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docs: show PostgreSQL query option syntax

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Signed-off-by: discord9 <55937128+discord9@users.noreply.github.com>
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discord9
2026-10-09 17:59:01 +08:00
parent 7460cf6d9e
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docs/how-to/query-options.md
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@@ -23,7 +23,8 @@ SHOW VARIABLES query.allow_query_fallback;
SET datafusion.optimizer.repartition_joins = false;
```
`SHOW VARIABLES <option>` shows the effective value. Boolean values must be
`SHOW VARIABLES <option>` shows the effective value. PostgreSQL also accepts
`SET query.parallelism TO 4` and `SHOW query.parallelism`. Boolean values must be
`true` or `false`. Unknown, unsupported, and non-allowlisted DataFusion options
are rejected; arbitrary DataFusion configuration is not enabled.