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MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.
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0b8342ba4e
View definition as SELECT ... FROM DUAL WHERE ... has valid syntax, but use of such view in SELECT or SHOW CREATE VIEW syntax causes unexpected syntax error. Server omits FROM DUAL clause when storing view body string in a .frm file for further evaluation. However, syntax of SELECT-witout-FROM query is more restrictive than SELECT FROM DUAL syntax, and doesn't allow the WHERE clause. NOTE: this syntax difference is not documented. View registration procedure has been modified to preserve original structure of view's body. mysql-test/r/view.result: Added test case for bug #35193. mysql-test/t/view.test: Added test case for bug #35193. sql/sql_select.cc: Fixed bug #35193. The st_select_lex::print function always omits FROM DUAL clause, even if original SELECT query has the WHERE clause. The mysql_register_view function uses this function to reconstruct a body of view's AS clause for further evaluation and stores that reconstructed clause in a .frm file. SELECT without FROM syntax is more restrictive than SELECT FROM DUAL syntax: second one allows the WHERE clause, but first one is not. Use of this view in SELECT or SHOW CREATE VIEW queries causes unexpected syntax errors. The st_select_lex::print function has been modified to reconstruct FROM DUAL clause in queries when needed. TODO: Syntax difference is not documented and should be eliminated, however improvement of the SELECT-without-FROM syntax is not trivial and leads to significant modification of grammar file because of additional shift/reduce conflicts. |
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| extra | ||
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| innobase | ||
| libmysql | ||
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| win | ||
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| configure.in | ||
| COPYING | ||
| EXCEPTIONS-CLIENT | ||
| INSTALL-SOURCE | ||
| INSTALL-WIN-SOURCE | ||
| Makefile.am | ||
| README | ||
This is a release of MySQL, a dual-license SQL database server. MySQL is brought to you by the MySQL team at MySQL AB. License information can be found in these files: - For GPL (free) distributions, see the COPYING file and the EXCEPTIONS-CLIENT file. - For commercial distributions, see the LICENSE.mysql file. For further information about MySQL or additional documentation, see: - The latest information about MySQL: http://www.mysql.com - The current MySQL documentation: http://dev.mysql.com/doc Some manual sections of special interest: - If you are migrating from an older version of MySQL, please read the "Upgrading from..." section first! - To see what MySQL can do, take a look at the features section. - For installation instructions, see the Installing and Upgrading chapter. - For the new features/bugfix history, see the Change History appendix. - For the currently known bugs/misfeatures (known errors) see the Problems and Common Errors appendix. - For a list of developers and other contributors, see the Credits appendix. A local copy of the MySQL Reference Manual can be found in the Docs directory in GNU Info format. You can also browse the manual online or download it in any of several formats at the URL given earlier in this file. ************************************************************ IMPORTANT: Bug or error reports should be sent to http://bugs.mysql.com.