idx_covering

as donto believed on

From Dontopedia, the open, paraconsistent wiki. (Last updated 2026-06-10.)

idx_covering has 53 facts recorded in Dontopedia across 7 references, with 11 live disagreements.

53 facts·30 predicates·7 sources·11 in dispute

Mostly:rdf:type(8), covers columns(3), applied to(3)

Inbound mentions (18)

Other subjects in dontopedia point AT this entity as a value. These are inverse relationships — e.g. "X motherOf this subject" — and answer questions the forward facts can't. Grouped by predicate.

`hasIndex`Has Index(3)

Content Columnex:content-column
Document Id Columnex:document-id-column
Title Columnex:title-column

`isIndexedBy`Is Indexed by(3)

Content Columnex:content-column
Document Id Columnex:document-id-column
Title Columnex:title-column

`areAvoidedBy`Are Avoided by(1)

Additional Lookupsex:additional-lookups

`areIncludedIn`Are Included in(1)

All Columns Needed by Queryex:all-columns-needed-by-query

`contains`Contains(1)

Consider Followingex:consider-following

`containsRecommendation`Contains Recommendation(1)

Database Indexing Documentex:database-indexing-document

`creates`Creates(1)

Create Index Sqlex:create-index-sql

`createsIndex`Creates Index(1)

Covering Index Sqlex:covering-index-sql

`ex:includesTechnique`Ex:includes Technique(1)

Optimization Techniquesex:optimization-techniques

`ex:optimizedBy`Ex:optimized by(1)

Sql Query 12345ex:sql-query-12345

`hasCoveringIndexVariant`Has Covering Index Variant(1)

Index Creationex:index-creation

`hasMember`Has Member(1)

Consider Followingex:consider-following

`isBenefitOf`Is Benefit of(1)

Avoid Additional Lookupsex:avoid-additional-lookups

`isTypeOf`Is Type of(1)

Idx Covering Indexex:idx-covering-index

Other facts (49)

The long tail: predicates that appear too rarely to warrant their own section. Filter or scroll to find a specific one. Each row links to its source.

49 facts

Predicate	Value	Ref
Rdf:type	Index Type	[1]
Rdf:type	Index Type	[2]
Rdf:type	Checklist Item	[2]
Rdf:type	Database Index	[3]
Rdf:type	Database Index	[4]
Rdf:type	Index Type	[5]
Rdf:type	Database Index	[6]
Rdf:type	Index Type	[7]
Covers Columns	Document Id Column	[6]
Covers Columns	Title Column	[6]
Covers Columns	Content Column	[6]
Applied to	Document Id Column	[7]
Applied to	Title Column	[7]
Applied to	Content Column	[7]
Includes Columns	Document Id Column	[7]
Includes Columns	Title Column	[7]
Includes Columns	Content Column	[7]
Purpose	Reduce Io	[1]
Purpose	Query Optimization	[7]
Avoids	Additional Lookups	[2]
Avoids	Table Lookups	[6]
Includes Column	Document Id Column	[4]
Includes Column	Title Column	[4]
Ex:includes Column	Title Column	[5]
Ex:includes Column	Content Column	[5]
Improves	Query Performance	[6]
Improves	Query Performance	[7]
Has Name	Idx Covering Name	[6]
Has Name	Idx Covering	[7]
Includes	All Columns Needed by Query	[2]
Is Type of	Index	[2]
Provides Benefit	Avoid Additional Lookups	[2]
Has Example	Idx Covering Index	[3]
Has Template Instruction	replace-column-placeholders-with-actual-columns	[3]
Requires Column Specification	true	[3]
Uses Syntax	SQL-DDL	[3]
Has Syntax Pattern	CREATE-INDEX-with-multiple-columns	[3]
Has Sql Statement	Create Index Statement	[4]
Applies to	Documents Table	[4]
Has Columns	Index Columns	[4]
Has Identifier	Idx Covering Index Name	[4]
Instance of	Sql Index Creation	[4]
Ex:purpose	eliminate additional lookups	[5]
Ex:benefit	reduces disk I/O	[5]
Created on	Documents Table	[6]
Has Description	includes all columns needed for queries	[7]
Sub Type of	Index Type	[7]
Achieves	Query Optimization	[7]
Reduces	Disk Io Operations	[7]

Timeline axis is valid_time — when each source says the fact was true in the world, not when Dontopedia learned about it. Retracted rows are kept for provenance; coloured stripes indicate the context kind.

