compile_* session settings

View as MarkdownEdit this pageReport an issueSet up docs MCP

These settings are available in system.settings and are autogenerated from source.

compile_aggregate_expressions

Type

Bool

Default

1

Enables or disables JIT-compilation of aggregate functions to native code. Enabling this setting can improve the performance.

Possible values:

0 — Aggregation is done without JIT compilation.
1 — Aggregation is done using JIT compilation.

See Also

min_count_to_compile_aggregate_expression

compile_expressions

Type

Bool

Default

1

Version history

Version	Default value	Comment
25.5	1	We believe that the LLVM infrastructure behind the JIT compiler is stable enough to enable this setting by default.

Compile some scalar functions and operators to native code.

compile_regular_expressions

Type

Bool

Default

1

Version history

Version	Default value	Comment
26.7	1	New setting to enable JIT compilation of simple regular expressions in functions like `match` and `extract`.

Compile simple regular expressions used in functions like match and extract to native code. Patterns outside the supported subset transparently fall back to the general engine.

compile_sort_description

Type

Bool

Default

1

Compile sort description to native code.