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Implement ON DELETE CASCADE and facilitate switching off of UNIQUE constraints and foreign keys
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heikki@hundin.mysql.fi
2002-04-18 10:40:32 +03:00
parent 6519ed11fe
commit 8da85956dd
30 changed files with 768 additions and 178 deletions
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21
innobase/include/row0mysql.h
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@@ -209,6 +209,27 @@ row_update_for_mysql(
row_prebuilt_t* prebuilt); /* in: prebuilt struct in MySQL
handle */
/*************************************************************************
Creates an query graph node of 'update' type to be used in the MySQL
interface. */
upd_node_t*
row_create_update_node_for_mysql(
/*=============================*/
/* out, own: update node */
dict_table_t* table, /* in: table to update */
mem_heap_t* heap); /* in: mem heap from which allocated */
/**************************************************************************
Does a cascaded delete or set null in a foreign key operation. */
ulint
row_update_cascade_for_mysql(
/*=========================*/
/* out: error code or DB_SUCCESS */
que_thr_t* thr, /* in: query thread */
upd_node_t* node, /* in: update node used in the cascade
or set null operation */
dict_table_t* table); /* in: table where we do the operation */
/*************************************************************************
Does a table creation operation for MySQL. If the name of the created
table ends to characters INNODB_MONITOR, then this also starts
printing of monitor output by the master thread. */