Error - DRG-51030: wildcard query expansion resulted in too many terms

Question

Hi All,
My searches against a 100 million company names table on org names often result in the following error:
DRG-51030: wildcard query expansion resulted in too many terms
A sample query would be:
select v.* --xref.external_ref_party_id,v.*
from xxx_org_search_x_v vwhere 1 =1
and state_province = 'PA'
and country = 'US'
and city = 'BRYN MAWR'
and catsearch(org_name,'BRYN MAWR AUTO*','CITY=''BRYN MAWR''' ) > 0
I understand that is caused by the presence of the word Auto to which we append a * . (If i remove the auto the search works fine).
My question is - is there a way to limit the query expansion to only , say 100, results that get returned from the index?

Answer 1

Thanks for the reply. This is how the preferences are set:
exec ctx_ddl.create_preference('STEM_FUZZY_PREF', 'BASIC_WORDLIST');
exec ctx_ddl.set_attribute('STEM_FUZZY_PREF','FUZZY_MATCH','AUTO');
exec ctx_ddl.set_attribute('STEM_FUZZY_PREF','FUZZY_SCORE','60');
exec ctx_ddl.set_attribute('STEM_FUZZY_PREF','FUZZY_NUMRESULTS','100');
exec ctx_ddl.set_attribute('STEM_FUZZY_PREF','STEMMER','AUTO');
exec ctx_ddl.set_attribute('STEM_FUZZY_PREF', 'wildcard_maxterms',15000) ;
exec ctx_ddl.create_preference('LEXTER_PREF', 'BASIC_LEXER');
exec ctx_ddl.set_attribute('LEXTER_PREF','index_stems', 'ENGLISH');
exec ctx_ddl.set_attribute('LEXTER_PREF','skipjoins',',''."+-/&');
exec ctx_ddl.create_preference('xxx_EXT_REF_SEARCH_CTX_PREF', 'BASIC_STORAGE');
exec ctx_ddl.set_attribute('xxx_EXT_REF_SEARCH_CTX_PREF', 'I_TABLE_CLAUSE','tablespace ICV_TS_CTX_IDX');
exec ctx_ddl.set_attribute('xxx_EXT_REF_SEARCH_CTX_PREF', 'K_TABLE_CLAUSE','tablespace ICV_TS_CTX_IDX');
exec ctx_ddl.set_attribute('xxx_EXT_REF_SEARCH_CTX_PREF', 'N_TABLE_CLAUSE','tablespace ICV_TS_CTX_IDX');
exec ctx_ddl.set_attribute('xxx_EXT_REF_SEARCH_CTX_PREF', 'I_INDEX_CLAUSE','tablespace ICV_TS_CTX_IDX Compress 2');
exec ctx_ddl.set_attribute('xxx_EXT_REF_SEARCH_CTX_PREF', 'P_TABLE_CLAUSE','tablespace ICV_TS_CTX_IDX ');
exec ctx_ddl.set_attribute('xxx_EXT_REF_SEARCH_CTX_PREF', 'I_ROWID_INDEX_CLAUSE','tablespace ICV_TS_CTX_IDX ');
exec ctx_ddl.set_attribute('xxx_EXT_REF_SEARCH_CTX_PREF', 'R_TABLE_CLAUSE','tablespace ICV_TS_CTX_IDX LOB(DATA) STORE AS (CACHE) ');
exec ctx_ddl.create_index_set('xxx_m_iset');
exec ctx_ddl.add_index('xxx_m_iset','city, country');
exec ctx_ddl.add_index('xxx_m_iset','postal_code, country');
Users will always use city or postal code when searching for a name. When I run this query -
SELECT dr$token
FROM DR$XXX_EXT_REF_SEARCH_CTX_I1$I
where dr$token like 'AUTO%'
ORDER BY dr$token desc
i get more than 1M rows.
is there a way to include and search for the city name along with the org name?
Thanks again..