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Comment:Change to requirement marks in lang.in.
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SHA1: b5882b3f8fbebb225c53d0625b66f293eb8bee50
User & Date: dan 2010-09-11 17:46:27.000
Context
2010-09-13
12:06
Added documentation on the SQLITE_4_BYTE_ALIGNED_MALLOC compile-time option. (check-in: dc93bef322 user: drh tags: trunk)
2010-09-11
17:46
Change to requirement marks in lang.in. (check-in: b5882b3f8f user: dan tags: trunk)
2010-09-10
19:11
Minor changes to lang.in. (check-in: 8efac9af2b user: dan tags: trunk)
Changes
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Changes to pages/lang.in.
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    the GROUP BY and HAVING clauses to the filtered input dataset.
</ul>

<p><b>4. Removal of duplicate rows (DISTINCT processing).</b>
<tcl>hd_fragment distinct</tcl>
<tcl>hd_keywords {DISTINCT}</tcl>

<p>^(One of the ALL or DISTINCT keywords may follow the SELECT keyword in a 
simple SELECT statement. If neither of these are present, then the behaviour
is as if ALL were specified.)^ ^If the simple SELECT is a SELECT ALL, then the
entire set of result rows are returned by the SELECT. ^If the simple SELECT

is a SELECT DISTINCT, then duplicate rows are removed from the set of result
rows before it is returned. ^For the purposes of detecting duplicate rows,
two NULL values are considered to be equal. ^The normal rules for selecting
a collation sequence to compare text values with apply.


<h3>Compound Select Statements</h3>

<p>^A compound SELECT is formed from two or more simple SELECTs connected
by one of the operators UNION, UNION ALL, INTERSECT, or EXCEPT.  ^In
a compound SELECT, all the constituent SELECTs must specify the
same number of result columns.  ^There may be only a single ORDER BY








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    the GROUP BY and HAVING clauses to the filtered input dataset.
</ul>

<p><b>4. Removal of duplicate rows (DISTINCT processing).</b>
<tcl>hd_fragment distinct</tcl>
<tcl>hd_keywords {DISTINCT}</tcl>

<p>^One of the ALL or DISTINCT keywords may follow the SELECT keyword in a 

simple SELECT statement. ^If the simple SELECT is a SELECT ALL, then the
entire set of result rows are returned by the SELECT. ^If neither ALL or
DISTINCT are present, then the behaviour is as if ALL were specified. 
^If the simple SELECT is a SELECT DISTINCT, then duplicate rows are removed
from the set of result rows before it is returned. ^For the purposes of
detecting duplicate rows, two NULL values are considered to be equal. ^The
normal rules for selecting a collation sequence to compare text values with
apply.

<h3>Compound Select Statements</h3>

<p>^A compound SELECT is formed from two or more simple SELECTs connected
by one of the operators UNION, UNION ALL, INTERSECT, or EXCEPT.  ^In
a compound SELECT, all the constituent SELECTs must specify the
same number of result columns.  ^There may be only a single ORDER BY
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