updated_at

as donto believed on

From Dontopedia, the open, paraconsistent wiki. (Last updated 2026-06-07.)

updated_at has 40 facts recorded in Dontopedia across 12 references, with 5 live disagreements.

40 facts·22 predicates·12 sources·5 in dispute

Mostly:rdf:type(5), has type(3), has name(3)

Inbound mentions (14)

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.

`hasColumn`Has Column(8)

Image Storage Table Newex:image-storage-table-new
Tasks Tableex:tasks-table
Todo List Tableex:todo-list-table
User Profiles Tableex:user-profiles-table
User Profiles Tableex:user-profiles-table
User Profiles Tableex:user-profiles-table
User Profiles Tableex:user-profiles-table
Users Tableex:users-table

`addedColumnPostArgs`Added Column Post Args(1)

User Profiles Tableex:user-profiles-table

`composedOf`Composed of(1)

User Profiles Tableex:user-profiles-table

`hasColumnUpdatedAtTimestamptzDefaultNow`Has Column Updated at Timestamptz Default Now(1)

Suggested Schema User Profilesex:suggested-schema-user-profiles

`includes`Includes(1)

Timestamp Columnsex:timestamp-columns

`includesColumn`Includes Column(1)

Todo List Columnsex:todo-list-columns

`temporalTracking`Temporal Tracking(1)

Users Tableex:users-table

Other facts (36)

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.

36 facts

Predicate	Value	Ref
Rdf:type	Database Column	[8]
Rdf:type	Database Column	[9]
Rdf:type	Column	[10]
Rdf:type	Database Column	[11]
Rdf:type	Column	[12]
Has Type	TIMESTAMP	[1]
Has Type	TIMESTAMPTZ	[4]
Has Type	TIMESTAMPTZ	[6]
Has Name	updated_at	[1]
Has Name	updated_at	[4]
Has Name	updated_at	[6]
Has Data Type	TIMESTAMPTZ	[8]
Has Data Type	Timestamptz Type	[9]
Has Data Type	timestamp	[12]
Column Name	updated_at	[7]
Column Name	updated_at	[11]
Column Type	TIMESTAMP	[7]
Column Type	TIMESTAMP	[11]
Is Part of	Tasks Table	[10]
Is Part of	Users Table	[12]
Column Property	DEFAULT CURRENT_TIMESTAMP	[11]
Column Property	ON UPDATE CURRENT_TIMESTAMP	[11]
Has Default	now	[2]
Data Type	TIMESTAMPTZ	[2]
Serves Update Tracking Purpose	Record Modification	[3]
Presupposes Temporal Tracking	Record Update Time	[4]
Tracks Modification	Table Updates	[5]
Is Implied by Convention	Created at Pairing	[6]
Part of Table	User Profiles Table	[8]
Column Data Type	TIMESTAMP	[10]
Has Default Value	CURRENT_TIMESTAMP	[10]
On Update Action	CURRENT_TIMESTAMP	[10]
On Update Behavior	CURRENT_TIMESTAMP	[11]
Automatic Update	true	[11]
Auto Populated	true	[12]
Trigger Event	record-update	[12]

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.

