Now, drop the unfiltered index and re-create a filtered index that excludes values

www.depesz.com/2010/09/09/why-is-my-index-not-being-used/‎CachedSimilarSep 9, 2010 . I can test when index is being used, and when it's switching to seq scan. And it

www.keepitsimpleandfast.com/. /my-filtered-index-is-not-used-impact-of. html‎CachedOct 4, 2010 . In case your database is configured with forced parameterization, it can happen

https://wiki.apache.org/solr/SolrCaching‎CachedJun 19, 2014 . So as long as that Index Searcher is being used, any items in the cache will be

www.postgresql.org/docs/8.0/static/indexes-partial.html‎CachedSimilarHowever, the index can also be used in queries that do not involve order_nr at all

www.codeproject.com/. /Database-performance-optimization-part-Indexing‎CachedSimilar  Rating: 4.9 - 110 votesAug 7, 2011 . Typically created on column used in JOIN, WHERE, and ORDER BY clauses. .

en.wikipedia.org/wiki/Partial_index‎CachedSimilarIn databases, a partial index, also known as filtered index is an index which . "

code.openark.org/. /7-ways-to-convince-mysql-to-use-the-right-index‎CachedSimilarApr 2, 2009 . Two storage engines; different plans, Part I · MySQL not being able to utilize .

An advantageous approach then is to create a filtered index on ytd_sales without

sqlinthewild.co.za/index. /sql-university-advanced-indexing-filtered-indexes- 2/‎CachedSimilarNov 10, 2011 . So much for nulls not being equal to anything including other nulls. Prior to SQL

stackoverflow.com/. /filtered-index-condition-is-ignored-by-optimizer‎CachedSimilarI, as a human being, know that the above index is all that SQL Server needs, .

https://issues.liferay.com/browse/LPS-11066‎CachedSimilar(does not include LPS-11066) . Set the limit for results used when performing

www.mssqlgirl.com/filtered-index-limitation.html‎CachedSimilarSep 25, 2011 . Filtered Index feature has been introduced since SQL Server 2008. . Having

www.tek-tips.com/viewthread.cfm?qid=1726104‎CachedYou can set the index filtered for NOT DELETED() to solve that problem. . .. One

blog.sqlauthority.com/. /sql-server-2008-unused-index-script-download/‎CachedSimilarJan 4, 2011 . Please note, if you should not drop all the unused indexes this script suggest. .

www.brentozar.com/. /what-you-can-and-cant-do-with-filtered-indexes/‎CachedSimilarNov 12, 2013 . Create a filtered index for all NOT NULL values – or all NULL values. . . could

https://developer.mozilla.org/en-US/docs/Web/JavaScript/. /filter‎CachedSimilarSep 10, 2014 . Array elements which do not pass the callback test are simply . the value of the

sqlsunday.com/2014/05/18/introduction-to-filtered-indexes/‎CachedMay 18, 2014 . Filtered indexes are an excellent performance tuning feature found on SQL

scn.sap.com/thread/3570521‎CachedThere is no way to force the ASE to pick a specified index any more if it . As a

support.dtsearch.com/webhelp/dtsearch/filtering_options.htm‎CachedSimilarUse the Binary files setting to specify whether you want dtSearch to index these .

https://www.simple-talk.com/. /introduction-to-sql-server-filtered-indexes/‎CachedSimilarApr 19, 2013 . How does a filtered index affect the choice of execution plan? . that there are no

blogs.msdn.com/b/. /the-drawback-of-using-filtered-indexes.aspx‎CachedSimilarAug 27, 2012 . There are cases, unfortunately, where decisions can't be made as to if the filtered

www.sql-server-performance.com/. /temp-tables-and-indexes.27807/‎CachedSimilarHowever, the index is not being used. . Try creating filtered indexes in this case

www.sqlskills.com/. /filtered-indexes-and-filtered-stats-might-become- seriously-out-of-date/‎CachedSimilarSep 24, 2009 . Now, for regular indexes (those that do not include a filter) both strategies have .

www.google.com/patents/US5873079Feb 16, 1999 . a filtered index definition containing a criterion for selecting records to be indexed

www.sqlteam.com/forums/topic.asp?topic_id=142044‎CachedI have created a filtered index on a table and when I run a query that should use

sqlfool.com/2010/02/filtered-indexes-work-around/‎CachedSimilarFeb 1, 2010 . SQL Server would not allow me to execute the stored procedure using the filtered

www.sqlservercentral.com/Forums/Topic1063683-2904-1.aspx‎SimilarFeb 14, 2011 . Therefore, SQL Server does not realize that the filtered index covers the .

