Only generate data if looking for local data

Signed-off-by: Adam Gutglick <[email protected]>

Author: AdamGS

benchmarks/ddb-bench/src/main.rs

@@ -83,11 +83,10 @@ async fn main() -> anyhow::Result<()> {
         args.exclude_queries.as_ref(),
     );
 
-    // Generate base Parquet data first - all formats derive from this
-    benchmark.generate_base_data().await?;
-
     // Generate Vortex files from Parquet for any Vortex formats requested
     if benchmark.data_url().scheme() == "file" {
+        benchmark.generate_base_data().await?;
+
         let base_path = benchmark
             .data_url()
             .to_file_path()

benchmarks/df-bench/src/main.rs

@@ -109,10 +109,10 @@ async fn main() -> anyhow::Result<()> {
         args.exclude_queries.as_ref(),
     );
 
-    benchmark.generate_base_data().await?;
-
     // Generate Vortex files from Parquet for any Vortex formats requested
     if benchmark.data_url().scheme() == "file" {
+        benchmark.generate_base_data().await?;
+
         let base_path = benchmark
             .data_url()
             .to_file_path()