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admin:indexing:concepts:retrieval [2011/01/17 22:42]
els
admin:indexing:concepts:retrieval [2012/01/20 18:08]
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-{{page>:​top_add&​nofooter&​noeditbtn}}+~~NOTOC~~
  
-====== Administration:​ Indexing ​Strategies ​======+{{page>:​top_add&​nofooter&​noeditbtn}} 
 +====== Administration: ​Omnidex ​Indexing ======
  
 ===== Indexing Concepts ===== ===== Indexing Concepts =====
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 Other queries may request primary keys, or even data from other columns. ​ If these columns are found in the indexes, they will be returned from the index in order to minimize retrieval from the database. ​ Omnidex will automatically perform this optimization. Other queries may request primary keys, or even data from other columns. ​ If these columns are found in the indexes, they will be returned from the index in order to minimize retrieval from the database. ​ Omnidex will automatically perform this optimization.
  
-Using these techniques, it is possible to optimize complex queries without ever accessing the database. ​ A query may access ​a dozen or two tables, applying a wide variety of criteria and performing aggregations and ordering. ​ If Omnidex can, it will attempt to satisfy all of these aspects in the indexes, providing the best performance possible. +Using these techniques, it is possible to optimize complex queries without ever accessing the database. ​ A query may access ​dozens of tables, applying a wide variety of criteria and performing aggregations and ordering. ​ If Omnidex can, it will attempt to satisfy all of these aspects in the indexes, providing the best performance possible.
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 **[[admin:​indexing:​concepts:​ordering|Prev]]** **[[admin:​indexing:​concepts:​ordering|Prev]]**
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 ====== Additional Resources ====== ====== Additional Resources ======
 
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admin/indexing/concepts/retrieval.txt · Last modified: 2016/06/28 22:38 (external edit)