14 lines
537 B
SQL
14 lines
537 B
SQL
-- Restore the legacy 1536-dimensional column. Embeddings with any other
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-- dimension cannot be represented and are cleared during rollback.
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ALTER TABLE article_embeddings
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ALTER COLUMN vector_embedding TYPE vector(1536)
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USING CASE
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WHEN vector_embedding IS NULL THEN NULL
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WHEN vector_dims(vector_embedding) = 1536 THEN vector_embedding::vector(1536)
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ELSE NULL
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END;
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CREATE INDEX IF NOT EXISTS idx_article_embeddings_vector
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ON article_embeddings USING ivfflat (vector_embedding vector_cosine_ops)
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WITH (lists = 100);
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