53 undated

—

typebeam/ddff336c-a289-466d-b192-cf2dd2b2366a

ex:IndexType

—

purposebeam/ddff336c-a289-466d-b192-cf2dd2b2366a

ex:reduce-io

—

includesbeam/e6e2321a-19ca-49e7-8b87-fef46d2145a3

ex:all-columns-needed-by-query

—

avoidsbeam/e6e2321a-19ca-49e7-8b87-fef46d2145a3

ex:additional-lookups

—

typebeam/e6e2321a-19ca-49e7-8b87-fef46d2145a3

ex:index-type

—

isTypeOfbeam/e6e2321a-19ca-49e7-8b87-fef46d2145a3

ex:index

—

typebeam/e6e2321a-19ca-49e7-8b87-fef46d2145a3

ex:checklist-item

—

providesBenefitbeam/e6e2321a-19ca-49e7-8b87-fef46d2145a3

ex:avoid-additional-lookups

—

typebeam/9ba8d202-48c9-428f-8f4a-96815627d3a0

ex:DatabaseIndex

—

hasExamplebeam/9ba8d202-48c9-428f-8f4a-96815627d3a0

ex:idx-covering-index

—

hasTemplateInstructionbeam/9ba8d202-48c9-428f-8f4a-96815627d3a0

replace-column-placeholders-with-actual-columns

—

requiresColumnSpecificationbeam/9ba8d202-48c9-428f-8f4a-96815627d3a0

true

—

usesSyntaxbeam/9ba8d202-48c9-428f-8f4a-96815627d3a0

SQL-DDL

—

labelbeam/9ba8d202-48c9-428f-8f4a-96815627d3a0

Covering Index

—

hasSyntaxPatternbeam/9ba8d202-48c9-428f-8f4a-96815627d3a0

CREATE-INDEX-with-multiple-columns

—

typebeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

ex:DatabaseIndex

—

labelbeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

Covering Index

—

hasSQLStatementbeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

ex:create-index-statement

—

appliesTobeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

ex:documents-table

—

hasColumnsbeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

ex:index-columns

—

includesColumnbeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

ex:document-id-column

—

includesColumnbeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

ex:title-column

—

hasIdentifierbeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

ex:idx-covering-index-name

—

instanceOfbeam/bbc02def-1ef9-49af-9fce-f28930a99f2e

ex:sql-index-creation

—

typebeam/d85391fa-21af-437e-8a7d-ba7bbd862695

ex:IndexType

—

purposebeam/d85391fa-21af-437e-8a7d-ba7bbd862695

eliminate additional lookups

—

benefitbeam/d85391fa-21af-437e-8a7d-ba7bbd862695

reduces disk I/O

—

includesColumnbeam/d85391fa-21af-437e-8a7d-ba7bbd862695

ex:title-column

—

includesColumnbeam/d85391fa-21af-437e-8a7d-ba7bbd862695

ex:content-column

—

typebeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

ex:DatabaseIndex

—

labelbeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

idx_covering

—

coversColumnsbeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

ex:document-id-column

—

coversColumnsbeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

ex:title-column

—

coversColumnsbeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

ex:content-column

—

improvesbeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

ex:query-performance

—

avoidsbeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

ex:table-lookups

—

createdOnbeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

ex:documents-table

—

hasNamebeam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64

ex:idx-covering-name

—

typebeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:IndexType

—

labelbeam/92543d72-590a-4046-bfef-11efb61dbbf5

Covering Index

—

hasDescriptionbeam/92543d72-590a-4046-bfef-11efb61dbbf5

includes all columns needed for queries

—

appliedTobeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:document-id-column

—

appliedTobeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:title-column

—

appliedTobeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:content-column

—

purposebeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:query-optimization

—

subTypeOfbeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:index-type

—

achievesbeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:query-optimization

—

hasNamebeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:idx_covering

—

improvesbeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:query-performance

—

includesColumnsbeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:document-id-column

—

includesColumnsbeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:title-column

—

includesColumnsbeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:content-column

—

reducesbeam/92543d72-590a-4046-bfef-11efb61dbbf5

ex:disk-io-operations

References (7)

