"Avertissements: Colonnes Avec Statistiques" sur l'index spatial

Question

J'ai un SQL Server 2008 R2 avec la machine d'une table avec 2 colonnes:

• Une pièce d'identité (clé primaire en cluster)
• pour un données géographiques

J'ai créé un index spatial sur le second, mais lorsque je veux interroger le "plus proche voisin" j'ai reçu un avertissement "Colonnes sans statistiques".

Mon code est comme ça:

CREATE TABLE Links 
(Id BIGINT NOT NULL, 
Link GEOGRAPHY NULL, 
CONSTRAINT PK_Links PRIMARY KEY CLUSTERED(Id) 
); 
GO 
CREATE SPATIAL INDEX LinksSpatialIndex ON Links(Link); 
GO 
--Fill table 
GO 
DECLARE @Link GEOGRAPHY= 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
SELECT TOP 10 * 
FROM Links WITH (INDEX(LinksSpatialIndex)) 
WHERE Link.STDistance(@Link) IS NOT NULL 
ORDER BY Link.STDistance(@Link); 

Merci pour tous

Answer 1

Cet avertissement, tout en vrai, n'a pas d'importance. MS SQL ne stocke pas de statistiques pour les colonnes spatiales.