github.com/petermattis/pebble@v0.0.0-20190905164901-ab51a2166067/testdata/iterator_table_filter (about)

     1  define
     2  L0
     3    a.SET.4:4
     4  L1
     5    a.SET.3:3
     6  L2
     7    a.SET.2:2
     8  L3
     9    a.SET.1:1
    10  ----
    11  0: a#4,1-a#4,1
    12  1: a#3,1-a#3,1
    13  2: a#2,1-a#2,1
    14  3: a#1,1-a#1,1
    15  
    16  iter
    17  first
    18  ----
    19  a:4
    20  
    21  # Only scan tables with min-seq-num < filter.
    22  
    23  iter filter=5
    24  first
    25  ----
    26  a:4
    27  
    28  iter filter=4
    29  first
    30  ----
    31  a:3
    32  
    33  iter filter=3
    34  first
    35  ----
    36  a:2
    37  
    38  iter filter=2
    39  first
    40  ----
    41  a:1
    42  
    43  iter filter=1
    44  first
    45  ----
    46  .