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Viewing changes to storage/maria/file_formats.txt

manual merge 6.0-main --> 6.0-bka-review

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storage/maria/file_formats.txt
 
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#
 
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# This should contain a description of the file format for most Maria files
 
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#
 
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# Description of the header in the index file
 
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Header, 24 bytes
 
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Pos  Length
 
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0    4  file_version
 
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4    2  options
 
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6    2  header_length
 
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8    2  state_info_length
 
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10   2  base_info_length
 
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12   2  base_pos
 
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14   2  key_parts
 
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16   2  unique_key_parts
 
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18   1  keys
 
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19   1  uniques
 
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20   1  language
 
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21   1  fulltext_keys
 
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22   1  data_file_type
 
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23   1  org_data_file_type
 
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Status part
 
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24   2  open_count
 
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26   2  state_changed
 
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28   7  create_rename_lsn
 
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     7  is_of_horizon
 
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     7  skip_redo_lsn
 
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     8  state.records
 
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     8  state->state.del
 
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     8  state->split
 
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     8  state->dellink
 
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     8  state->first_bitmap_with_space
 
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     8  state->state.key_file_length
 
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     8  state->state.data_file_length
 
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     8  state->state.empty
 
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     8  state->state.key_empty
 
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     8  state->auto_increment
 
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     8  state->state.checksum
 
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     4  state->process
 
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     4  state->unique
 
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     4  state->status
 
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     4  state->update_count
 
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     1  state->sortkey
 
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     1  reserved
 
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for each key
 
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     8  state->key_root[i]
 
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     8  state->key_del
 
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     4  state->sec_index_changed
 
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     4  state->sec_index_used
 
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     4  state->version
 
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     8  state->key_map
 
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     8  state->create_time
 
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     8  state->recover_time
 
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     8  state->check_time
 
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     8  state->records_at_analyze
 
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for each key
 
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    4   reserved
 
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for each key part
 
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    8   state->rec_per_key_part[i]
 
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    4   state->nulls_per_key_part[i]