Joseph Doherty
a4806576af
Owner decision (b), 2026-11-09. PendingUpdatesEvaluator re-flattened every deployed instance on each cache-TTL expiry even when nothing had changed. - Migration AddConfigGraphRowVersions: a non-concurrency rowversion column + index on the 18 configuration tables the evaluation reads (Templates + 5 member tables, Instances + 4 override/binding tables, DataConnections, DeployedConfigSnapshots, Sites, SharedScripts, ExternalSystemDefinitions, ExternalSystemMethods, DatabaseConnectionDefinitions). SQL Server only in the model; SQLite test contexts are untouched. Script: docs/plans/sql/AddConfigGraphRowVersions.sql. Joins the coordinated central-pair migration window (#107 item 4). - IConfigGraphWatermarkReader / ConfigGraphWatermarkReader: ONE query of MAX(RowVersion) + COUNT_BIG(*) per table (count catches deletes, which raise no rowversion). rowversion is engine-bumped for any writer, so a peer central node's edit moves it — not the per-process watermark MG-3 removed. - The secret store (outside the DB) gets its own stamp: SHA-256 over ListAsync(includeDeleted: true) metadata. - Evaluator re-serves the last CLEAN snapshot while watermark + secret stamp are unchanged; every PendingUpdatesFullEvaluationEvery'th (default 10, validated >= 1, 1 = off) is full regardless — the safety net for a same-KEK re-wrap or an input table missing from the set. Always full when the token is unavailable/unreadable, after an evaluation that could not compute a site's artifact hash, on Re-check, and after a deploy completion. It only re-serves a real earlier answer, never manufactures one. Tests: SQL Server (real migrated DB) — token stable without writes, moves for a peer-connection INSERT/UPDATE and a non-max DELETE, moves for a local EF write, a detached Update still saves (not a concurrency token), and a guard that every table the evaluator's repository reads touch is covered. Evaluator — reuse without flatten (re-served answer still shows the stale instance), watermark move, 4 secret changes, every-Nth, 5 no-token modes, unclean evaluation not reused, cache Re-check and deploy completion force full. Mutation-proven: token compare, clean check, cache force flag, row count, and an uncovered read each turn tests red. Claude-Session: https://claude.ai/code/session_01GT67AEHd2Acv1YPwGfXEoV
85 lines
3.6 KiB
Transact-SQL
85 lines
3.6 KiB
Transact-SQL
-- AddConfigGraphRowVersions (2026-11-10, ScadaBridge#62). A rowversion column + index on the 18 configuration
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-- tables feeding the pending-updates evaluation, so PendingUpdatesEvaluator can skip the fleet flatten when
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-- MAX(RowVersion)+COUNT_BIG(*) over them is unchanged. Additive: SQL Server fills every existing row as the
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-- column is added; old binaries ignore the column. Apply after AddAuditLogHashChain in the coordinated
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-- central-pair migration window (ScadaBridge#107 item 4).
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BEGIN TRANSACTION;
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ALTER TABLE [TemplateScripts] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [Templates] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [TemplateNativeAlarmSources] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [TemplateCompositions] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [TemplateAttributes] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [TemplateAlarms] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [Sites] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [SharedScripts] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [Instances] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [InstanceNativeAlarmSourceOverrides] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [InstanceConnectionBindings] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [InstanceAttributeOverrides] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [InstanceAlarmOverrides] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [ExternalSystemMethods] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [ExternalSystemDefinitions] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [DeployedConfigSnapshots] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [DataConnections] ADD [RowVersion] rowversion NOT NULL;
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ALTER TABLE [DatabaseConnectionDefinitions] ADD [RowVersion] rowversion NOT NULL;
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CREATE INDEX [IX_TemplateScripts_RowVersion] ON [TemplateScripts] ([RowVersion]);
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CREATE INDEX [IX_Templates_RowVersion] ON [Templates] ([RowVersion]);
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CREATE INDEX [IX_TemplateNativeAlarmSources_RowVersion] ON [TemplateNativeAlarmSources] ([RowVersion]);
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CREATE INDEX [IX_TemplateCompositions_RowVersion] ON [TemplateCompositions] ([RowVersion]);
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CREATE INDEX [IX_TemplateAttributes_RowVersion] ON [TemplateAttributes] ([RowVersion]);
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CREATE INDEX [IX_TemplateAlarms_RowVersion] ON [TemplateAlarms] ([RowVersion]);
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CREATE INDEX [IX_Sites_RowVersion] ON [Sites] ([RowVersion]);
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CREATE INDEX [IX_SharedScripts_RowVersion] ON [SharedScripts] ([RowVersion]);
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CREATE INDEX [IX_Instances_RowVersion] ON [Instances] ([RowVersion]);
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CREATE INDEX [IX_InstanceNativeAlarmSourceOverrides_RowVersion] ON [InstanceNativeAlarmSourceOverrides] ([RowVersion]);
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CREATE INDEX [IX_InstanceConnectionBindings_RowVersion] ON [InstanceConnectionBindings] ([RowVersion]);
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CREATE INDEX [IX_InstanceAttributeOverrides_RowVersion] ON [InstanceAttributeOverrides] ([RowVersion]);
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CREATE INDEX [IX_InstanceAlarmOverrides_RowVersion] ON [InstanceAlarmOverrides] ([RowVersion]);
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CREATE INDEX [IX_ExternalSystemMethods_RowVersion] ON [ExternalSystemMethods] ([RowVersion]);
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CREATE INDEX [IX_ExternalSystemDefinitions_RowVersion] ON [ExternalSystemDefinitions] ([RowVersion]);
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CREATE INDEX [IX_DeployedConfigSnapshots_RowVersion] ON [DeployedConfigSnapshots] ([RowVersion]);
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CREATE INDEX [IX_DataConnections_RowVersion] ON [DataConnections] ([RowVersion]);
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CREATE INDEX [IX_DatabaseConnectionDefinitions_RowVersion] ON [DatabaseConnectionDefinitions] ([RowVersion]);
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INSERT INTO [__EFMigrationsHistory] ([MigrationId], [ProductVersion])
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VALUES (N'20261110032839_AddConfigGraphRowVersions', N'10.0.13');
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COMMIT;
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GO
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