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When do full text indexes become full populations?
If the first population on a full-text index is an incremental population, it indexes all rows, making it equivalent to a full population. If any metadata that affects the full-text index for the table has changed since the last population, incremental population requests are implemented as full populations.
What happens when the full text index is disabled?
When the full-text index is disabled, the full-text index metadata remains in the system tables. If CHANGE_TRACKING is in the enabled state (automatic or manual update) when the full-text index is disabled, the state of the index freezes, any ongoing crawl stops, and new changes to the table data are not tracked or propagated to the index.
Can a Stoplist be used for a full text index?
Specify a stoplist to use for the full-text index, or disable stoplist use. Stopwords are managed in databases using objects called stoplists. A stoplist is a list of stopwords that, when associated with a full-text index, is applied to full-text queries on that index.
Why are changes not reflected in full text index?
Data changes made through WRITETEXT and UPDATETEXT are not reflected in the full-text index, and are not picked up with change tracking. For tables containing a timestamp column, you can use incremental population instead of change tracking.
What are the different types of full text indexes?
There are three types of full-text index population: Incremental population based on a timestamp. For more info, see Populate Full-Text Indexes. Returns a row for each full-text catalog to full-text index reference. Contains a row for each column that is part of a full-text index.
When to populate full text index in SQL Server?
Full population During a full population, index entries are built for all the rows of a table or indexed view. A full population of a full-text index, builds index entries for all the rows of the base table or indexed view. By default, SQL Server populates a new full-text index fully as soon as it is created.
How to improve the performance of full text indexes?
When a population has completed, a final merge process is triggered that merges the index fragments together into one master full-text index. This results in improved query performance since only the master index needs to be queried rather than a number of index fragments, and better scoring statistics may be used for relevance ranking.