Support parallel index build for hash key

[otegami]

No description provided.

[otegami]

ここまでの対応時のログ

grntest test/command/suite/column_create/vector/source/offline/parallel_for_hash_key.test
offset: 0
  tests/sec |    tests |   passes | failures |   leaked |  omitted | !checked |
|>                                                                                                                                             | [  0%]
=======================================================================================================================================================
[ 0] .
  parallel_for_hash_key                                                                                                         0.3685s [leaked(20511)]
=======================================================================================================================================================
=======================================================================================================================================================
table_create Data TABLE_NO_KEY
[[0,0.0,0.0],true]
column_create Data value1 COLUMN_SCALAR Text
[[0,0.0,0.0],true]
table_create Terms TABLE_HASH_KEY ShortText   --default_tokenizer TokenNgram   --normalizers NormalizerNFKC
[[0,0.0,0.0],true]
column_create Terms data_values COLUMN_INDEX|WITH_POSITION   Data value1 --n_workers -1
[
  [
    [
      -10,
      0.0,
      0.0
    ],
    "system call error: Bad file descriptor: failed to get file offset"
  ],
  false
]
#|e| system call error: Bad file descriptor: failed to get file offset
index_column_diff Terms data_values
[
  [
    [
      -22,
      0.0,
      0.0
    ],
    "[index-column][diff] column doesn't exist: <Terms>: <data_values>"
  ]
]
#|e| [index-column][diff] column doesn't exist: <Terms>: <data_values>
=======================================================================================================================================================
  tests/sec |    tests |   passes | failures |   leaked |  omitted | !checked |
|----------------------------------------------------------------------------------------------------------------------------------------------| [100%]

  tests/sec |    tests |   passes | failures |   leaked |  omitted | !checked |
       2.67 |        1 |        0 |        0 |        1 |        0 |        0 |
0% passed in 0.3744s.