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• cache-schema-pgsql.sql

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org.aksw.jena_sparql_api.cache.cache-schema-pgsql.sql Maven / Gradle / Ivy

-- Empty - schema currently gets generated by hibernate

CREATE TABLE IF NOT EXISTS "query_cache"(
    "id" VARCHAR(33) PRIMARY KEY, -- ID is usually an MD5 hash of the query string
    "query_string" text, -- The query string is kept for reference
    "data" text, -- The result set
    "hit_count" int NOT NULL, -- Counter for how ofter the cache entry was hit
    "time_of_insertion" TIMESTAMP,
    "time_of_expiration" TIMESTAMP
);


CREATE INDEX IF NOT EXISTS "idx_query_cache_time_of_expiration" ON "query_cache"("time_of_expiration");
CREATE INDEX IF NOT EXISTS "idx_query_cache_hit_count" ON "query_cache"("hit_count");