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Commit61abff1

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doc: use simpler language for NULL return from ANY/ALL
Previously the combination of "does not return" and "any row" causedambiguity.Reported-by: KES <kes-kes@yandex.ru>Discussion:https://postgr.es/m/153701242703.22334.1476830122267077397@wrigleys.postgresql.orgReviewed-by: David G. JohnstonBackpatch-through: 9.3
1 parent0446551 commit61abff1

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‎doc/src/sgml/func.sgml

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -15192,7 +15192,7 @@ WHERE EXISTS (SELECT 1 FROM tab2 WHERE col2 = tab1.col2);
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The result is <quote>false</quote> if the comparison returns false for every
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subquery row (including the case where the subquery returns no
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rows).
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The result is NULL ifthe comparisondoes not return true for any row,
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The result is NULL ifno comparisonwith a subquery row returns true,
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and it returns NULL for at least one row.
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</para>
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@@ -15218,7 +15218,7 @@ WHERE EXISTS (SELECT 1 FROM tab2 WHERE col2 = tab1.col2);
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The result of <token>ALL</token> is <quote>true</quote> if all rows yield true
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(including the case where the subquery returns no rows).
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The result is <quote>false</quote> if any false result is found.
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The result is NULL ifthe comparisondoes not return false for any row,
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The result is NULL ifno comparisonwith a subquery row returns false,
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and it returns NULL for at least one row.
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</para>
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@@ -15248,8 +15248,8 @@ WHERE EXISTS (SELECT 1 FROM tab2 WHERE col2 = tab1.col2);
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case where the subquery returns no rows).
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The result is <quote>false</quote> if the comparison returns false for any
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subquery row.
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The result is NULL ifthe comparisondoes not return false for any
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subquery row,and it returns NULL for at least one row.
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The result is NULL ifno comparisonwith a subquery row returns false,
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and it returns NULL for at least one row.
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</para>
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<para>

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