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Commit76beb79

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in the tutorial, chapter 2., "Relational Data Model Formalities"
(sql490.htm), there is"set of all k-tuples v1, v2, ... vk, such that v1 [isin] D1, v1 [isin] D1"i assume it should be"set of all k-tuples v1, v2, ... vk, such that v1 [isin] D1, v2 [isin] D2"Divide by Zero
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‎doc/src/sgml/sql.sgml‎

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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/sql.sgml,v 1.17 2001/01/09 16:05:21 momjian Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/sql.sgml,v 1.18 2001/01/2705:07:28 momjian Exp $
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-->
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<chapter id="sql">
@@ -235,8 +235,8 @@ D_{1}, v_{2} \in D_{2}, \ldots, v_{k} \in D_{k}$}.
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such that
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<parameter>v<subscript>1</subscript></parameter> &isin;
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<parameter>D<subscript>1</subscript></parameter>,
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<parameter>v<subscript>1</subscript></parameter> &isin;
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<parameter>D<subscript>1</subscript></parameter>,
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<parameter>v<subscript>2</subscript></parameter> &isin;
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<parameter>D<subscript>2</subscript></parameter>,
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...
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<parameter>v<subscript>k</subscript></parameter> &isin;
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<parameter>D<subscript>k</subscript></parameter>.

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