Fast Indexing
Updated: 2021-03-06
If you want to use keywords for sorting, sorting, filtering, optimization, and grouping, you need to tell the indexer to treat them specifically. This is done by quickly evaluating the content. Fast indexing is a general term for indexing techniques that provide fast access to content and enough flexibility to filter and analyze queries. Watson Explorer Engine supports two different fast indexing methods:
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Note: When fast indexing is specified, all instances of this content are stored in RAM. Therefore, you should carefully consider what elements you will measure speed to improve the performance of the search application.
Quick Indexing allows you to check the list of entries in the Quick Indexing option on the Index tab of the search and store quick indexing information in memory for quick access. This checklist quickly identifies each theme and its accessories you need. Alternatively, you can add the quick-index="type" attribute to the data points you want to use in the quick comparison.
Index Quick Index is similar to Quick Index, allowing quick comparison, but additional information is stored permanently in the search index. This improves processing time/benchmark processing time, but increases the time required to measure and evaluate storage. To use indexed fast indexing, you must specify the indexed-fast-index="type" property on the data points you want to use in the fast index comparison. (For more details on fast indexing, see Enabling Fast Indexing.)
You only need to select the quick indexing method for each name in the collection. If both quick indexing and indexing quick indexing properties are set to the same name, the advantage of indexing quick indexing is lost.
Deciding when to use these speed measurements is largely up to you.
Note: When you use any form of fast indexing, the content you want to fast index must be defined in your project's syntax as a field to be used in queries. If the terms you want to quickly index are not part of the default syntax, you must add them to the project syntax.
Valid index types that can be used with fast-indexed and indexed-fast- are:
date - a special data type that automatically calls IBM viv: date parsing date into date strings Generating function fast indexable integers. Allowed dates are 4 bytes and range from 1901-12-14 to 2038-01-18.
float - single precision floating point number with a decimal point. 4 bytes.
int - Integer. Change the number of bytes.
double or number - double precision floating point number with a decimal point. 8 bytes.
set - a set of values, such as a string. This is the default mode.
Start Quick Index
Start Quick Index
Index Specify accuracy of Quick Index number
Use Quick Index
Comparison Operator Support
XPath Operator Support >Index: >Index >While IBM emphasizes the use of inclusive language, it sometimes needs to use content outside IBM's direct influence to manage user access. As other industry leaders join IBM in using inclusive language, IBM will continue to update information to reflect these changes. |
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