.execute("images");`. I debuged and waited in mysql_real_query(...), then I found that the `qstr` is "images". I think it's something wrong when there're more than one placeholder but pass only one parameter into execute(...). If it's not a bug, please give me some advice on how to do in this situation. tangent added on 2020-07-23 06:55:59: (text/x-markdown) The 1-parameter case has always been a mess due to the limitations of C++ overloads. |