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     {line expr {or ISNULL NOTNULL {line NOT NULL}}}
     {line expr IS {optx NOT} expr}
     {line expr {optx NOT} BETWEEN expr AND expr}
     {line expr {optx NOT} IN 
            {or
               {line ( {or {} select-stmt {loop expr ,}} )}
               {line {optx /schema-name .} /table-name}
               {line {optx /schema-name .} /table-function
                         ( {or {toploop expr ,} {}} ) }
            }
     }
     {line {optx {optx NOT} EXISTS} ( select-stmt )}
     {line CASE {optx expr} {loop {line WHEN expr THEN expr} {}}
           {optx ELSE expr} END}
     {line raise-function}
  }

    together with an [eponymous virtual table] that provides access to the measurements.
<li>Improved algorithm for running queries with both an ORDER BY and a LIMIT where
    only the inner-most loop naturally generates rows in the correct order.
<li>Enhancements to Lemon parser generator, so that it generates a
    faster parser.
<li>The [PRAGMA compile_options] command now attempts to show the version number
    of the compiler that generated the library.
<li>Enhance [PRAGMA table_info] so that it provides information about
    [eponymous virtual tables].
<li>Added the "win32-none" VFS, analogous to the "unix-none" VFS, that works like
    the default "win32" VFS except that it ignores all file locks.
<li>The query planner uses a full scan of a [partial index] instead of a 
    full scan of the main table, in cases where that makes sense.
<li>Allow [table-valued functions] to appear on the right-hand side of an [IN operator].
}

chng {2016-05-18 (3.13.0)} {
<li>Postpone I/O associated with TEMP files for as long as possible, with the hope
    that the I/O can ultimately be avoided completely.
<li>Merged the [session] extension into trunk.
<li>Added the ".auth ON|OFF" command to the [command-line shell].

noon in Greenwich on November 24, 4714 B.C. according to the
proleptic Gregorian calendar.
<li><b>INTEGER</b> as Unix Time, the number of seconds since
1970-01-01 00:00:00 UTC.
</ul>)^

<p>Applications can chose to store dates and times in any of these
formats and freely convert between formats using the built-in
[date and time functions].</p>


<tcl>hd_fragment affinity affinity {column affinity} {type affinity} {*affinities}</tcl>
<h1>Type Affinity</h1>

<p>
In order to maximize compatibility between SQLite and other database

<h3>The IN and NOT IN operators</h3>
<p>^The IN and NOT IN operators take a single scalar operand on the
left and a vector operand on the right
formed by an explicit list of zero or more scalars or by a 
single subquery.
^When the right operand of an IN or NOT IN operator is a subquery, the
subquery must have a single result column.
^The "subquery" on the right-hand side of an IN operator can be a
table name or [table-valued function] name in which case the
subquery is understood to be "(SELECT * FROM <i>name</i>)".
^When the right operand is an empty set, the result of IN is false and the
result of NOT IN is true, regardless of the left operand and even if the
left operand is NULL.
<p>^(The result of an IN or NOT IN operator is determined by the following
matrix:

<center>
<table border=1>
<tr>
<th>Left operand <br>is NULL
<th>Right operand <br>contains NULL