Changes

is returned for the following two types of queries:

'私は本を書いた' contains text '書く' using stemming using language 'ja'

'私は本を書く' contains text '書いた' using stemming using language 'ja'

=Wildcards=

queries both return <code>true</code>:

'芥川龍之介' contains text '.之介' using wildcards using language 'ja'

'芥川竜之介' contains text '.之介' using wildcards using language 'ja'

However, there is a special case that requires attention. The following

query will yield <code>false</code>:

'芥川龍之介' contains text '芥川.之介' using wildcards using language 'ja'

This is because the next word boundary metacharacters

an additional whitespaces as word boundary:

'芥川龍之介' contains text '芥川　.之介' using wildcards using language 'ja'

As an alternative, you may modify the query as follows:

'芥川龍之介' contains text '芥川' ftand '.之介' using wildcards using language 'ja'