Set up docs MCPThese settings are available in system.settings and are autogenerated from source.
unique_key_max_encoded_size
Experimental featureType
UInt64
Default
256
Version history
| Version | Default value | Comment |
|---|---|---|
| 26.6 | 256 | New setting: maximum size (bytes) of the order-preserving binary encoding of a single UNIQUE KEY row |
Maximum size (in bytes) of the order-preserving binary encoding of a single UNIQUE KEY row.
unique_key_probe_implementation
Experimental featureType
UniqueKeyProbeImplementation
Default
auto
Version history
| Version | Default value | Comment |
|---|---|---|
| 26.8 | auto | New setting: selects the UNIQUE KEY probe implementation (currently only the simple baseline exists) |
Selects the UNIQUE KEY write-path probe implementation. Currently only a single-threaded
baseline exists, so auto and simple both resolve to it.
Reserved: this setting has no effect yet — the value is not read until the UNIQUE KEY INSERT write path that constructs the probe is wired up. Declared now so the lever ships with the implementation.