From c0919bc26ae7449dc7448b959449394372affbae Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Mon, 27 Jul 2026 20:38:17 -0700
Subject: [PATCH] Added nnz check for vector/halfvec to sparsevec casts (in
 case limits change in future) [skip ci]

Co-authored-by: 0xJi3F
---
 src/sparsevec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/sparsevec.c b/src/sparsevec.c
index 2e99ce9..656a6cc 100644
--- a/src/sparsevec.c
+++ b/src/sparsevec.c
@@ -614,6 +614,7 @@ vector_to_sparsevec(PG_FUNCTION_ARGS)
 			nnz++;
 	}
 
+	CheckNnz(nnz, dim);
 	result = InitSparseVector(dim, nnz);
 	values = SPARSEVEC_VALUES(result);
 	for (int i = 0; i < dim; i++)
@@ -657,6 +658,7 @@ halfvec_to_sparsevec(PG_FUNCTION_ARGS)
 			nnz++;
 	}
 
+	CheckNnz(nnz, dim);
 	result = InitSparseVector(dim, nnz);
 	values = SPARSEVEC_VALUES(result);
 	for (int i = 0; i < dim; i++)