Function batch

datafusion/datasource/src/memory.rs:1006–1011

(row_size: usize)

    }

    fn batch(row_size: usize) -> RecordBatch {
        let a: ArrayRef = Arc::new(Int32Array::from(vec![1; row_size]));
        let b: ArrayRef = Arc::new(StringArray::from_iter(vec![Some("foo"); row_size]));
        let c: ArrayRef = Arc::new(Int64Array::from_iter(vec![1; row_size]));
        RecordBatch::try_from_iter(vec![("a", a), ("b", b), ("c", c)]).unwrap()
    }

    fn schema() -> SchemaRef {
        batch(1).schema()