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doc: Fix grammatical error in partitioning docs
Reported-by: Amit Langote Discussion: https://postgr.es/m/CA+HiwqGZFkKi0TkBGYpr2_5qrRAbHZoP47AP1BRLUOUkfQdy_A@mail.gmail.com Backpatch-through: 10
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doc/src/sgml/ddl.sgml

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@@ -3982,15 +3982,15 @@ EXPLAIN SELECT count(*) FROM measurement WHERE logdate >= DATE '2008-01-01';
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<para>
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It is also important to consider the overhead of partitioning during
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query planning and execution. The query planner is generally able to
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handle partition hierarchies up a few hundred partitions. Planning times
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become longer and memory consumption becomes higher as more partitions are
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added. This is particularly true for the <command>UPDATE</command> and
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<command>DELETE</command> commands. Another reason to be concerned about
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having a large number of partitions is that the server's memory
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consumption may grow significantly over a period of time, especially if
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many sessions touch large numbers of partitions. That's because each
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partition requires its metadata to be loaded into the local memory of
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each session that touches it.
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handle partition hierarchies with up to a few hundred partitions.
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Planning times become longer and memory consumption becomes higher as more
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partitions are added. This is particularly true for the
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<command>UPDATE</command> and <command>DELETE</command> commands. Another
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reason to be concerned about having a large number of partitions is that
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the server's memory consumption may grow significantly over a period of
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time, especially if many sessions touch large numbers of partitions.
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That's because each partition requires its metadata to be loaded into the
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local memory of each session that touches it.
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</para>
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<para>

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