# Spider Differences Between SpiderForMySQL and MariaDB

### SQL Syntax

* With `SpiderForMySQL`, the [CREATE TABLE](https://mariadb.com/docs/server/server-usage/tables/create-table) statement uses `CONNECTION` to define spider table variables whereas MariaDB uses `COMMENT`.

### Features

* [HANDLER](https://mariadb.com/docs/server/reference/sql-structure/nosql/handler) can not be translated to SQL in MariaDB
* Concurrent background search is not yet implemented in MariaDB
* Vertical partitioning storage engine VP is not implemented in MariaDB
* `CREATE TABLE` can use [table discovery](https://mariadb.com/docs/server/reference/product-development/plugin-development/storage-engines-storage-engine-development/table-discovery) in MariaDB
* [JOIN](https://mariadb.com/docs/server/reference/sql-statements/data-manipulation/selecting-data/joins/join-syntax) performance improvement using [join\_cache\_level](https://mariadb.com/docs/server/server-management/variables-and-modes/server-system-variables#join_cache_level)>1`and`[join\_buffer\_size](https://mariadb.com/docs/server/server-management/variables-and-modes/server-system-variables#join_buffer_size) in MariaDB

<sub>*This page is licensed: CC BY-SA / Gnu FDL*</sub>

{% @marketo/form formId="4316" %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://mariadb.com/docs/server/server-usage/storage-engines/spider/spider-differences-between-spiderformysql-and-mariadb.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.