Merge remote-tracking branch 'elastic/main' into flatten-releasables

Author: original-brownbear

.buildkite/pipelines/periodic-fwc.template.yml

@@ -0,0 +1,15 @@
+steps:
+  - label: $FWC_VERSION / fwc
+    command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v$FWC_VERSION#fwcTest -Dtests.bwc.snapshot=false
+    timeout_in_minutes: 300
+    agents:
+      provider: gcp
+      image: family/elasticsearch-ubuntu-2004
+      machineType: n1-standard-32
+      buildDirectory: /dev/shm/bk
+      preemptible: true
+    matrix:
+      setup:
+        FWC_VERSION: $FWC_LIST
+    env:
+      FWC_VERSION: $FWC_VERSION

.buildkite/pipelines/periodic-fwc.yml

@@ -0,0 +1,16 @@
+# This file is auto-generated. See .buildkite/pipelines/periodic-fwc.template.yml
+steps:
+  - label: "{{matrix.FWC_VERSION}} / fwc"
+    command: .ci/scripts/run-gradle.sh -Dbwc.checkout.align=true v$$FWC_VERSION#fwcTest -Dtests.bwc.snapshot=false
+    timeout_in_minutes: 300
+    agents:
+      provider: gcp
+      image: family/elasticsearch-ubuntu-2004
+      machineType: n1-standard-32
+      buildDirectory: /dev/shm/bk
+      preemptible: true
+    matrix:
+      setup:
+        FWC_VERSION: []
+    env:
+      FWC_VERSION: "{{matrix.FWC_VERSION}}"

.buildkite/scripts/branches.sh

@@ -2,3 +2,7 @@
 
 # This determines which branches will have pipelines triggered periodically, for dra workflows.
 BRANCHES=( $(cat branches.json | jq -r '.branches[].branch') )
+
+# Sort them to make ordering predictable
+IFS=$'\n' BRANCHES=($(sort <<<"${BRANCHES[*]}"))
+unset IFS

.buildkite/scripts/periodic.trigger.sh

@@ -46,4 +46,15 @@ EOF
       branch: "$BRANCH"
       commit: "$LAST_GOOD_COMMIT"
 EOF
+# Include forward compatibility tests only for the bugfix branch
+if [[ "${BRANCH}" == "${BRANCHES[2]}" ]]; then
+  cat <<EOF
+  - trigger: elasticsearch-periodic-fwc
+    label: Trigger periodic-fwc pipeline for $BRANCH
+    async: true
+    build:
+      branch: "$BRANCH"
+      commit: "$LAST_GOOD_COMMIT"
+EOF
+fi
 done

benchmarks/src/main/java/org/elasticsearch/benchmark/compute/operator/EvalBenchmark.java

@@ -11,11 +11,14 @@
 
 import org.apache.lucene.util.BytesRef;
 import org.elasticsearch.common.breaker.NoopCircuitBreaker;
+import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.util.BigArrays;
 import org.elasticsearch.compute.data.Block;
 import org.elasticsearch.compute.data.BlockFactory;
 import org.elasticsearch.compute.data.BooleanBlock;
 import org.elasticsearch.compute.data.BooleanVector;
+import org.elasticsearch.compute.data.BytesRefBlock;
+import org.elasticsearch.compute.data.BytesRefVector;
 import org.elasticsearch.compute.data.DoubleBlock;
 import org.elasticsearch.compute.data.DoubleVector;
 import org.elasticsearch.compute.data.LongBlock;
@@ -40,9 +43,13 @@
 import org.elasticsearch.xpack.esql.expression.function.scalar.multivalue.MvMin;
 import org.elasticsearch.xpack.esql.expression.function.scalar.nulls.Coalesce;
 import org.elasticsearch.xpack.esql.expression.function.scalar.string.RLike;
+import org.elasticsearch.xpack.esql.expression.function.scalar.string.ToLower;
+import org.elasticsearch.xpack.esql.expression.function.scalar.string.ToUpper;
 import org.elasticsearch.xpack.esql.expression.predicate.operator.arithmetic.Add;
 import org.elasticsearch.xpack.esql.expression.predicate.operator.comparison.Equals;
 import org.elasticsearch.xpack.esql.planner.Layout;
+import org.elasticsearch.xpack.esql.plugin.EsqlPlugin;
+import org.elasticsearch.xpack.esql.session.Configuration;
 import org.openjdk.jmh.annotations.Benchmark;
 import org.openjdk.jmh.annotations.BenchmarkMode;
 import org.openjdk.jmh.annotations.Fork;
@@ -56,8 +63,10 @@
 import org.openjdk.jmh.annotations.Warmup;
 
 import java.time.Duration;
+import java.time.ZoneOffset;
 import java.util.Arrays;
 import java.util.List;
+import java.util.Locale;
 import java.util.Map;
 import java.util.concurrent.TimeUnit;
 
