aboutsummaryrefslogtreecommitdiff
path: root/doc/src
diff options
context:
space:
mode:
Diffstat (limited to 'doc/src')
-rw-r--r--doc/src/sgml/monitoring.sgml7
-rw-r--r--doc/src/sgml/parallel.sgml17
2 files changed, 6 insertions, 18 deletions
diff --git a/doc/src/sgml/monitoring.sgml b/doc/src/sgml/monitoring.sgml
index 60b89356f70..ac2721c8ad7 100644
--- a/doc/src/sgml/monitoring.sgml
+++ b/doc/src/sgml/monitoring.sgml
@@ -861,7 +861,7 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<tbody>
<row>
- <entry morerows="63"><literal>LWLock</literal></entry>
+ <entry morerows="64"><literal>LWLock</literal></entry>
<entry><literal>ShmemIndexLock</literal></entry>
<entry>Waiting to find or allocate space in shared memory.</entry>
</row>
@@ -1122,6 +1122,11 @@ postgres 27093 0.0 0.0 30096 2752 ? Ss 11:34 0:00 postgres: ser
<entry>Waiting to add or examine predicate lock information.</entry>
</row>
<row>
+ <entry><literal>serializable_xact</literal></entry>
+ <entry>Waiting to perform an operation on a serializable transaction
+ in a parallel query.</entry>
+ </row>
+ <row>
<entry><literal>parallel_query_dsa</literal></entry>
<entry>Waiting for parallel query dynamic shared memory allocation lock.</entry>
</row>
diff --git a/doc/src/sgml/parallel.sgml b/doc/src/sgml/parallel.sgml
index 1005e9fef4d..b0b03c54e5f 100644
--- a/doc/src/sgml/parallel.sgml
+++ b/doc/src/sgml/parallel.sgml
@@ -184,13 +184,6 @@ EXPLAIN SELECT * FROM pgbench_accounts WHERE filler LIKE '%x%';
using a very large number of processes.
</para>
</listitem>
-
- <listitem>
- <para>
- The transaction isolation level is serializable. This is
- a limitation of the current implementation.
- </para>
- </listitem>
</itemizedlist>
<para>
@@ -233,16 +226,6 @@ EXPLAIN SELECT * FROM pgbench_accounts WHERE filler LIKE '%x%';
that may be suboptimal when run serially.
</para>
</listitem>
-
- <listitem>
- <para>
- The transaction isolation level is serializable. This situation
- does not normally arise, because parallel query plans are not
- generated when the transaction isolation level is serializable.
- However, it can happen if the transaction isolation level is changed to
- serializable after the plan is generated and before it is executed.
- </para>
- </listitem>
</itemizedlist>
</sect1>