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Update NON_DETERMINISTIC_FUNCTIONS.md

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Philip O'Toole
2022-09-04 17:55:05 -04:00
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DOC/NON_DETERMINISTIC_FUNCTIONS.md
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@@ -25,10 +25,10 @@ An rqlite node addresses this issue by _rewriting_ received SQL statements that
### `RANDOM()`
> :warning: **This functionality was introduced in version 7.7.0. It does not exist in earlier releases.**
Any SQL statement containing `RANDOM()` is rewritten under any of the following circumstances:
Any SQL statement containing `RANDOM()` is rewritten following these resuls:
- the statement is part of a write-request i.e. the request is sent to the `/db/execute` HTTP API.
- the statement is part of a read-request i.e. the request is sent to the `/db/query` HTTP API **and** the read-request is made with _strong_ read consistency.
- `RANDOM()` is not used as an `ORDER BY` qualifier.
- if `RANDOM()` is used as an `ORDER BY` qualifier it is not rewritten.
`RANDOM()` is replaced with a random integer between -9223372036854775808 and +9223372036854775807 by the rqlite node that first receives the SQL statement.