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Commitff33d14

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Spellcheck: s/descendent/descendant/g
I got a little annoyed by reading documentation paragraphs containingboth spellings within a few lines of each other. My dictionary says"descendant" is the preferred spelling, and it's certainly the majorityusage in our tree, so standardize on that.For one usage in parallel.sgml, I thought it better to rewrite to avoidthe term altogether.
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‎doc/src/sgml/parallel.sgml

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@@ -47,8 +47,8 @@ EXPLAIN SELECT * FROM pgbench_accounts WHERE filler LIKE '%x%';
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child plan, which is the portion of the plan that will be executed in
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parallel. If the <literal>Gather</> node is at the very top of the plan
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tree, then the entire query will execute in parallel. If it is somewhere
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else in the plan tree, then onlythat portion of thequerywill run in
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parallel. In the example above, the query accesses only one table, so
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else in the plan tree, then onlythe portion of theplan below itwill run
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inparallel. In the example above, the query accesses only one table, so
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there is only one plan node other than the <literal>Gather</> node itself;
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since that plan node is a child of the <literal>Gather</> node, it will
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run in parallel.
@@ -76,8 +76,8 @@ EXPLAIN SELECT * FROM pgbench_accounts WHERE filler LIKE '%x%';
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<para>
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Every background worker process which is successfully started for a given
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parallel query will execute the portion of the planwhich is a descendent
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ofthe <literal>Gather</> node. The leader will also execute that portion
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parallel query will execute the portion of the planbelow
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the <literal>Gather</> node. The leader will also execute that portion
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of the plan, but it has an additional responsibility: it must also read
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all of the tuples generated by the workers. When the parallel portion of
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the plan generates only a small number of tuples, the leader will often

‎doc/src/sgml/queries.sgml

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@@ -146,7 +146,7 @@ FROM <replaceable>table_reference</replaceable> <optional>, <replaceable>table_r
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Instead of writing <literal>ONLY</> before the table name, you can write
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<literal>*</> after the table name to explicitly specify that descendant
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tables are included. There is no real reason to use this syntax any more,
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because searchingdescendent tables is now always the default behavior.
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because searchingdescendant tables is now always the default behavior.
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However, it is supported for compatibility with older releases.
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</para>
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‎doc/src/sgml/ref/alter_table.sgml

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@@ -1116,11 +1116,11 @@ ALTER TABLE [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable>
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rename, or change the type of a column in the parent table without doing
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same to the descendants. This ensures that the descendants always have
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columns matching the parent. Similarly, a constraint cannot be renamed
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in the parent without also renaming it in alldescendents, so that
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constraints also match between the parent and itsdescendents.
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Also, because selecting from the parent also selects from itsdescendents,
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in the parent without also renaming it in alldescendants, so that
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constraints also match between the parent and itsdescendants.
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Also, because selecting from the parent also selects from itsdescendants,
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a constraint on the parent cannot be marked valid unless it is also marked
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valid for thosedescendents. In all of these cases, <command>ALTER TABLE
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valid for thosedescendants. In all of these cases, <command>ALTER TABLE
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ONLY</command> will be rejected.
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</para>
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‎src/backend/executor/execParallel.c

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@@ -518,7 +518,7 @@ ExecInitParallelPlan(PlanState *planstate, EState *estate, int nworkers)
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}
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/*
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* Copy instrumentation information about this node and itsdescendents from
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* Copy instrumentation information about this node and itsdescendants from
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* dynamic shared memory.
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*/
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staticbool
@@ -666,7 +666,7 @@ ExecParallelGetQueryDesc(shm_toc *toc, DestReceiver *receiver,
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}
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/*
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* Copy instrumentation information from this node and itsdescendents into
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* Copy instrumentation information from this node and itsdescendants into
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* dynamic shared memory, so that the parallel leader can retrieve it.
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*/
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staticbool
@@ -706,7 +706,7 @@ ExecParallelReportInstrumentation(PlanState *planstate,
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}
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/*
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* Initialize the PlanState and itsdescendents with the information
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* Initialize the PlanState and itsdescendants with the information
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* retrieved from shared memory. This has to be done once the PlanState
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* is allocated and initialized by executor; that is, after ExecutorStart().
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*/

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