re_query: remove polars and general dependency/features clean up

crates/re_data_store/Cargo.toml

@@ -66,7 +66,6 @@ polars-ops = { workspace = true, optional = true, features = [
 
 
 [dev-dependencies]
-re_log_types = { workspace = true, features = ["testing"] }
 re_types = { workspace = true, features = ["datagen", "testing"] }
 
 anyhow.workspace = true

crates/re_entity_db/Cargo.toml

@@ -49,7 +49,6 @@ web-time.workspace = true
 
 [dev-dependencies]
 re_log_encoding = { workspace = true, features = ["decoder", "encoder"] }
-re_log_types = { workspace = true, features = ["testing"] }
 re_types = { workspace = true, features = ["datagen"] }
 
 anyhow.workspace = true

crates/re_log_types/Cargo.toml

@@ -28,8 +28,6 @@ serde = [
   "re_types_core/serde",
 ]
 
-testing = []
-
 [dependencies]
 
 # Rerun

crates/re_log_types/src/data_table.rs

@@ -1302,7 +1302,6 @@ impl DataTable {
 
 /// Crafts a simple but interesting [`DataTable`].
 #[cfg(not(target_arch = "wasm32"))]
-#[cfg(feature = "testing")]
 impl DataTable {
     pub fn example(timeless: bool) -> DataTable {
         use crate::{

crates/re_log_types/src/lib.rs

@@ -21,7 +21,6 @@ pub mod arrow_msg;
 mod data_cell;
 mod data_row;
 mod data_table;
-#[cfg(feature = "testing")]
 pub mod example_components;
 pub mod hash;
 mod num_instances;

crates/re_query/Cargo.toml

@@ -19,11 +19,6 @@ all-features = true
 [features]
 default = []
 
-## Polars support
-polars = ["dep:polars-core", "re_data_store/polars"]
-
-testing = ["re_log_types/testing"]
-
 [dependencies]
 # Rerun dependencies:
 re_data_store.workspace = true
@@ -42,26 +37,13 @@ itertools = { workspace = true }
 smallvec.workspace = true
 thiserror.workspace = true
 
-# Optional dependencies:
-polars-core = { workspace = true, optional = true, features = [
-  "dtype-date",
-  "dtype-time",
-  "dtype-struct",
-] }
-
 
 [dev-dependencies]
 re_types = { workspace = true, features = ["datagen"] }
 
 criterion.workspace = true
 itertools = { workspace = true }
 mimalloc.workspace = true
-polars-core = { workspace = true, features = [
-  "dtype-date",
-  "dtype-time",
-  "dtype-struct",
-  "fmt",
-] }
 rand = { workspace = true, features = ["std", "std_rng"] }
 
 [lib]

crates/re_query/src/archetype_view.rs

@@ -19,6 +19,20 @@ pub struct ComponentWithInstances {
     pub(crate) values: DataCell,
 }
 
+impl std::fmt::Display for ComponentWithInstances {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let table = arrow::format_table(
+            [
+                self.instance_keys.as_arrow_ref(),
+                self.values.as_arrow_ref(),
+            ],
+            ["InstanceKey", self.values.component_name().as_ref()],
+        );
+
+        f.write_fmt(format_args!("ComponentWithInstances:\n{table}"))
+    }
+}
+
 impl ComponentWithInstances {
     /// Name of the [`Component`]
     #[inline]

crates/re_query/src/lib.rs

@@ -1,26 +1,17 @@
 //! Provide query-centric access to the [`re_data_store`].
-//!
-//! ## Feature flags
-#![doc = document_features::document_features!()]
-//!
-
-// TODO(jleibs) better crate documentation.
 
 mod archetype_view;
 mod query;
 mod range;
 mod util;
 
-#[cfg(feature = "polars")]
-pub mod dataframe_util;
-
 pub use self::archetype_view::{ArchetypeView, ComponentWithInstances};
 pub use self::query::{get_component_with_instances, query_archetype};
 pub use self::range::range_archetype;
 pub use self::util::query_archetype_with_history;
 
 // Used for doc-tests
-#[cfg(feature = "testing")]
+#[doc(hidden)]
 pub use self::query::__populate_example_store;
 
 #[derive(Debug, Clone, Copy)]
@@ -63,10 +54,6 @@ pub enum QueryError {
     #[error("Error converting arrow data: {0}")]
     ArrowError(#[from] arrow2::error::Error),
 
-    #[cfg(feature = "polars")]
-    #[error("Error from within Polars")]
-    PolarsError(#[from] polars_core::prelude::PolarsError),
-
     #[error("Not implemented")]
     NotImplemented,
 }