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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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out of order". (final version)
Now instead of binding Item_trigger_field to TABLE objects during
trigger definition parsing at table open, we perform pass through
special list of all such objects in trigger. This allows easily check
all references to fields in old/new version of row in trigger during
execution of CREATE TRIGGER statement (this is more courtesy for users
since we can't check everything anyway).
We also report that such reference is bad by returning error from
Item_trigger_field::fix_fields() method (instead of setup_field())
This means that if trigger is broken we will bark during trigger
execution instead of trigger definition parsing at table open.
(i.e. now we allow to open tables with broken triggers).
mysql-test/r/trigger.result:
Added test which attempts to create trigger for table referencing to
field which does not exist in this table.
mysql-test/t/trigger.test:
Added test which attempts to create trigger for table referencing to
field which does not exist in this table.
sql/item.cc:
Item_trigger_field::setup_field() now returns void. If any error
will occur we will report it at fix_fields() stage.
sql/item.h:
Item_trigger_field:
- Added next_trg_field member for linking all such objects in trigger
in one list.
- Also setup_field() now returns void. If any error will occur we will
report it at fix_fields() stage.
sql/mysql_priv.h:
Added SQL_LIST::push_back() method which allows to add another SQL_LIST
to the end of this SQL_LIST.
sql/sp_head.cc:
sp_head::init()/reset_lex()/restore_lex():
In order to fill global LEX::trg_table_fields (list of all
Item_trigger_field objects for trigger) we should init the same list
in LEX of substatement before its parsing and merge it to global list
after parsing.
sql/sp_head.h:
sp_instr_trigger_field:
Made trigger_field member public to be able to add it more easily to
global list of all Item_trigger_field objects in trigger.
sql/sql_lex.cc:
LEX::trg_table was removed.
sql/sql_lex.h:
Now we are binding Item_trigger_field's to TABLE object by passing
through specially constructed list of all such objects in this trigger
instead of doing this during trigger definition parsing at table open.
So we no longer need LEX::trg_table, we use LEX::trg_table_fields list
instead.
sql/sql_parse.cc:
mysql_execute_command():
Since now we use trigger body for some checks in
mysql_create_or_drop_trigger() we should destroy it only
after calling this function.
sql/sql_trigger.cc:
Now instead of binding Item_trigger_field to TABLE objects during
trigger definition parsing at table open, we perform pass through
special list of all such objects in trigger. This allows easily check
all references to fields in old/new version of row in trigger during
execution of CREATE TRIGGER statement (this is more courtesy for users
since we can't check everything anyway).
We also report that such reference is bad by returning error from
Item_trigger_field::fix_fields() method (instead of setup_field())
This means that if trigger is broken we will bark during trigger
execution instead of trigger definition parsing at table open.
(i.e. now we allow to open tables with broken triggers).
Table_triggers_list::prepare_old_row_accessors() method was added to be
able to reuse code creating Field objects referencing TABLE::record[1]
buffer instead of TABLE::record[0].
sql/sql_trigger.h:
Added Table_triggers_list::prepare_old_row_accessors() method to be
able to reuse code creating Field objects referencing to TABLE::record[1]
instead of record[0].
sql/sql_yacc.yy:
Now instead of performing binding of Item_trigger_field objects
to TABLE object during trigger definition parsing at table open,
we perform this binding by passing through specially constructed
list of all such items in trigger.
We also check value returned from memory allocation functions.
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| bdb | ||
| BitKeeper | ||
| BUILD | ||
| Build-tools | ||
| client | ||
| cmd-line-utils | ||
| dbug | ||
| Docs | ||
| extra | ||
| heap | ||
| include | ||
| innobase | ||
| isam | ||
| libmysql | ||
| libmysql_r | ||
| libmysqld | ||
| man | ||
| merge | ||
| myisam | ||
| myisammrg | ||
| mysql-test | ||
| mysys | ||
| ndb | ||
| netware | ||
| NEW-RPMS | ||
| os2 | ||
| pstack | ||
| regex | ||
| scripts | ||
| server-tools | ||
| sql | ||
| sql-bench | ||
| sql-common | ||
| SSL | ||
| strings | ||
| support-files | ||
| tests | ||
| tools | ||
| VC++Files | ||
| vio | ||
| zlib | ||
| .bzrignore | ||
| .cvsignore | ||
| acinclude.m4 | ||
| config.guess | ||
| config.sub | ||
| configure.in | ||
| depcomp | ||
| install-sh | ||
| ltconfig | ||
| ltmain.sh | ||
| Makefile.am | ||
| missing | ||
| mkinstalldirs | ||
| README | ||
This is a release of MySQL, a GPL (free) SQL database server (more licence information in the PUBLIC file and in the reference manual). Please read the "Upgrading from..." section in the manual first, if you are migrating from older versions of MySQL! The latest information about MySQL can be found at: http://www.mysql.com To see what it can do take a look at the features section in the manual. For installation instructions see the Installation chapter in the manual. For future plans see the TODO appendix in the manual. New features/bug fixes history is in the news appendix in the manual. For the currently known bugs/misfeatures (known errors) see the bugs appendix in the manual. For examples of SQL and benchmarking information see the bench directory. The manual mentioned above can be found in the Docs directory. The manual is available in the following formats: as plain ASCII text in Docs/manual.txt, in HTML format in Docs/manual_toc.html, as GNU Info in Docs/mysql.info and as PostScript in Docs/manual.ps. MySQL is brought to you by the MySQL team at MySQL AB For a list of developers and other contributors, see the Credits appendix in the manual. ************************************************************ IMPORTANT: Send bug (error) reports, questions and comments to the mailing list at mysql@lists.mysql.com Please use the 'mysqlbug' script when posting bug reports or questions about MySQL. mysqlbug will gather some information about your system and start your editor with a form in which you can describe your problem. Bug reports might be silently ignored by the MySQL maintainers if there is not a good reason included in the report as to why mysqlbug has not been used. A report that says 'MySQL does not work for me. Why?' is not considered a valid bug report. The mysqlbug script can be found in the 'scripts' directory of the distribution, that is '<where-you-installed-mysql>/scripts'.