libmdbx/src/man1/mdbx_drop.1

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.\" Copyright 2021-2022 Leonid Yuriev <leo@yuriev.ru>.
.\" Copyright 2014-2021 Howard Chu, Symas Corp. All Rights Reserved.
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
mdbx: release v0.11.7 The stable risen release after the Github's intentional malicious disaster. We have migrated to a reliable trusted infrastructure ----------------------------------------------------- The origin for now is at [GitFlic](https://gitflic.ru/project/erthink/libmdbx) since on 2022-04-15 the Github administration, without any warning nor explanation, deleted _libmdbx_ along with a lot of other projects, simultaneously blocking access for many developers. For the same reason ~~Github~~ is blacklisted forever. GitFlic already support Russian and English languages, plan to support more, including 和 中文. You are welcome! New: ---- - Added the `tools-static` make target to build statically linked MDBX tools. - Support for Microsoft Visual Studio 2022. - Support build by MinGW' make from command line without CMake. - Added `mdbx::filesystem` C++ API namespace that corresponds to `std::filesystem` or `std::experimental::filesystem`. - Created [website](https://libmdbx.website.yandexcloud.net/) for online auto-generated documentation. - Used `todo4recovery://erased_by_github/` for dead (or temporarily lost) resources deleted by ~~Github~~. - Added `--loglevel=` command-line option to the `mdbx_test` tool. - Added few fast smoke-like tests into CMake builds. Fixes: ------ - Fixed a race between starting a transaction and creating a DBI descriptor that could lead to `SIGSEGV` in the cursor tracking code. - Clarified description of `MDBX_EPERM` error returned from `mdbx_env_set_geometry()`. - Fixed non-promoting the parent transaction to be dirty in case the undo of the geometry update failed during abortion of a nested transaction. - Resolved linking issues with `libstdc++fs`/`libc++fs`/`libc++experimental` for C++ `std::filesystem` or `std::experimental::filesystem` for legacy compilers. - Added workaround for GNU Make 3.81 and earlier. - Added workaround for Elbrus/LCC 1.25 compiler bug of class inline `static constexpr` member field. - [Fixed](https://github.com/ledgerwatch/erigon/issues/3874) minor assertion regression (only debug builds were affected). - Fixed detection of `C++20` concepts accessibility. - Fixed detection of Clang's LTO availability for Android. - Fixed build for ARM/ARM64 by MSVC. - Fixed non-x86 Windows builds with `MDBX_WITHOUT_MSVC_CRT=ON` and `MDBX_BUILD_SHARED_LIBRARY=ON`. Minors: ------- - Resolve minor MSVC warnings: avoid `/INCREMENTAL[:YES]` with `/LTCG`, `/W4` with `/W3`, the `C5105` warning. - Switched to using `MDBX_EPERM` instead of `MDBX_RESULT_TRUE' to indicate that the geometry cannot be updated. - Added `NULL` checking during memory allocation inside `mdbx_chk`. - Resolved all warnings from MinGW while used without CMake. - Added inheretable `target_include_directories()` to `CMakeLists.txt` for easy integration. - Added build-time checks and paranoid runtime assertions for the `off_t` arguments of `fcntl()` which are used for locking. - Added `-Wno-lto-type-mismatch` to avoid false-positive warnings from old GCC during LTO-enabled builds. - Added checking for TID (system thread id) to avoid hang on 32-bit Bionic/Android within `pthread_mutex_lock()`. - Reworked `MDBX_BUILD_TARGET` of CMake builds. - Added `CMAKE_HOST_ARCH` and `CMAKE_HOST_CAN_RUN_EXECUTABLES_BUILT_FOR_TARGET`. Signed-off-by: Леонид Юрьев (Leonid Yuriev) <leo@yuriev.ru>
2022-04-22 23:28:56 +03:00
.TH MDBX_DROP 1 "2022-04-22" "MDBX 0.11.7"
.SH NAME
mdbx_drop \- MDBX database delete tool
.SH SYNOPSIS
.B mdbx_drop
[\c
.BR \-V ]
[\c
.BR \-d ]
[\c
.BI \-s \ subdb\fR]
[\c
.BR \-n ]
.BR \ dbpath
.SH DESCRIPTION
The
.B mdbx_drop
utility empties or deletes a database in the specified
environment.
.SH OPTIONS
.TP
.BR \-V
Write the library version number to the standard output, and exit.
.TP
.BR \-d
Delete the specified database, don't just empty it.
.TP
.BR \-s \ subdb
Operate on a specific subdatabase. If no database is specified, only the main database is dropped.
.TP
.BR \-n
Dump an MDBX database which does not use subdirectories.
This is legacy option. For now MDBX handles this automatically.
.SH 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.
.SH "SEE ALSO"
.BR mdbx_load (1),
.BR mdbx_copy (1),
.BR mdbx_chk (1),
.BR mdbx_stat (1)
.SH AUTHOR
Howard Chu of Symas Corporation <http://www.symas.com>