github.com/cockroachdb/pebble@v1.1.2/testdata/iterator_seek_opt_errors (about)

     1  define
     2  a.SET.1:a
     3  b.SET.1:b
     4  c.SET.1:c
     5  d.SET.1:d
     6  ----
     7  
     8  # Exercise noop optimization with no errors
     9  
    10  iter
    11  seek-ge aa
    12  seek-ge aa
    13  seek-ge aaa
    14  seek-ge b
    15  seek-ge bb
    16  ----
    17  b: (b, .)
    18  b: (b, .)
    19  b: (b, .)
    20  b: (b, .)
    21  c: (c, .)
    22  
    23  iter
    24  seek-lt ddd
    25  seek-lt ddd
    26  seek-lt dd
    27  seek-lt d
    28  seek-lt c
    29  ----
    30  d: (d, .)
    31  d: (d, .)
    32  d: (d, .)
    33  c: (c, .)
    34  b: (b, .)
    35  
    36  # Exercise errors which should prevent seek optimizations.
    37  
    38  iter seek-error=(0,1)
    39  seek-ge a
    40  seek-ge b
    41  seek-ge c
    42  seek-ge d
    43  ----
    44  err=injecting error
    45  err=injecting error
    46  c: (c, .)
    47  d: (d, .)
    48  
    49  iter seek-error=(1)
    50  seek-ge d
    51  seek-ge a
    52  seek-ge b
    53  seek-ge b
    54  ----
    55  d: (d, .)
    56  err=injecting error
    57  b: (b, .)
    58  b: (b, .)
    59  
    60  iter seek-error=(0,1)
    61  seek-lt e
    62  seek-lt d
    63  seek-lt c
    64  seek-lt b
    65  ----
    66  err=injecting error
    67  err=injecting error
    68  b: (b, .)
    69  a: (a, .)
    70  
    71  iter seek-error=(1)
    72  seek-lt b
    73  seek-lt e
    74  seek-lt e
    75  ----
    76  a: (a, .)
    77  err=injecting error
    78  d: (d, .)
    79  
    80  iter seek-error=(1)
    81  seek-prefix-ge d
    82  seek-prefix-ge a
    83  seek-prefix-ge b
    84  ----
    85  d: (d, .)
    86  err=injecting error
    87  b: (b, .)