Interface Handler

IceFireDB-SQLProxy/pkg/mysql/server/command.go:12–34

)

type Handler interface {
	// close conn
	CloseConn(c *Conn) error
	// handle COM_INIT_DB command, you can check whether the dbName is valid, or other.
	UseDB(conn *Conn, dbName string) error
	// handle COM_QUERY command, like SELECT, INSERT, UPDATE, etc...
	// If Result has a Resultset (SELECT, SHOW, etc...), we will send this as the response, otherwise, we will send Result
	HandleQuery(conn *Conn, query string) (*Result, error)
	// handle COM_FILED_LIST command
	HandleFieldList(conn *Conn, table string, fieldWildcard string) ([]*Field, error)
	// handle COM_STMT_PREPARE, params is the param number for this statement, columns is the column number
	// context will be used later for statement execute
	HandleStmtPrepare(conn *Conn, query string) (params int, columns int, context any, err error)
	// handle COM_STMT_EXECUTE, context is the previous one set in prepare
	// query is the statement prepare query, and args is the params for this statement
	HandleStmtExecute(conn *Conn, context any, query string, args []any) (*Result, error)
	// handle COM_STMT_CLOSE, context is the previous one set in prepare
	// this handler has no response
	HandleStmtClose(conn *Conn, context any) error
	// handle any other command that is not currently handled by the library,
	// default implementation for this method will return an ER_UNKNOWN_ERROR
	HandleOtherCommand(conn *Conn, cmd byte, data []byte) error
}

func (c *Conn) HandleCommand() error {
	if c.Conn == nil {