Do not materialize Vector on get size (#53)

Scooletz · web-flow · commit 7558a3db6a35 · 2025-05-10T10:20:58.000-07:00
diff --git a/src/Pgvector/Npgsql/VectorConverter.cs b/src/Pgvector/Npgsql/VectorConverter.cs
@@ -50,7 +50,7 @@ public override async ValueTask<Vector> ReadAsync(PgReader reader, CancellationT
     }
 
     public override Size GetSize(SizeContext context, Vector value, ref object? writeState)
-        => sizeof(ushort) * 2 + sizeof(float) * value.ToArray().Length;
+        => sizeof(ushort) * 2 + sizeof(float) * value.Memory.Length;
 
     public override void Write(PgWriter writer, Vector value)
     {

Original file line number	Diff line number	Diff line change
`@@ -50,7 +50,7 @@ public override async ValueTask<Vector> ReadAsync(PgReader reader, CancellationT`
`50`	`50`	`}`
`51`	`51`
`52`	`52`	`public override Size GetSize(SizeContext context, Vector value, ref object? writeState)`
`53`		`- => sizeof(ushort) * 2 + sizeof(float) * value.ToArray().Length;`
	`53`	`+ => sizeof(ushort) * 2 + sizeof(float) * value.Memory.Length;`
`54`	`54`
`55`	`55`	`public override void Write(PgWriter writer, Vector value)`
`56`	`56`	`{`