https://mariadb.com/docs/server/reference/sql-functions/vector-functions/vector-functions-vec_distance
VEC_DISTANCE | Server | MariaDB Documentation
Calculate distance between vectors. This function computes the distance between two vectors using either Euclidean or Cosine metric, depending on the index.
server mariadb documentation
https://jira.mariadb.org/browse/MDEV-35450
[MDEV-35450] VEC_DISTANCE() function to autouse the available index type - Jira
vec distancemdevfunctionindex
https://mariadb.com/docs/server/reference/sql-functions/vector-functions/vec_distance_euclidean
VEC_DISTANCE_EUCLIDEAN | Server | MariaDB Documentation
Calculate Euclidean distance. This function computes the Euclidean (L2) distance between two vectors, representing the straight-line distance.
server mariadb documentation