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You can't do this. YOU CAN NOT #695

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You can't do this. YOU CAN NOT #695

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10 changes: 10 additions & 0 deletions docs-2.0/20.appendix/0.FAQ.md
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Expand Up @@ -144,6 +144,16 @@ See [show-stats](../3.ngql-guide/7.general-query-statements/6.show/14.show-stats

For more information, see [`INDEX`](../3.ngql-guide/14.native-index-statements/1.create-native-index.md), [`LOOKUP`](../3.ngql-guide/7.general-query-statements/5.lookup.md), and [`MATCH`](../3.ngql-guide/7.general-query-statements/2.match.md).

### "How to get all the vertices/edges without specifying the types?"

By nGQL, you CAN NOT directly getting all the vertices without specifying the tags, neither the edges.

E.g., You CAN NOT run `MATCH (n) RETURN (n)`. An error like `can’t solve the start vids from the sentence` will be returned.

You can use [Nebula Algorithm](../nebula-algorithm.md).

Or get vertices by each tag, and then group them by yourself.

### "How to resolve the error `can’t solve the start vids from the sentence`?"

The graphd process requires `start vids` to begin a graph traversal. The `start vids` can be specified by the user. For example:
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