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4ee43b8afc
Import the committed KnowledgeFS snapshot dc4072ee302317145612087ce7440851dc329fd0 under knowledge-fs/ without its Git history, local IDE settings, or build artifacts.
53 lines
2.2 KiB
SQL
53 lines
2.2 KiB
SQL
-- Knowledge Platform schema migration
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-- Migration id: 0003_projection_set_publications
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-- Dialect: postgres
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-- A publication is an immutable, tenant-scoped candidate generation. The mutable head lives in a
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-- separate row so publication is one compare-and-swap instead of a sequence of visible row flips.
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CREATE TABLE IF NOT EXISTS "projection_set_publications" (
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"id" UUID PRIMARY KEY NOT NULL,
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"tenant_id" VARCHAR(255) NOT NULL,
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"knowledge_space_id" UUID NOT NULL,
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"fingerprint" VARCHAR(86) NOT NULL,
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"projection_version" INTEGER NOT NULL,
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"status" VARCHAR(16) NOT NULL,
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"superseded_by_fingerprint" VARCHAR(86),
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"metadata" JSONB NOT NULL,
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"created_at" TIMESTAMPTZ NOT NULL,
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"updated_at" TIMESTAMPTZ NOT NULL,
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FOREIGN KEY ("knowledge_space_id") REFERENCES "knowledge_spaces" ("id") ON DELETE CASCADE
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);
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CREATE UNIQUE INDEX IF NOT EXISTS "projection_set_publications_space_fingerprint_uq"
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ON "projection_set_publications" ("tenant_id", "knowledge_space_id", "fingerprint");
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CREATE UNIQUE INDEX IF NOT EXISTS "projection_set_publications_space_id_uq"
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ON "projection_set_publications" ("tenant_id", "knowledge_space_id", "id");
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CREATE INDEX IF NOT EXISTS "projection_set_publications_space_status_updated_idx"
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ON "projection_set_publications" (
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"tenant_id",
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"knowledge_space_id",
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"status",
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"updated_at",
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"fingerprint",
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"id"
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);
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CREATE TABLE IF NOT EXISTS "projection_set_publication_heads" (
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"id" UUID PRIMARY KEY NOT NULL,
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"tenant_id" VARCHAR(255) NOT NULL,
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"knowledge_space_id" UUID NOT NULL,
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"publication_id" UUID NOT NULL,
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"head_revision" INTEGER NOT NULL,
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"created_at" TIMESTAMPTZ NOT NULL,
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"updated_at" TIMESTAMPTZ NOT NULL,
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FOREIGN KEY ("knowledge_space_id") REFERENCES "knowledge_spaces" ("id") ON DELETE CASCADE,
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FOREIGN KEY ("tenant_id", "knowledge_space_id", "publication_id")
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REFERENCES "projection_set_publications" ("tenant_id", "knowledge_space_id", "id")
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ON DELETE RESTRICT
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);
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CREATE UNIQUE INDEX IF NOT EXISTS "projection_set_publication_heads_space_uq"
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ON "projection_set_publication_heads" ("tenant_id", "knowledge_space_id");
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CREATE UNIQUE INDEX IF NOT EXISTS "projection_set_publication_heads_publication_uq"
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ON "projection_set_publication_heads" ("publication_id");
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