3905 2006-10-31 22:31:01 +0000 [FT] Allow negative weights 2007-01-04 19:53:30 +0000 1 1 1 Unclassified XPath / XQuery / XSLT Full Text 1.0 Working drafts PC Windows XP CLOSED FIXED P2 normal --- 3743 1 holstege jim.melton public-qt-comments oldest_to_newest 12697 0 holstege 2006-10-31 22:31:01 +0000 Allow for weights to be negative. 13351 1 jim.melton 2007-01-04 19:51:34 +0000 There is a new conformance subsection and the addition of the words "absolute value" in section 2.3.1 bullet 3 and a small cleanup to make the bullets consistent ---- 2.3.1 Using Weights Within a Scored FTContainsExpr [Definition: Scoring may be influenced by adding weight declarations to search tokens, phrases, and expressions.] Syntactically weight declarations are introduced in the FTSelection production, described in FTSelections. for $b in /books/book let score $s := $b/content ftcontains ("web site" weight 0.2) && ("usability" weight 0.8) return <result score="{$s}">{$b}</result> The effect of weights on the result score is implementation-dependent. However, weight declarations must follow all these rules: 1. Weights in an FTContainsExpr are significant only in relation to each other. 2. When no explicit weight is specified, the default weight is 1.0. 3. The weight must have an absolute value between 0.0 and 1000.0 inclusive. Weight declarations in an FTContainsExpr for which no scores are evaluated are ignored. --- (New) 5.2.14 Weights An implementation may constrain the range of valid weights to non-negative values. If an implementation does enforce this restriction and encounters a full-text query that used a negative weight, it MUST raise an error [err:XXXTBD]. 13352 2 jim.melton 2007-01-04 19:53:30 +0000 Because you were present when the decision was made to resolve this bug, and (indeed) you wrote the changes, we presume that you accept the resolution and are thus closing the bug.