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mdl_chat_users
INVESTIGATEUnclassified Moodle core/plugin table · 12 columnsProposed target
Owner decision: migrate, transform, archive or exclude
Migration rule
No safe target inferred from schema name alone
Verification required
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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 | |
| chatid | bigint | Not null | '0' | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security |
| userid | bigint | Not null | '0' | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security |
| groupid | bigint | Not null | '0' | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security |
| version | varchar(16) | Not null | '' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |
| ip | varchar(45) | Not null | '' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |
| firstping | bigint | Not null | '0' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |
| lastping | bigint | Not null | '0' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |
| lastmessageping | bigint | Not null | '0' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |
| sid | varchar(32) | Not null | '' | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security |
| course | bigint | Not null | '0' | Resolve to target foreign key via source-ID crosswalk; do not assume numeric IDs match target IDs. | High: verify semantics/relationship/security |
| lang | varchar(30) | Not null | '' | Map same-named field where semantics match; confirm target type, nullability, defaults and business meaning. | Schema-only inference |