$dbh->{CachedKids} = {}; # after ANALYZE or similar

# from the example
$dbh->prepare_cached('select "hello" from a');
print Dump $dbh->{CachedKids},"\n";
$dbh->{CachedKids} = {};
$dbh->do("analyze");
my $sth = $dbh->prepare_cached('select "hello" from a');
print "got ", $dbh->selectrow_array($sth), "\n";

##</code><code>##

 T  <- prepare_cached('SELECT me.id
FROM   step me
WHERE  ( me.message = ? )  
' undef ...)= DBIx::ContextualFetch::st=HASH(0x8e09f38) at DBI.pm line 381
 T  <- FETCH('Active')= '' at DBI.pm line 1139
 T  <- FETCH('Taint')= 1 at ContextualFetch.pm line 50
    <- STORE('Taint' 0)= 1 at ContextualFetch.pm line 51
    !! ERROR: 1 'database schema has changed(1) at dbdimp.c line 421' (err#0)
    <- execute('Removing duplicates')= undef at ContextualFetch.pm line 52
       ERROR: 1 'database schema has changed(1) at dbdimp.c line 421' (err#0)
    <> FETCH('Statement')= 'SELECT me.id
FROM   step me
WHERE  ( me.message = ? )  
' ('Statement' from cache) at DBI.pm line 1143
Val::Step can't SELECT me.id
FROM   step me
WHERE  ( me.message = ? )  
: DBD::SQLite::st execute failed: database schema has changed(1) at dbdimp.c line 421 [for Statement "SELECT me.id
FROM   step me
WHERE  ( me.message = ? )  
"] at /usr/share/perl5/DBIx/ContextualFetch.pm line 52.
 at bin/validate.pl line 196