1MDB_LOAD(1) General Commands Manual MDB_LOAD(1)
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6 mdb_load - LMDB environment import tool
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9 mdb_load [-V] [-f file] [-n] [-s subdb] [-N] [-T] envpath
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12 The mdb_load utility reads from the standard input and loads it into
13 the LMDB environment envpath.
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15 The input to mdb_load must be in the output format specified by the
16 mdb_dump(1) utility or as specified by the -T option below.
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19 -V Write the library version number to the standard output, and
20 exit.
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22 -f file
23 Read from the specified file instead of from the standard input.
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25 -n Load an LMDB database which does not use subdirectories.
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27 -s subdb
28 Load a specific subdatabase. If no database is specified, data
29 is loaded into the main database.
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31 -N Don't overwrite existing records when loading into an already
32 existing database; just skip them.
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34 -T Load data from simple text files. The input must be paired lines
35 of text, where the first line of the pair is the key item, and
36 the second line of the pair is its corresponding data item.
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38 A simple escape mechanism, where newline and backslash (\) char‐
39 acters are special, is applied to the text input. Newline char‐
40 acters are interpreted as record separators. Backslash charac‐
41 ters in the text will be interpreted in one of two ways: If the
42 backslash character precedes another backslash character, the
43 pair will be interpreted as a literal backslash. If the back‐
44 slash character precedes any other character, the two characters
45 following the backslash will be interpreted as a hexadecimal
46 specification of a single character; for example, \0a is a new‐
47 line character in the ASCII character set.
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49 For this reason, any backslash or newline characters that natu‐
50 rally occur in the text input must be escaped to avoid misinter‐
51 pretation by mdb_load.
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55 Exit status is zero if no errors occur. Errors result in a non-zero
56 exit status and a diagnostic message being written to standard error.
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60 mdb_dump(1)
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63 Howard Chu of Symas Corporation <http://www.symas.com>
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67LMDB 0.9.17 2015/09/30 MDB_LOAD(1)