28.01.2013 Views

SAP HANA Developer Guide - Get a Free Blog

SAP HANA Developer Guide - Get a Free Blog

SAP HANA Developer Guide - Get a Free Blog

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

termMappingTable/<br />

ListId<br />

stopwordTable/<br />

ListId<br />

FUZZY-Double-like<br />

search on TEXT<br />

Full-text search on<br />

TEXT<br />

<strong>Free</strong>style full-text<br />

search<br />

YES YES YES NO<br />

YES NO NO NO<br />

andThreshold YES NO NO NO<br />

andSymmetric YES NO NO NO<br />

bestMatchingToken<br />

Weight<br />

considerNonMatchin<br />

gTokens<br />

YES NO NO NO<br />

YES NO NO NO<br />

minTextScore YES NO NO NO<br />

Rank Calculation fuzzy score IDF IDF (TEXT) or fuzzy<br />

Legend<br />

YES - The parameter is allowed.<br />

score (other types)<br />

NO - The parameter is not allowed and an error message is returned if the user sets this option.<br />

Search on types<br />

other than TEXT<br />

types are not<br />

supported.)<br />

fuzzy score<br />

ignored - The parameter is ignored and no error message is returned to the user. This is necessary because the<br />

freestyler passes all search options to the generated search on single columns.<br />

Rank calculation<br />

When 'fulltext' is specified, the search is done using IDF or specialOrRanking (depending on the search flags). The<br />

fuzzy score is not calculated.<br />

When 'compare' is specified, the fuzzy score is calculated using bestMatchingTokenWeight and<br />

considerNonMatchingTokens. The user does not have to set these options. In this case, the default values are<br />

used.<br />

290<br />

P U B L I C<br />

© 2012 <strong>SAP</strong> AG. All rights reserved.<br />

<strong>SAP</strong> <strong>HANA</strong> <strong>Developer</strong> <strong>Guide</strong><br />

Enabling Search

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!