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Commitdb01f79

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Fix interaction of log_line_prefix's query_id and log_statement
log_statement is issued before query_id can be computed, so properlyclear the value, and document the interaction.Reported-by: Fujii Masao, Michael PaquierDiscussion:https://postgr.es/m/YHPkU8hFi4no4NSw@paquier.xyzAuthor: Julien Rouhaud
1 parent9660834 commitdb01f79

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‎doc/src/sgml/config.sgml

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@@ -7139,6 +7139,16 @@ log_line_prefix = '%m [%p] %q%u@%d/%a '
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</programlisting>
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</para>
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</tip>
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<note>
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<para>
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The <literal>%Q</literal> escape always reports a zero identifier
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for lines output by <xref linkend="guc-log-statement"/> because
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<varname>log_statement</varname> generates output before an
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identifier can be calculated, including invalid statements for
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which an identifier cannot be calculated.
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</para>
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</note>
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</listitem>
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</varlistentry>
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‎src/backend/utils/activity/backend_status.c

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@@ -398,6 +398,7 @@ pgstat_bestart(void)
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lbeentry.st_state=STATE_UNDEFINED;
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lbeentry.st_progress_command=PROGRESS_COMMAND_INVALID;
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lbeentry.st_progress_command_target=InvalidOid;
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lbeentry.st_query_id=UINT64CONST(0);
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/*
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* we don't zero st_progress_param here to save cycles; nobody should

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