frequently queried columns
From Dontopedia, the open, paraconsistent wiki. (Last updated 2026-06-10.)
frequently queried columns is Columns frequently used in WHERE, JOIN, and ORDER BY clauses are good candidates for indexing.
Mostly:rdf:type(3), recommended for(3), should be indexed(1)
Maturity scale
raw canonical shape-checked rule-derived certifiedInbound mentions (4)
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.
appliesToApplies to(1)
- Indexes
ex:indexes
describesDescribes(1)
- Indexes Consideration
ex:indexes-consideration
hasSectionHas Section(1)
- Indexing Best Practices
ex:indexing-best-practices
shouldBeAddedToShould Be Added to(1)
- Indexes
ex:indexes
Other facts (9)
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.
| Predicate | Value | Ref |
|---|---|---|
| Rdf:type | Column Category | [1] |
| Rdf:type | Database Concept | [2] |
| Rdf:type | Indexing Concept | [4] |
| Recommended for | Where Clause | [4] |
| Recommended for | Join Clause | [4] |
| Recommended for | Order by Clause | [4] |
| Should Be Indexed | true | [3] |
| Description | Columns frequently used in WHERE, JOIN, and ORDER BY clauses are good candidates for indexing | [4] |
| Optimizes | Query Performance | [4] |
Timeline
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.
References (4)
ctx:claims/beam/13d9d53b-f4e9-4011-81f4-52e6c13ae869ctx:claims/beam/7d9700d6-4442-4d27-9d44-85c642b47d0e- full textbeam-chunktext/plain1 KB
doc:beam/7d9700d6-4442-4d27-9d44-85c642b47d0eShow excerpt
- `user_id`: Foreign key referencing the `users` table. - `role_id`: Foreign key referencing the `roles` table. - `start_date`: Start date of the assignment. - `end_date`: End date of the assignment. - `status`: Current statu…
ctx:claims/beam/8769b3dc-dc08-4d76-9935-c0166e90c298- full textbeam-chunktext/plain1 KB
doc:beam/8769b3dc-dc08-4d76-9935-c0166e90c298Show excerpt
1. **Primary Key and Indexes**: - Ensure that the primary key is properly indexed. - Add indexes to columns that are frequently queried, such as `username` and `email`. 2. **Data Types**: - Use appropriate data types to optimize s…
ctx:claims/beam/fbce5f5b-0607-4fa0-98f3-bf4eaf425a29- full textbeam-chunktext/plain1 KB
doc:beam/fbce5f5b-0607-4fa0-98f3-bf4eaf425a29Show excerpt
### Best Practices for Indexing 1. **Identify Frequently Queried Columns**: - Identify columns that are frequently used in `WHERE`, `JOIN`, and `ORDER BY` clauses. These are good candidates for indexing. 2. **Use Composite Indexes**: …
See also
Keep researching
Missing something or suspicious of what's here? Kick off a research session — a Claude agent will investigate, cite its sources, and file new facts into a dedicated context you can review before accepting into the shared view.