Function create_table_index 

pub async fn create_table_index(
    configuration: &Configuration,
    id: &str,
    create_table_index_request: CreateTableIndexRequest,
    delimiter: Option<&str>,
) -> Result<CreateTableIndexResponse, Error<CreateTableIndexError>>

Create an index on a table column for faster search operations. Supports vector indexes (IVF_FLAT, IVF_HNSW_SQ, IVF_PQ, etc.) and scalar indexes (BTREE, BITMAP, FTS, etc.). Index creation is handled asynchronously. Use the ListTableIndices and DescribeTableIndexStats operations to monitor index creation progress.