Columns
| Column | Type | Size | Nulls | Auto | Default | Children | Parents | Comments |
|---|---|---|---|---|---|---|---|---|
| id | bigserial | 19 | √ | nextval('app_question_statistics_id_seq'::regclass) |
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| hashcode | varchar | 40 | ''::character varying |
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| timemodified | int8 | 19 | null |
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| questionid | int8 | 19 | null |
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| slot | int8 | 19 | √ | null |
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| subquestion | int2 | 5 | null |
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| variant | int8 | 19 | √ | null |
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| s | int8 | 19 | 0 |
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| effectiveweight | numeric | 15,5 | √ | null |
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| negcovar | int2 | 5 | 0 |
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| discriminationindex | numeric | 15,5 | √ | null |
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| discriminativeefficiency | numeric | 15,5 | √ | null |
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| sd | numeric | 15,10 | √ | null |
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| facility | numeric | 15,10 | √ | null |
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| subquestions | text | 2147483647 | √ | null |
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| maxmark | numeric | 12,7 | √ | null |
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| positions | text | 2147483647 | √ | null |
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| randomguessscore | numeric | 12,7 | √ | null |
|
|
Indexes
| Constraint Name | Type | Sort | Column(s) |
|---|---|---|---|
| app_quesstat_id_pk | Primary key | Asc | id |
Relationships
Close relationships within degrees of separation
