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4ee43b8afc
Import the committed KnowledgeFS snapshot dc4072ee302317145612087ce7440851dc329fd0 under knowledge-fs/ without its Git history, local IDE settings, or build artifacts.
42 lines
2.0 KiB
SQL
42 lines
2.0 KiB
SQL
-- Knowledge Platform schema migration
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-- Migration id: 0002_vector_index_upgrade
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-- Dialect: postgres
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-- Embedding dimensions are determined by the configured plugin model. Use typmod-free vector
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-- columns so one deployment can store projections from multiple model-specific vector spaces.
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-- Exact distance queries remain supported when they filter to the matching model. pgvector ANN
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-- indexes require a fixed-dimensional cast plus the same model predicate and therefore cannot be
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-- declared as one generic schema index.
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ALTER TABLE "index_projections" ADD COLUMN IF NOT EXISTS "dense_vector" vector;
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ALTER TABLE "index_projections" ADD COLUMN IF NOT EXISTS "visual_vector" vector;
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ALTER TABLE "index_projections" ADD COLUMN IF NOT EXISTS "fts_document" tsvector;
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ALTER TABLE "index_projections" ADD COLUMN IF NOT EXISTS "updated_at" TIMESTAMPTZ;
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DROP INDEX IF EXISTS "index_projections_dense_vector_hnsw_idx";
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DROP INDEX IF EXISTS "index_projections_visual_vector_hnsw_idx";
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ALTER TABLE "index_projections"
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ALTER COLUMN "dense_vector" TYPE vector
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USING "dense_vector"::vector,
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ALTER COLUMN "visual_vector" TYPE vector
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USING "visual_vector"::vector;
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-- Retry/redelivery in older releases could insert the same logical projection more than once.
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-- Retain the lexicographically greatest UUID deterministically before enforcing idempotency.
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DELETE FROM "index_projections" AS duplicate
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USING "index_projections" AS keeper
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WHERE duplicate."node_id" = keeper."node_id"
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AND duplicate."type" = keeper."type"
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AND duplicate."projection_version" = keeper."projection_version"
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AND COALESCE(duplicate."model", '') = COALESCE(keeper."model", '')
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AND duplicate."id" < keeper."id";
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CREATE UNIQUE INDEX IF NOT EXISTS "index_projections_node_type_version_model_uq"
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ON "index_projections" (
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"node_id",
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"type",
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"projection_version",
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(COALESCE("model", ''))
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);
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CREATE INDEX IF NOT EXISTS "index_projections_fts_document_idx"
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ON "index_projections" USING GIN ("fts_document");
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