Merge branch 'main' into cli-snap

# Conflicts:
#	datafusion/common/src/config.rs
#	datafusion/core/tests/config_from_env.rs
#	datafusion/sqllogictest/test_files/information_schema.slt
#	docs/source/user-guide/configs.md

.github/workflows/rust.yml

@@ -337,22 +337,26 @@ jobs:
         env:
           POSTGRES_PORT: ${{ job.services.postgres.ports[5432] }}
 
-  windows:
-    name: cargo test (win64)
-    runs-on: windows-latest
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          submodules: true
-      - name: Setup Rust toolchain
-        uses: ./.github/actions/setup-windows-builder
-      - name: Run tests (excluding doctests)
-        shell: bash
-        run: |
-          export PATH=$PATH:$HOME/d/protoc/bin
-          cargo test --lib --tests --bins --features avro,json,backtrace
-          cd datafusion-cli
-          cargo test --lib --tests --bins --all-features
+#  Temporarily commenting out the Windows flow, the reason is enormously slow running build
+#  Waiting for new Windows 2025 github runner
+#  Details: https://github.com/apache/datafusion/issues/13726
+#
+#  windows:
+#    name: cargo test (win64)
+#    runs-on: windows-latest
+#    steps:
+#      - uses: actions/checkout@v4
+#        with:
+#          submodules: true
+#      - name: Setup Rust toolchain
+#        uses: ./.github/actions/setup-windows-builder
+#      - name: Run tests (excluding doctests)
+#        shell: bash
+#        run: |
+#          export PATH=$PATH:$HOME/d/protoc/bin
+#          cargo test --lib --tests --bins --features avro,json,backtrace
+#          cd datafusion-cli
+#          cargo test --lib --tests --bins --all-features
 
   macos:
     name: cargo test (macos)

Cargo.toml

@@ -147,7 +147,7 @@ recursive = "0.1.1"
 regex = "1.8"
 rstest = "0.23.0"
 serde_json = "1"
-sqlparser = { version = "0.52.0", features = ["visitor"] }
+sqlparser = { version = "0.53.0", features = ["visitor"] }
 tempfile = "3"
 tokio = { version = "1.36", features = ["macros", "rt", "sync"] }
 url = "2.2"

datafusion-cli/src/exec.rs

@@ -33,11 +33,12 @@ use crate::{
 };
 
 use datafusion::common::instant::Instant;
-use datafusion::common::plan_datafusion_err;
+use datafusion::common::{plan_datafusion_err, plan_err};
 use datafusion::config::ConfigFileType;
 use datafusion::datasource::listing::ListingTableUrl;
 use datafusion::error::{DataFusionError, Result};
 use datafusion::logical_expr::{DdlStatement, LogicalPlan};
+use datafusion::physical_plan::execution_plan::EmissionType;
 use datafusion::physical_plan::{collect, execute_stream, ExecutionPlanProperties};
 use datafusion::sql::parser::{DFParser, Statement};
 use datafusion::sql::sqlparser::dialect::dialect_from_str;
@@ -234,10 +235,19 @@ pub(super) async fn exec_and_print(
         let df = ctx.execute_logical_plan(plan).await?;
         let physical_plan = df.create_physical_plan().await?;
 
-        if physical_plan.execution_mode().is_unbounded() {
+        if physical_plan.boundedness().is_unbounded() {
+            if physical_plan.pipeline_behavior() == EmissionType::Final {
+                return plan_err!(
+                    "The given query can generate a valid result only once \
+                    the source finishes, but the source is unbounded"
+                );
+            }
+            // As the input stream comes, we can generate results.
+            // However, memory safety is not guaranteed.
             let stream = execute_stream(physical_plan, task_ctx.clone())?;
             print_options.print_stream(stream, now).await?;
         } else {
+            // Bounded stream; collected results are printed after all input consumed.
             let schema = physical_plan.schema();
             let results = collect(physical_plan, task_ctx.clone()).await?;
             adjusted.into_inner().print_batches(schema, &results, now)?;

datafusion-examples/README.md

@@ -77,6 +77,7 @@ cargo run --example dataframe
 - [`query-aws-s3.rs`](examples/external_dependency/query-aws-s3.rs): Configure `object_store` and run a query against files stored in AWS S3
 - [`query-http-csv.rs`](examples/query-http-csv.rs): Configure `object_store` and run a query against files vi HTTP
 - [`regexp.rs`](examples/regexp.rs): Examples of using regular expression functions
+- [`remote_catalog.rs`](examples/regexp.rs): Examples of interfacing with a remote catalog (e.g. over a network)
 - [`simple_udaf.rs`](examples/simple_udaf.rs): Define and invoke a User Defined Aggregate Function (UDAF)
 - [`simple_udf.rs`](examples/simple_udf.rs): Define and invoke a User Defined Scalar Function (UDF)
 - [`simple_udfw.rs`](examples/simple_udwf.rs): Define and invoke a User Defined Window Function (UDWF)

datafusion-examples/examples/custom_datasource.rs

@@ -30,10 +30,11 @@ use datafusion::error::Result;
 use datafusion::execution::context::TaskContext;
 use datafusion::logical_expr::LogicalPlanBuilder;
 use datafusion::physical_expr::EquivalenceProperties;
+use datafusion::physical_plan::execution_plan::{Boundedness, EmissionType};
 use datafusion::physical_plan::memory::MemoryStream;
 use datafusion::physical_plan::{
-    project_schema, DisplayAs, DisplayFormatType, ExecutionMode, ExecutionPlan,
-    Partitioning, PlanProperties, SendableRecordBatchStream,
+    project_schema, DisplayAs, DisplayFormatType, ExecutionPlan, Partitioning,
+    PlanProperties, SendableRecordBatchStream,
 };
 use datafusion::prelude::*;
 
@@ -214,7 +215,8 @@ impl CustomExec {
         PlanProperties::new(
             eq_properties,
             Partitioning::UnknownPartitioning(1),
-            ExecutionMode::Bounded,
+            EmissionType::Incremental,
+            Boundedness::Bounded,
         )
     }
 }