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mdl_cache_flags
EXCLUDETransient / runtime state · 6 columnsProposed target
Do not migrate; recreate runtime state
Migration rule
Sessions, locks, queues and caches are not business records
Verification required
Confirm no custom business meaning is hidden in plugin table
Tracking
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| Column | Type | Null | Default | Target mapping | Risk |
|---|---|---|---|---|---|
| id | bigint | Not null | Preserve as legacy source ID; generate target PK unless target accepts stable legacy key. | High: verify semantics/relationship/security | |
| flagtype | varchar(255) | Not null | '' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |
| name | varchar(255) | Not null | '' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |
| timemodified | bigint | Not null | '0' | Convert Unix epoch to UTC timestamp; verify 0/null sentinel and date semantics. | Schema-only inference |
| value | longtext | Not null | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference | |
| expiry | bigint | Not null | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |