Question

Why does Postgresql not use Index Only Scan on my composite index in this case?

score 348 · Answer 1 · 2015-06-18 15:14:03

348

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Why does Postgresql not use Index Only Scan on my composite index in this case?

Published on 18 June 2015 at 15:14

score 526 · Answer 2 · 2011-02-16 22:30:55

526

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Do mysql composite indexes make some other indexes completely redundant?

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score 113 · Answer 3 · 2012-02-02 13:03:51

113

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Published on 02 February 2012 at 13:03

score 234 · Answer 4 · 2011-10-08 10:38:44

234

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What is a MYSQL composite index?

Published on 08 October 2011 at 10:38

score 84.4k · Answer 5 · 2009-12-01 02:47:07

84.4k

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score 101 · Answer 6 · 2020-09-12 13:08:13

101

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Does a MySQL database use a composite index when one of the fields in the WHERE clause is null?

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score 62 · Answer 7 · 2021-05-21 05:16:15

62

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score 104 · Answer 8 · 2020-07-27 10:42:29

104

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score 464 · Answer 9 · 2021-01-21 16:08:40

464

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score 1.5k · Answer 10 · 2021-02-17 07:25:58

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score 281 · Answer 11 · 2022-05-25 12:14:55

281

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Why is MySQL preferring a single index over a composite index?

Published on 25 May 2022 at 12:14

score 265 · Answer 12 · 2022-06-06 15:09:30

265

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firestore REST order by 2 fields ( composite query )

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score 32 · Answer 13 · 2022-11-08 11:07:20

32

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Cannot assemble COIN object, due to column names and indicator codes not matching with makeCOIN(IndData) in COINr6 R package

Published on 08 November 2022 at 11:07

score 237 · Answer 14 · 2022-11-09 18:01:27

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Postgres: Sort Unique Index by a separate column

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score 440 · Answer 15 · 2018-05-11 14:57:54

440

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score 424 · Answer 16 · 2018-08-11 14:52:35

424

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Published on 11 August 2018 at 14:52

score 487 · Answer 17 · 2020-03-24 14:05:50

487

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score 13.9k · Answer 18 · 2011-11-21 14:19:03

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Mysql covering vs composite vs column index

Published on 21 November 2011 at 14:19

score 983 · Answer 19 · 2010-08-27 15:59:44

983

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Published on 27 August 2010 at 15:59

score 313 · Answer 20 · 2019-12-05 10:03:54

313

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List Question

Why does Postgresql not use Index Only Scan on my composite index in this case?

Do mysql composite indexes make some other indexes completely redundant?

Is a composite index row created for an entity if one of the properties is missing?

What is a MYSQL composite index?

When should I use a composite index?

Does a MySQL database use a composite index when one of the fields in the WHERE clause is null?

Optimize my query (indexes, EXPLAIN) Mysql

Define a composite index in EdgeDB

What is the size of a composite index in MySQL/MariaDB

Composite index on three columns

Why is MySQL preferring a single index over a composite index?

firestore REST order by 2 fields ( composite query )

Cannot assemble COIN object, due to column names and indicator codes not matching with makeCOIN(IndData) in COINr6 R package

Postgres: Sort Unique Index by a separate column

Provide text column length on composite unique index creation

Creating indexing for dot annotated dynamic path in firestore [Wildcard]?

index on composite primary key columns

Mysql covering vs composite vs column index

How to index collection by using composite key

"Using index" with composite index: A=, B=, C<=

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