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MDB_LOAD(1) General Commands Manual MDB_LOAD(1) NAME mdb_load - LMDB environment import tool SYNOPSIS mdb_load [-V] [-a] [-f file] [-n] [-s subdb] [-N] [-Q] [-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. -a Append all records in the order they appear in the input. The input is assumed to already be in correctly sorted order and no sorting or checking for redundant values will be performed. This option must be used to reload data that was produced by running mdb_dump on a database that uses custom compare functions. -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 exist- ing database; just skip them. -Q Quick mode, uses MDB_NOSYNC for faster loading. Forces sync with mdb_env_sync() before exiting. -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 sec- ond line of the pair is its corresponding data item. A simple escape mechanism, where newline and backslash (\) charac- ters 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 char- acter precedes another backslash character, the pair will be inter- preted 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. SEE ALSO mdb_dump(1) AUTHOR Howard Chu of Symas Corporation <http://www.symas.com> LMDB 0.9.17 2015/09/30 MDB_LOAD(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | DIAGNOSTICS | SEE ALSO | AUTHOR
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