7 references

[1]Ddff336c A289 466d B192 Cf2dd2b2366a2 facts
ctx:claims/beam/ddff336c-a289-466d-b192-cf2dd2b2366a
[2]E6e2321a 19ca 49e7 8b87 Fef46d2145a36 facts
ctx:claims/beam/e6e2321a-19ca-49e7-8b87-fef46d2145a3
- full textbeam-chunk
  text/plain1 KBdoc:beam/e6e2321a-19ca-49e7-8b87-fef46d2145a3
  Show excerpt
  1. **Query Execution Time**: Even with proper indexing, the query execution time might still be high due to other factors. 2. **Network Latency**: The time taken for the query to travel over the network can contribute significantly to laten…
[3]9ba8d202 48c9 428f 8f4a 96815627d3a07 facts
ctx:claims/beam/9ba8d202-48c9-428f-8f4a-96815627d3a0
- full textbeam-chunk
  text/plain1 KBdoc:beam/9ba8d202-48c9-428f-8f4a-96815627d3a0
  Show excerpt
  CREATE INDEX idx_document_id ON documents(document_id); ``` For a covering index: ```sql CREATE INDEX idx_covering ON documents(document_id, column1, column2, ...); ``` Replace `column1`, `column2`, etc., with the actual columns you need…
[4]Bbc02def 1ef9 49af 9fce F28930a99f2e9 facts
ctx:claims/beam/bbc02def-1ef9-49af-9fce-f28930a99f2e
- full textbeam-chunk
  text/plain1 KBdoc:beam/bbc02def-1ef9-49af-9fce-f28930a99f2e
  Show excerpt
  - **CPU**: Upgrade to a faster CPU if necessary. - **Memory**: Increase RAM to allow more data to be cached in memory. - **Disk I/O**: Use SSDs for faster read/write speeds. #### 6. Concurrency Management Manage concurrency to avoid conten…
[5]D85391fa 21af 437e 8a7d Ba7bbd8626955 facts
ctx:claims/beam/d85391fa-21af-437e-8a7d-ba7bbd862695
- full textbeam-chunk
  text/plain1 KBdoc:beam/d85391fa-21af-437e-8a7d-ba7bbd862695
  Show excerpt
  EXPLAIN SELECT * FROM documents WHERE document_id = 12345; ``` The output will show you the execution plan, including whether an index is being used and how many rows are being examined. ### Step 2: Ensure Proper Indexing Based on the `E…
[6]Cb1056c3 1ada 4dc2 81fc Efd623a7eb649 facts
ctx:claims/beam/cb1056c3-1ada-4dc2-81fc-efd623a7eb64
[7]92543d72 590a 4046 Bfef 11efb61dbbf515 facts
ctx:claims/beam/92543d72-590a-4046-bfef-11efb61dbbf5
- full textbeam-chunk
  text/plain1 KBdoc:beam/92543d72-590a-4046-bfef-11efb61dbbf5
  Show excerpt
  CREATE INDEX idx_covering ON documents(document_id, title, content); ``` 3. **Primary Key or Unique Identifier**: Ensure that your table has a unique identifier, such as an auto-incrementing primary key, to uniquely identify each …

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idx_covering

Inbound mentions (18)

hasIndexHas Index(3)

isIndexedByIs Indexed by(3)

areAvoidedByAre Avoided by(1)

areIncludedInAre Included in(1)

containsContains(1)

containsRecommendationContains Recommendation(1)

createsCreates(1)

createsIndexCreates Index(1)

ex:includesTechniqueEx:includes Technique(1)

ex:optimizedByEx:optimized by(1)

hasCoveringIndexVariantHas Covering Index Variant(1)

hasMemberHas Member(1)

isBenefitOfIs Benefit of(1)

isTypeOfIs Type of(1)

Other facts (49)

Timeline

References (7)

See also

Keep researching

`hasIndex`Has Index(3)

`isIndexedBy`Is Indexed by(3)

`areAvoidedBy`Are Avoided by(1)

`areIncludedIn`Are Included in(1)

`contains`Contains(1)

`containsRecommendation`Contains Recommendation(1)

`creates`Creates(1)

`createsIndex`Creates Index(1)

`ex:includesTechnique`Ex:includes Technique(1)

`ex:optimizedBy`Ex:optimized by(1)

`hasCoveringIndexVariant`Has Covering Index Variant(1)

`hasMember`Has Member(1)

`isBenefitOf`Is Benefit of(1)

`isTypeOf`Is Type of(1)