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row0mysql.c:

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Allow always DROPping of a table which is only referenced by FOREIGN KEY constraints from the same table
Many files:
  Do not let REPLACE to perform internally an UPDATE if the table is referenced by a FOREIGN KEY: the manual says that REPLACE must resolve a duplicate key error semantically with DELETE(s) + INSERT, and not by an UPDATE; the internal update caused foreign key checks and cascaded operations to behave in a semantically wrong way
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heikki@hundin.mysql.fi
2004-02-09 23:57:29 +02:00
parent d2d1e6f726
commit d9790a406c
7 changed files with 68 additions and 2 deletions
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2
sql/handler.h
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@ -319,6 +319,8 @@ public:
virtual void append_create_info(String *packet) {}
virtual char* get_foreign_key_create_info()
{ return(NULL);} /* gets foreign key create string from InnoDB */
virtual uint referenced_by_foreign_key() { return 0;} /* used in REPLACE;
is > 0 if table is referred by a FOREIGN KEY */
virtual void init_table_handle_for_HANDLER()
{ return; } /* prepare InnoDB for HANDLER */
virtual void free_foreign_key_create_info(char* str) {}