Module query 

Query request/response types and Arrow → JSON conversion.

Structs

QueryRequest

Incoming SQL query from CLI or UI.

QueryResponse

Tabular result returned to callers (legacy engine path).

QueryResult

Rich result returned by crate::execute_query for large-dataset workloads.

QueryResultSet

Intermediate conversion helper.

Functions

batch_to_json_values

Convert a record batch into JSON objects (column name → value).