Correct TABLESAMPLE docs
Revert to original use of word “sample”, though with clarification, per Tom Lane. Discussion: 29052.1471015383@sss.pgh.pa.us
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@ -391,7 +391,7 @@ TABLE [ ONLY ] <replaceable class="parameter">table_name</replaceable> [ * ]
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not been changed meanwhile. But different seed values will usually
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produce different samples.
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If <literal>REPEATABLE</literal> is not given then a new random
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seed is selected for each query.
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sample is selected for each query, based upon a system-generated seed.
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Note that some add-on sampling methods do not
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accept <literal>REPEATABLE</literal>, and will always produce new
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samples on each use.
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