Struct GroupedQueryFn 

pub struct GroupedQueryFn<'a> {
    pub analyzed: &'a AnalyzedQuery,
    pub parent_struct_name: &'a str,
    pub child_struct_name: &'a str,
    pub all_columns: &'a [ResolvedColumn],
    pub parent_columns: &'a [ResolvedColumn],
    pub child_columns: &'a [ResolvedColumn],
    pub params: &'a [ResolvedParam],
    pub key_column: &'a str,
}

Inputs for CodegenBackend::generate_grouped_query_fn.

The grouped query-fn contract carries enough context (analyzed query, both struct names, the flat and split column sets, params, and the grouping key) that passing it positionally trips clippy::too_many_arguments. Bundling it into one struct keeps the per-language implementations uniform as backends opt in to grouped codegen.

Fields

analyzed: &'a AnalyzedQuery

Full analyzed query (SQL, name, params, optional_params, deprecated, …).

parent_struct_name: &'a str

Name of the generated parent struct.

child_struct_name: &'a str

Name of the generated child struct.

all_columns: &'a [ResolvedColumn]

All resolved columns in flat SELECT order; used for row decoding.

parent_columns: &'a [ResolvedColumn]

Resolved columns belonging to the parent struct.

child_columns: &'a [ResolvedColumn]

Resolved columns belonging to the child struct(s).

params: &'a [ResolvedParam]

Resolved query parameters.

key_column: &'a str

Grouping key column name in the flat result row (matches scythe_core::analyzer::GroupByConfig::key_column).