> For the complete documentation index, see [llms.txt](https://mariadb.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mariadb.com/docs/server/reference/sql-statements/geometry-constructors/geometry-properties/st_issimple.md).

# ST\_IsSimple

## Syntax

```bnf
ST_IsSimple(g)
IsSimple(g)
```

## Description

Returns true if the given Geometry has no anomalous geometric points, false if it does, or NULL if given a NULL value.

ST\_IsSimple() and IsSimple() are synonyms.

## Examples

A POINT is always simple.

```sql
SET @g = 'Point(1 2)';

SELECT ST_ISSIMPLE(GEOMFROMTEXT(@g));
+-------------------------------+
| ST_ISSIMPLE(GEOMFROMTEXT(@g)) |
+-------------------------------+
|                             1 |
+-------------------------------+
```

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