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perf(api): index the module join tables #366

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perf(api): index the module join tables #366

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4 changes: 4 additions & 0 deletions apps/api/migrations/000014_module_join_indexes.down.sql
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Original file line number Diff line number Diff line change
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DROP INDEX IF EXISTS idx_module_issues_module;
DROP INDEX IF EXISTS idx_module_issues_issue;
DROP INDEX IF EXISTS idx_module_members_module;
DROP INDEX IF EXISTS idx_module_links_module;
8 changes: 8 additions & 0 deletions apps/api/migrations/000014_module_join_indexes.up.sql
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-- The module join tables had no indexes, so every lookup by module_id or
-- issue_id did a sequential scan (ListModuleIssueIDs, RemoveModuleIssue,
-- CountIssuesByModuleIDs, ListMemberIDsByModuleIDs, the progress join, etc.).
-- The cycle join tables already have the equivalent indexes; add them here.
CREATE INDEX IF NOT EXISTS idx_module_issues_module ON module_issues (module_id);
CREATE INDEX IF NOT EXISTS idx_module_issues_issue ON module_issues (issue_id);
CREATE INDEX IF NOT EXISTS idx_module_members_module ON module_members (module_id);
CREATE INDEX IF NOT EXISTS idx_module_links_module ON module_links (module_id);
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