40 undated

—

hasTypeblah/omega/part-474

TIMESTAMP

—

hasNameblah/omega/part-474

updated_at

—

hasDefaultblah/omega/part-668

now

—

dataTypeblah/omega/part-668

TIMESTAMPTZ

—

servesUpdateTrackingPurposeblah/omega/part-887

ex:record-modification

—

hasTypeblah/omega/part-890

TIMESTAMPTZ

—

hasNameblah/omega/part-890

updated_at

—

presupposesTemporalTrackingblah/omega/part-890

ex:record-update-time

—

tracksModificationblah/omega/part-891

ex:table-updates

—

isImpliedByConventionblah/omega/part-884

ex:created-at-pairing

—

hasTypeblah/omega/part-884

TIMESTAMPTZ

—

hasNameblah/omega/part-884

updated_at

—

columnNameblah/omega/468

updated_at

—

columnTypeblah/omega/468

TIMESTAMP

—

typeblah/omega/881

ex:DatabaseColumn

—

labelblah/omega/881

updated_at

—

hasDataTypeblah/omega/881

TIMESTAMPTZ

—

partOfTableblah/omega/881

ex:user-profiles-table

—

typeblah/omega/887

ex:DatabaseColumn

—

labelblah/omega/887

updated_at

—

hasDataTypeblah/omega/887

ex:TIMESTAMPTZ-type

—

typebeam/c2258b4a-77f6-41b7-994b-16233d9c8dd8

ex:Column

—

labelbeam/c2258b4a-77f6-41b7-994b-16233d9c8dd8

updated_at

—

columnDataTypebeam/c2258b4a-77f6-41b7-994b-16233d9c8dd8

TIMESTAMP

—

hasDefaultValuebeam/c2258b4a-77f6-41b7-994b-16233d9c8dd8

CURRENT_TIMESTAMP

—

onUpdateActionbeam/c2258b4a-77f6-41b7-994b-16233d9c8dd8

CURRENT_TIMESTAMP

—

isPartOfbeam/c2258b4a-77f6-41b7-994b-16233d9c8dd8

ex:tasks-table

—

typebeam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6

ex:DatabaseColumn

—

columnNamebeam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6

updated_at

—

columnTypebeam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6

TIMESTAMP

—

columnPropertybeam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6

DEFAULT CURRENT_TIMESTAMP

—

columnPropertybeam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6

ON UPDATE CURRENT_TIMESTAMP

—

onUpdateBehaviorbeam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6

CURRENT_TIMESTAMP

—

automaticUpdatebeam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6

true

—

typebeam/9e072120-ba8b-4118-a19e-f4a00b761c84

ex:Column

—

labelbeam/9e072120-ba8b-4118-a19e-f4a00b761c84

updated_at

—

hasDataTypebeam/9e072120-ba8b-4118-a19e-f4a00b761c84

timestamp

—

isPartOfbeam/9e072120-ba8b-4118-a19e-f4a00b761c84

ex:users-table

—

autoPopulatedbeam/9e072120-ba8b-4118-a19e-f4a00b761c84

true

—

triggerEventbeam/9e072120-ba8b-4118-a19e-f4a00b761c84

record-update

References (12)

12 references

[1]Part 4742 facts
ctx:discord/blah/omega/part-474
[2]Part 6682 facts
ctx:discord/blah/omega/part-668
[3]Part 8871 fact
ctx:discord/blah/omega/part-887
[4]Part 8903 facts
ctx:discord/blah/omega/part-890
[5]Part 8911 fact
ctx:discord/blah/omega/part-891
[6]Part 8843 facts
ctx:discord/blah/omega/part-884
[7]4682 facts
ctx:discord/blah/omega/468
- full textomega-468
  text/plain3 KBdoc:agent/omega-468/5818af60-1832-49bf-999b-c598f0337715
  Show excerpt
  [2025-12-02 10:46] omega [bot]: <@1340709301794373632> foxhop. asks you now for a Ruby "Hello World" program that uses random repetition from 1 to 9 times for the printed message. Please provide this via direct message. [2025-12-02 10:46] u…
[8]8814 facts
ctx:discord/blah/omega/881
- full textomega-881
  text/plain1 KBdoc:agent/omega-881/eb0ec067-2f81-4393-b097-eb07cc0627e9
  Show excerpt
  [2026-01-17 04:26] omega [bot]: 🔧 18/30: pgCreateTable ✅ Success **Args:** ```json { "table": "user_profiles", "columns": [ { "name": "id", "type": "SERIAL", "nullable": false, "primaryKey": true, "uniq…
[9]8873 facts
ctx:discord/blah/omega/887
- full textomega-887
  text/plain1 KBdoc:agent/omega-887/d1e7249d-7301-4dd8-b126-dbcf730deace
  Show excerpt
  [2026-01-17 04:26] omega [bot]: 🔧 24/30: pgCreateTable ✅ Success **Args:** ```json { "table": "user_profiles", "columns": [ { "name": "id", "type": "TEXT", "nullable": false, "primaryKey": true, "unique…
[10]C2258b4a 77f6 41b7 994b 16233d9c8dd86 facts
ctx:claims/beam/c2258b4a-77f6-41b7-994b-16233d9c8dd8
[11]B59c7df2 58c7 42b1 B35d 5a70fe32fae67 facts
ctx:claims/beam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6
- full textbeam-chunk
  text/plain1 KBdoc:beam/b59c7df2-58c7-42b1-b35d-5a70fe32fae6
  Show excerpt
  ### Review and Improvements 1. **Indexing**: - Ensure that indexes are created on columns that are frequently queried. - Avoid creating unnecessary indexes, as they can slow down write operations. 2. **Normalization**: - Normaliz…
[12]9e072120 Ba8b 4118 A19e F4a00b761c846 facts
ctx:claims/beam/9e072120-ba8b-4118-a19e-f4a00b761c84
- full textbeam-chunk
  text/plain1 KBdoc:beam/9e072120-ba8b-4118-a19e-f4a00b761c84
  Show excerpt
  attribute3 VARCHAR(255), attribute4 VARCHAR(255), attribute5 VARCHAR(255), attribute6 VARCHAR(255), FOREIGN KEY (user_id) REFERENCES users(user_id) ON DELETE CASCADE ); -- Indexes CREATE INDEX idx_username ON users(user…

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updated_at

Inbound mentions (14)

hasColumnHas Column(8)

addedColumnPostArgsAdded Column Post Args(1)

composedOfComposed of(1)

hasColumnUpdatedAtTimestamptzDefaultNowHas Column Updated at Timestamptz Default Now(1)

includesIncludes(1)

includesColumnIncludes Column(1)

temporalTrackingTemporal Tracking(1)

Other facts (36)

Timeline

References (12)

See also

Keep researching

`hasColumn`Has Column(8)

`addedColumnPostArgs`Added Column Post Args(1)

`composedOf`Composed of(1)

`hasColumnUpdatedAtTimestamptzDefaultNow`Has Column Updated at Timestamptz Default Now(1)

`includes`Includes(1)

`includesColumn`Includes Column(1)

`temporalTracking`Temporal Tracking(1)