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sql_show.cc, handler.h, handler.cc:

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Add foreign key defs to SHOW CREATE TABLE
This commit is contained in:
heikki@hundin.mysql.fi
2002-03-21 18:05:46 +02:00
parent e90a57aa49
commit 1f142262a1
3 changed files with 18 additions and 5 deletions
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5
sql/handler.cc
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@ -260,13 +260,13 @@ int ha_autocommit_or_rollback(THD *thd, int error)
/* /*
This function is called when MySQL writes the log segment of a This function is called when MySQL writes the log segment of a
transaction to the binlog. It is called when the LOCK_log mutex is transaction to the binlog. It is called when the LOCK_log mutex is
reserved. Here we communicate to transactional table handlers whta reserved. Here we communicate to transactional table handlers what
binlog position corresponds to the current transaction. The handler binlog position corresponds to the current transaction. The handler
can store it and in recovery print to the user, so that the user can store it and in recovery print to the user, so that the user
knows from what position in the binlog to start possible knows from what position in the binlog to start possible
roll-forward, for example, if the crashed server was a slave in roll-forward, for example, if the crashed server was a slave in
replication. This function also calls the commit of the table replication. This function also calls the commit of the table
handler, because the order of trasnactions in the log of the table handler, because the order of transactions in the log of the table
handler must be the same as in the binlog. handler must be the same as in the binlog.
arguments: arguments:
@ -298,7 +298,6 @@ int ha_report_binlog_offset_and_commit(THD *thd,
return error; return error;
} }
int ha_commit_trans(THD *thd, THD_TRANS* trans) int ha_commit_trans(THD *thd, THD_TRANS* trans)
{ {
int error=0; int error=0;

4
sql/handler.h
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@ -294,7 +294,9 @@ public:
virtual char *update_table_comment(const char * comment) virtual char *update_table_comment(const char * comment)
{ return (char*) comment;} { return (char*) comment;}
virtual void append_create_info(String *packet) {} virtual void append_create_info(String *packet) {}
virtual char* get_foreign_key_create_info()
{ return(NULL);} /* gets foreign key create string from InnoDB */
virtual void free_foreign_key_create_info(char* str) {}
/* The following can be called without an open handler */ /* The following can be called without an open handler */
virtual const char *table_type() const =0; virtual const char *table_type() const =0;
virtual const char **bas_ext() const =0; virtual const char **bas_ext() const =0;

14
sql/sql_show.cc
View File

@ -889,9 +889,21 @@ store_create_info(THD *thd, TABLE *table, String *packet)
} }
packet->append(')'); packet->append(')');
} }
packet->append("\n)", 2);
handler *file = table->file; handler *file = table->file;
/* Get possible foreign key definitions stored in InnoDB and append them
to the CREATE TABLE statement */
char* for_str = file->get_foreign_key_create_info();
if (for_str) {
packet->append(for_str, strlen(for_str));
file->free_foreign_key_create_info(for_str);
}
packet->append("\n)", 2);
packet->append(" TYPE=", 6); packet->append(" TYPE=", 6);
packet->append(file->table_type()); packet->append(file->table_type());
char buff[128]; char buff[128];