#<Innodb::Page::Index:0x007fc8140a9dd8>:

fil header:
{:checksum=>1909500658,
 :offset=>3,
 :prev=>nil,
 :next=>nil,
 :lsn=>301637903,
 :type=>:INDEX,
 :flush_lsn=>0,
 :space_id=>6}

page header:
{:n_dir_slots=>2,
 :heap_top=>146,
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 :free=>0,
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 :last_insert=>138,
 :direction=>:right,
 :n_direction=>1,
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 :max_trx_id=>0,
 :level=>2,
 :index_id=>19,
 :format=>:compact}

fseg header:
{:leaf=>
  {:fseg_id=>2,
   :not_full_n_used=>57,
   :free=>
    #<Innodb::List::Xdes:0x007fc8140355c8
     @base={:length=>0, :first=>nil, :last=>nil},
     @space=
      #<Innodb::Space:0x007fc8140c36c0
       @file=#<File:t.ibd>,
       @page_size=16384,
       @pages=3072,
       @record_describer=Innodb::RecordDescriber::T,
       @size=50331648>>,
   :not_full=>
    #<Innodb::List::Xdes:0x007fc813863750
     @base=
      {:length=>6,
       :first=>{:page=>0, :offset=>1478},
       :last=>{:page=>0, :offset=>1678}},
     @space=
      #<Innodb::Space:0x007fc8140c36c0
       @file=#<File:t.ibd>,
       @page_size=16384,
       @pages=3072,
       @record_describer=Innodb::RecordDescriber::T,
       @size=50331648>>,
   :full=>
    #<Innodb::List::Xdes:0x007fc813861dd8
     @base=
      {:length=>32,
       :first=>{:page=>0, :offset=>198},
       :last=>{:page=>0, :offset=>1438}},
     @space=
      #<Innodb::Space:0x007fc8140c36c0
       @file=#<File:t.ibd>,
       @page_size=16384,
       @pages=3072,
       @record_describer=Innodb::RecordDescriber::T,
       @size=50331648>>,
   :magic_n=>97937874,
   :frag_array=>
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 :internal=>
  {:fseg_id=>1,
   :not_full_n_used=>0,
   :free=>
    #<Innodb::List::Xdes:0x007fc814182200
     @base={:length=>0, :first=>nil, :last=>nil},
     @space=
      #<Innodb::Space:0x007fc8140c36c0
       @file=#<File:t.ibd>,
       @page_size=16384,
       @pages=3072,
       @record_describer=Innodb::RecordDescriber::T,
       @size=50331648>>,
   :not_full=>
    #<Innodb::List::Xdes:0x007fc8141743d0
     @base={:length=>0, :first=>nil, :last=>nil},
     @space=
      #<Innodb::Space:0x007fc8140c36c0
       @file=#<File:t.ibd>,
       @page_size=16384,
       @pages=3072,
       @record_describer=Innodb::RecordDescriber::T,
       @size=50331648>>,
   :full=>
    #<Innodb::List::Xdes:0x007fc814168cb0
     @base={:length=>0, :first=>nil, :last=>nil},
     @space=
      #<Innodb::Space:0x007fc8140c36c0
       @file=#<File:t.ibd>,
       @page_size=16384,
       @pages=3072,
       @record_describer=Innodb::RecordDescriber::T,
       @size=50331648>>,
   :magic_n=>97937874,
   :frag_array=>
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sizes:
  header           120
  trailer            8
  directory          4
  free           16226
  used             158
  record            26
  per record     13.00

system records:
{:offset=>99,
 :header=>
  {:next=>26,
   :type=>:infimum,
   :order=>0,
   :n_owned=>1,
   :min_rec=>false,
   :deleted=>false},
 :next=>125,
 :data=>"infimum\x00"}
{:offset=>112,
 :header=>
  {:next=>0,
   :type=>:supremum,
   :order=>1,
   :n_owned=>3,
   :min_rec=>false,
   :deleted=>false},
 :next=>112,
 :data=>"supremum"}

page directory:
[99, 112]

records:
{:format=>:compact,
 :offset=>125,
 :header=>
  {:next=>13,
   :type=>:node_pointer,
   :order=>2,
   :n_owned=>0,
   :min_rec=>true,
   :deleted=>false,
   :null_bitmap=>nil,
   :variable_length=>[0]},
 :next=>138,
 :type=>:clustered,
 :key=>[1225],
 :child_page_number=>36}
{:format=>:compact,
 :offset=>138,
 :header=>
  {:next=>-26,
   :type=>:node_pointer,
   :order=>3,
   :n_owned=>0,
   :min_rec=>false,
   :deleted=>false,
   :null_bitmap=>nil,
   :variable_length=>[0]},
 :next=>112,
 :type=>:clustered,
 :key=>[498623],
 :child_page_number=>37}