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Commit3ef18a9

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doc: Fix descriptions related to the handling of non-ASCII characters
Since45b1a67, non-printable ASCII characters do not show up invarious configuration paths as question marks, but as hexadecimalescapes. The documentation was not updated to reflect that.Author: Hayato KurodaReviewed-by: Jian He, Tom Lane, Karl O. Pinc, Peter SmithDiscussion:https://postgr.es/m/TYAPR01MB586631D0961BF9C44893FAB1F523A@TYAPR01MB5866.jpnprd01.prod.outlook.comBackpatch-through: 16
1 parent714780d commit3ef18a9

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‎doc/src/sgml/config.sgml

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@@ -6893,8 +6893,9 @@ local0.* /var/log/postgresql
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and included in CSV log entries. It can also be included in regular
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log entries via the <xref linkend="guc-log-line-prefix"/> parameter.
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Only printable ASCII characters may be used in the
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<varname>application_name</varname> value. Other characters will be
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replaced with question marks (<literal>?</literal>).
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<varname>application_name</varname> value.
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Other characters are replaced with <link
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linkend="sql-syntax-strings-escape">C-style hexadecimal escapes</link>.
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</para>
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</listitem>
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</varlistentry>
@@ -7890,10 +7891,12 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
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The name can be any string of less
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than <symbol>NAMEDATALEN</symbol> characters (64 characters in a standard
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build). Only printable ASCII characters may be used in the
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<varname>cluster_name</varname> value. Other characters will be
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replaced with question marks (<literal>?</literal>). No name is shown
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if this parameter is set to the empty string <literal>''</literal> (which is
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the default). This parameter can only be set at server start.
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<varname>cluster_name</varname> value.
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Other characters are replaced with <link
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linkend="sql-syntax-strings-escape">C-style hexadecimal escapes</link>.
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No name is shown if this parameter is set to the empty string
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<literal>''</literal> (which is the default).
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This parameter can only be set at server start.
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</para>
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</listitem>
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</varlistentry>

‎doc/src/sgml/postgres-fdw.sgml

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -1067,9 +1067,9 @@ postgres=# SELECT postgres_fdw_disconnect_all();
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of any length and contain even non-ASCII characters. However when
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it's passed to and used as <varname>application_name</varname>
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in a foreign server, note that it will be truncated to less than
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<symbol>NAMEDATALEN</symbol> characters and anything other than
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printable ASCII characterswill bereplaced withquestion
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marks (<literal>?</literal>).
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<symbol>NAMEDATALEN</symbol> characters.
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Anything other thanprintable ASCII charactersarereplaced with<link
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linkend="sql-syntax-strings-escape">C-style hexadecimal escapes</link>.
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See <xref linkend="guc-application-name"/> for details.
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</para>
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