[SR-31450] query from table with vector index return internal error when enable_experimental_vector = false

[andyziye]

Steps to reproduce the behavior (Required)

create database test_vector_indexdf9244fa_d244_11ef_a814_00163e21975a;
use test_vector_indexdf9244fa_d244_11ef_a814_00163e21975a;
set enable_profile = true;
ADMIN SET FRONTEND CONFIG ("enable_experimental_vector" = "true");
CREATE TABLE t_test_vector_table (
    id bigint(20) NOT NULL COMMENT "",
    vector ARRAY<FLOAT> NOT NULL COMMENT "",
    INDEX index_vector (vector) USING VECTOR (
        "index_type" = "hnsw", 
        "dim"="4", 
        "metric_type" = "l2_distance", 
        "is_vector_normed" = "false", 
        "M" = "2",
        "efconstruction" = "2"
    )
) ENGINE=OLAP
DUPLICATE KEY(id)
DISTRIBUTED BY HASH(id) BUCKETS 1
PROPERTIES (
    "replication_num" = "1",
    "enable_persistent_index" = "false",
    "replicated_storage" = "false",
    "compression" = "LZ4"
);
insert into t_test_vector_table values 
            (1, [1.0, 2.0, 3.0, 4.0]),
            (2, [1.1, 2.1, 3.1, 4.1]),
            (3, [1.2, 2.2, 3.2, 4.2]),
            (4, [10.0, 10.0, 10.0, 10.0]),
            (5, [10.1, 10.1, 10.1, 10.1]),
            (6, [10.2, 10.2, 10.2, 10.2]),
            (7, [5.0, 5.0, 5.0, 5.0]),
            (8, [5.1, 5.1, 5.1, 5.1]),
            (9, [0.5, 0.5, 0.5, 0.5]),
            (10, [0.6, 0.6, 0.6, 0.6])

        ;

>select id from t_test_vector_table order by approx_l2_distance([10.0, 10.0, 10.0, 10.0], vector) limit 5;

+----+
| id |
+----+
| 4  |
| 5  |
| 6  |
| 8  |
| 7  |
+----+
5 rows in set

>ADMIN SET FRONTEND CONFIG ("enable_experimental_vector" = "false")
Query OK, 0 rows affected

>select id from t_test_vector_table order by approx_l2_distance([10.0, 10.0, 10.0, 10.0], vector) limit 5;
(1064, "Internal error: [2025-01-14 15:13:50] /root/tenann/tenann/searcher/faiss_hnsw_ann_searcher.cc:304: Error: Error in virtual void faiss::IndexHNSW::search(faiss::Index::idx_t, const float*, faiss::Index::idx_t, float*, faiss::Index::idx_t*, const faiss::SearchParameters*) const at

Expected behavior (Required)

Real behavior (Required)

An unknown error is returned when enable_experimental_vector is set to false before query.

StarRocks version (Required)

• You can get the StarRocks version by executing SQL select current_version()
  +-------------------+
  | current_version() |
  +-------------------+
  | main-e446727 |
  +-------------------+