sqlserversblog.com/The_Importance_of_Indexes.html‎CachedUNIQUE constraints are used to enforce uniqueness, not unique indexes: .

dba.stackexchange.com/. /sql-server-2008r2-why-is-my-index-not-used‎CachedSimilarMyTable] ( [MyTable_ID] [int] IDENTITY(1,1) NOT NULL, [COLUMN_WITH_DATA]

msdn.microsoft.com/en-us/library/cc280372.aspx‎CachedIt uses a filter predicate to index a portion of rows in the table. . A column in the

www.slideshare.net/. /sql-server-2012-in-memory-column-store-index-deep- dive‎CachedSimilarDec 14, 2013 . How Do I Use It? • When Should I Use It? • When Should I Not Use It? • Design

thinknook.com/sql-cannot-produce-query-plan-error-2011-12-22/‎CachedSimilarDec 22, 2011 . Query processor could not produce a query plan because of the hints . If you are

infocenter.sybase.com/help/topic/com. /fre1362419132643.html‎CachedSimilarMay 2, 2013 . The filter and subquery operations work together to limit the number of rows .

www.oracle-base.com/articles/misc/efficient-sql-statements.php‎CachedSimilarThe presence of an index on a column does not guarantee it will be used. The

sqlperformance.com/2013/04/t-sql-queries/filtered-indexes‎CachedApr 24, 2013 . I wanted to point out a few areas where filtered indexes could be improved and

www.jasonstrate.com/. /qa-from-5-ways-to-improve-performance-through- indexing/‎CachedSimilarSep 13, 2013 . It's not more expensive to have filtered indexes than their . that are being retried

sqlperformance.com/. /t. /optimizer-limitations-with-filtered-indexes‎CachedApr 4, 2013 . The sparse option is not required, I just include it because I don't get much . The

sqlblog.com/. /parameterization-and-filtered-indexes-part-1.aspx‎CachedSimilarJan 19, 2014 . Before adding filtered indexes to the mix, let's start with some experiments. First,

dev.mysql.com/doc/refman/5.1/en/explain-output.html‎CachedFeb 8, 2011 . EXPLAIN EXTENDED also displays the filtered column as of MySQL 5.1.12. . ..

hoopercharles.wordpress.com/. /repeat-after-me-null-values-are-not-stored- in-indexes/‎CachedSimilarFeb 28, 2012 . Therefore, the following query will not use an index; there is no way the . ..

www.mssqltips.com/. /sql-server-filtered-indexes-what-they-are-how-to-use- and-performance-advantages/‎CachedSimilarJul 2, 2009 . SQL Server 2008 introduces Filtered Indexes which is an index with a WHERE

tutorial.programming4.us/. /SQL-Server-2008-R2---Row-Estimation-and- Index-Selection-(part-4)---Optimizing-with-Indexed-Views---Optim. ‎CachedSep 10, 2011 . SQL Server 2008 introduces the capability to define filtered indexes . An

docs.oracle.com/cd/B28359_01/appdev.111/. /exprn_sql.htm‎CachedSimilarThe list of stored and indexed attributes for the Expression Filter index being

But what if the WHERE clause didn't result in both indexes being used? Instead,

sqlmag.com/t-sql/discover-benefits-filtered-indexes-and-statistics‎CachedSimilarAug 27, 2008 . You can use IN; the comparison operators IS NULL, IS NOT NULL, =, <>, ! .

sqlblogcasts.com/. /execution-plan-warnings-the-final-chapter.aspx‎CachedSimilarNov 29, 2011 . Filtered indexes were introduced in Sql Server 2008 and are really . So, handily,

infolib.lotus.com/resources/portal/8.0. /ctc_trouble_comp.html‎CachedNo content is being shown in a list when you are sure there should be. . a

www.sqlservercentral.com/. /sql-university_3A00_-advanced-indexing-_ 1320_-filtered-indexes/Nov 9, 2011 . So much for nulls not being equal to anything including other nulls. Prior to SQL

www.sql-server-performance.com/2013/sql-server-index-tuning/‎CachedSimilarPDS to use : select (Indexes + include Filtered indexes ) if you are using SQL . (if

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