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Improve wording in pg_dump compression docs 

A couple minor corrections in pg_dump comments and docs, related to the
recently introduced compression API.

Reported-by: Justin Pryzby
Discussion: https://postgr.es/m/20230227044910.GO1653@telsasoft.com
This commit is contained in:
Tomas Vondra 2023-03-01 16:08:33 +01:00
parent 34ce114374
commit 6095069b40
3 changed files with 6 additions and 6 deletions
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6
doc/src/sgml/ref/pg_dump.sgml
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@ -331,7 +331,7 @@ PostgreSQL documentation
can read. A directory format archive can be manipulated with can read. A directory format archive can be manipulated with
standard Unix tools; for example, files in an uncompressed archive standard Unix tools; for example, files in an uncompressed archive
can be compressed with the <application>gzip</application> or can be compressed with the <application>gzip</application> or
<application>lz4</application>tool. <application>lz4</application> tools.
This format is compressed by default using <literal>gzip</literal> This format is compressed by default using <literal>gzip</literal>
and also supports parallel dumps. and also supports parallel dumps.
</para> </para>
@ -654,8 +654,8 @@ PostgreSQL documentation
<listitem> <listitem>
<para> <para>
Specify the compression method and/or the compression level to use. Specify the compression method and/or the compression level to use.
The compression method can be set to <literal>gzip</literal> or The compression method can be set to <literal>gzip</literal>,
<literal>lz4</literal> or <literal>none</literal> for no compression. <literal>lz4</literal>, or <literal>none</literal> for no compression.
A compression detail string can optionally be specified. If the A compression detail string can optionally be specified. If the
detail string is an integer, it specifies the compression level. detail string is an integer, it specifies the compression level.
Otherwise, it should be a comma-separated list of items, each of the Otherwise, it should be a comma-separated list of items, each of the

2
src/bin/pg_dump/compress_io.h
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@ -172,7 +172,7 @@ struct CompressFileHandle
extern CompressFileHandle *InitCompressFileHandle(const pg_compress_specification compression_spec); extern CompressFileHandle *InitCompressFileHandle(const pg_compress_specification compression_spec);
/* /*
* Initialize a compress file stream. Deffer the compression algorithm * Initialize a compress file stream. Infer the compression algorithm
* from 'path', either by examining its suffix or by appending the supported * from 'path', either by examining its suffix or by appending the supported
* suffixes in 'path'. * suffixes in 'path'.
*/ */

4
src/bin/pg_dump/compress_lz4.c
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@ -161,8 +161,8 @@ typedef struct LZ4File
} LZ4File; } LZ4File;
/* /*
* LZ4 equivalent to feof() or gzeof(). The end of file is reached if there * LZ4 equivalent to feof() or gzeof(). Return true iff there is no
* is no decompressed output in the overflow buffer and the end of the file * decompressed output in the overflow buffer and the end of the backing file
* is reached. * is reached.
*/ */
static int static int