Ubuntu Manpage: mdb_load - LMDB environment import tool

NAME

       mdb_load - LMDB environment import tool

SYNOPSIS

       mdb_load [-V] [-f file] [-n] [-s subdb] [-N] [-T]  envpath

DESCRIPTION

       The mdb_load utility reads from the standard input and loads it into the LMDB environment envpath.

       The  input  to mdb_load must be in the output format specified by the mdb_dump(1) utility or as specified
       by the -T option below.

OPTIONS

-V Write the library version number to the standard output, and exit.

-f file
Read from the specified file instead of from the standard input.

-n Load an LMDB database which does not use subdirectories.

-s subdb
Load a specific subdatabase. If no database is specified, data is loaded into the main database.

-N Don't overwrite existing records when loading into an already existing database; just skip them.

-T Load data from simple text files. The input must be paired lines of text, where the first line of
the pair is the key item, and the second line of the pair is its corresponding data item.

A simple escape mechanism, where newline and backslash (\) characters are special, is applied to
the text input. Newline characters are interpreted as record separators. Backslash characters in
the text will be interpreted in one of two ways: If the backslash character precedes another
backslash character, the pair will be interpreted as a literal backslash. If the backslash
character precedes any other character, the two characters following the backslash will be
interpreted as a hexadecimal specification of a single character; for example, \0a is a newline
character in the ASCII character set.

For this reason, any backslash or newline characters that naturally occur in the text input must
be escaped to avoid misinterpretation by mdb_load.

DIAGNOSTICS

       Exit status is zero if no errors occur.  Errors result in a non-zero exit status and a diagnostic message
       being written to standard error.

AUTHOR