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Clarify exists() function: property existence only, not graph patterns #397

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Clarify exists() function: property existence only, not graph patterns #397

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Copilot Mar 21, 2026
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docs: clarify exists() only supports property existence checks, not g…
Copilot Mar 21, 2026
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2 changes: 1 addition & 1 deletion cypher/functions.md
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Expand Up @@ -30,7 +30,7 @@ This section contains information on all supported functions from the Cypher que
| --------------------------------------------------------------------------------- | :----------|
| [all(_var_ IN _list_ WHERE _predicate_)](#existential-comprehension-functions) | Returns true when _predicate_ holds true for all elements in _list_ |
| [any(_var_ IN _list_ WHERE _predicate_)](#existential-comprehension-functions) | Returns true when _predicate_ holds true for at least one element in _list_ |
| exists(_pattern_) | Returns true when at least one match for _pattern_ exists |
| exists(_entity.property_) | Returns true when the specified property exists on a given node or relationship <br> **Note:** Graph patterns such as `exists((n)-[]->())` are not supported. To filter by graph patterns, use [pattern predicates](/cypher/where#pattern-predicates) directly in the `WHERE` clause instead (see [FalkorDB#1315](https://github.com/FalkorDB/FalkorDB/issues/1315)) |
| isEmpty(_list_&#124;_map_&#124;_string_) | Returns true if the input list or map contains no elements or if the input string contains no characters <br> Returns null when the input evaluates to null |
| [none(_var_ IN _list_ WHERE _predicate_)](#existential-comprehension-functions) | Returns true when _predicate_ holds false for all elements in _list_ |
| [single(_var_ IN _list_ WHERE _predicate_)](#existential-comprehension-functions) | Returns true when _predicate_ holds true for exactly one element in _list_ |
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