<para>

The log format for logical replication conflicts is as follows:

<synopsis>

LOG: conflict detected on relation "<replaceable>schemaname</replaceable>.<replaceable>tablename</replaceable>": conflict=<replaceable>conflict_type</replaceable>

DETAIL: <replaceable class="parameter">detailed_explanation</replaceable>.

{<replaceable class="parameter">detail_values</replaceable> [; ... ]}.

<phrase>where <replaceable class="parameter">detail_values</replaceable> is one of:</phrase>

<literal>Key</literal> (<replaceable>column_name</replaceable> <optional>, ...</optional>)=(<replaceable>column_value</replaceable> <optional>, ...</optional>)

<literal>existing local tuple</literal> <optional>(<replaceable>column_name</replaceable> <optional>, ...</optional>)=</optional>(<replaceable>column_value</replaceable> <optional>, ...</optional>)

<literal>remote tuple</literal> <optional>(<replaceable>column_name</replaceable> <optional>, ...</optional>)=</optional>(<replaceable>column_value</replaceable> <optional>, ...</optional>)

<literal>replica identity</literal> {(<replaceable>column_name</replaceable> <optional>, ...</optional>)=(<replaceable>column_value</replaceable> <optional>, ...</optional>) | full <optional>(<replaceable>column_name</replaceable> <optional>, ...</optional>)=</optional>(<replaceable>column_value</replaceable> <optional>, ...</optional>)}

</synopsis>

The log provides the following information:

<variablelist>

<varlistentry>

<term><literal>LOG</literal></term>

<listitem>

<itemizedlist>

<listitem>

<para>

<replaceable>schemaname</replaceable>.<replaceable>tablename</replaceable>

identifies the local relation involved in the conflict.

</para>

</listitem>

<listitem>

<para>

<replaceable>conflict_type</replaceable> is the type of conflict that occurred

(e.g., <literal>insert_exists</literal>, <literal>update_exists</literal>).

</para>

</listitem>

</itemizedlist>

</listitem>

</varlistentry>

<varlistentry>

<term><literal>DETAIL</literal></term>

<listitem>

<itemizedlist>

<listitem>

<para>

<replaceable class="parameter">detailed_explanation</replaceable> includes

the origin, transaction ID, and commit timestamp of the transaction that

modified the existing local tuple, if available.

</para>

</listitem>

<listitem>

<para>

The <literal>Key</literal> section includes the key values of the local

tuple that violated a unique constraint for

<literal>insert_exists</literal> or <literal>update_exists</literal>

conflicts.

</para>

</listitem>

<listitem>

<para>

The <literal>existing local tuple</literal> section includes the local

tuple if its origin differs from the remote tuple for

<literal>update_differ</literal> or <literal>delete_differ</literal>

conflicts, or if the key value conflicts with the remote tuple for

<literal>insert_exists</literal> or <literal>update_exists</literal>

conflicts.

</para>

</listitem>

<listitem>

<para>

The <literal>remote tuple</literal> section includes the new tuple from

the remote insert or update operation that caused the conflict. Note that

for an update operation, the column value of the new tuple will be null

if the value is unchanged and toasted.

</para>

</listitem>

<listitem>

<para>

The <literal>replica identity</literal> section includes the replica

identity key values that were used to search for the existing local

tuple to be updated or deleted. This may include the full tuple value

if the local relation is marked with

<link linkend="sql-altertable-replica-identity-full"><literal>REPLICA IDENTITY FULL</literal></link>.

</para>

</listitem>

<listitem>

<para>

<replaceable class="parameter">column_name</replaceable> is the column name.

For <literal>existing local tuple</literal>, <literal>remote tuple</literal>,

and <literal>replica identity full</literal> cases, column names are

logged only if the user lacks the privilege to access all columns of

the table. If column names are present, they appear in the same order

as the corresponding column values.

</para>

</listitem>

<listitem>

<para>

<replaceable class="parameter">column_value</replaceable> is the column value.

The large column values are truncated to 64 bytes.

</para>

</listitem>

</itemizedlist>

</listitem>

</varlistentry>

</variablelist>

</para>