More performant random quote fetching

Genfic · Jul 6, 2024 · 436b28f · 436b28f
1 parent 3fcdcdc
commit 436b28f
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Showing 5 changed files with 2,289 additions and 2 deletions.
diff --git a/Ogma3/Api/V1/Quotes/Queries/GetRandom.cs b/Ogma3/Api/V1/Quotes/Queries/GetRandom.cs
@@ -21,7 +21,7 @@ public async ValueTask<ActionResult<QuoteDto>> Handle(Query request, Cancellatio
 			var quote = await context.Database.SqlQueryRaw<QuoteDto>("""
 			    SELECT q."Author", q."Body"
 			    FROM "Quotes" q
-			    TABLESAMPLE bernoulli(.5)
+			    TABLESAMPLE SYSTEM_ROWS(1)
 			    LIMIT 1
 			    """)
 				.FirstOrDefaultAsync(cancellationToken);

diff --git a/Ogma3/Data/ApplicationDbContext.cs b/Ogma3/Data/ApplicationDbContext.cs
@@ -111,7 +111,9 @@ protected override void OnModelCreating(ModelBuilder builder)
 		base.OnModelCreating(builder);
 
 		// Extensions
-		builder.HasPostgresExtension("uuid-ossp");
+		builder
+			.HasPostgresExtension("uuid-ossp")
+			.HasPostgresExtension("tsm_system_rows");
 
 		// Register all enums with `[PostgresEnum]` attribute
 		builder.RegisterPostgresEnums();