@@ -106,7 +115,9 @@ public class EvalBenchmark {
             "long_equal_to_int",
             "mv_min",
             "mv_min_ascending",
-            "rlike" }
+            "rlike",
+            "to_lower",
+            "to_upper" }
     )
     public String operation;
 
@@ -169,7 +180,7 @@ private static EvalOperator.ExpressionEvaluator evaluator(String operation) {
                     new Coalesce(Source.EMPTY, lhs, List.of(f2)),
                     layout(f1, f2)
                 ).get(driverContext);
-                String desc = operation.endsWith("lazy") ? "CoalesceLazyEvaluator" : "CoalesceEagerEvaluator";
+                String desc = operation.endsWith("lazy") ? "CoalesceLongLazyEvaluator" : "CoalesceLongEagerEvaluator";
                 if (evaluator.toString().contains(desc) == false) {
                     throw new IllegalArgumentException("Evaluator was [" + evaluator + "] but expected one containing [" + desc + "]");
                 }
@@ -214,6 +225,16 @@ private static EvalOperator.ExpressionEvaluator evaluator(String operation) {
                 RLike rlike = new RLike(Source.EMPTY, keywordField, new RLikePattern(".ar"));
                 yield EvalMapper.toEvaluator(FOLD_CONTEXT, rlike, layout(keywordField)).get(driverContext);
             }
+            case "to_lower" -> {
+                FieldAttribute keywordField = keywordField();
+                ToLower toLower = new ToLower(Source.EMPTY, keywordField, configuration());
+                yield EvalMapper.toEvaluator(FOLD_CONTEXT, toLower, layout(keywordField)).get(driverContext);
+            }
+            case "to_upper" -> {
+                FieldAttribute keywordField = keywordField();
+                ToUpper toUpper = new ToUpper(Source.EMPTY, keywordField, configuration());
+                yield EvalMapper.toEvaluator(FOLD_CONTEXT, toUpper, layout(keywordField)).get(driverContext);
+            }
             default -> throw new UnsupportedOperationException();
         };
     }
@@ -234,6 +255,23 @@ private static FieldAttribute keywordField() {
         return new FieldAttribute(Source.EMPTY, "keyword", new EsField("keyword", DataType.KEYWORD, Map.of(), true));
     }
 
+    private static Configuration configuration() {
+        return new Configuration(
+            ZoneOffset.UTC,
+            Locale.ROOT,
+            null,
+            null,
+            null,
+            EsqlPlugin.QUERY_RESULT_TRUNCATION_MAX_SIZE.get(Settings.EMPTY),
+            EsqlPlugin.QUERY_RESULT_TRUNCATION_DEFAULT_SIZE.get(Settings.EMPTY),
+            null,
+            false,
+            Map.of(),
+            0,
+            false
+        );
+    }
+
     private static Layout layout(FieldAttribute... fields) {
         Layout.Builder layout = new Layout.Builder();
         layout.append(Arrays.asList(fields));
@@ -366,10 +404,24 @@ private static void checkExpected(String operation, Page actual) {
                     }
                 }
             }
+            case "to_lower" -> checkBytes(operation, actual, new BytesRef[] { new BytesRef("foo"), new BytesRef("bar") });
+            case "to_upper" -> checkBytes(operation, actual, new BytesRef[] { new BytesRef("FOO"), new BytesRef("BAR") });
             default -> throw new UnsupportedOperationException(operation);
         }
     }
 
+    private static void checkBytes(String operation, Page actual, BytesRef[] expectedVals) {
+        BytesRef scratch = new BytesRef();
+        BytesRefVector v = actual.<BytesRefBlock>getBlock(1).asVector();
+        for (int i = 0; i < BLOCK_LENGTH; i++) {
+            BytesRef expected = expectedVals[i % 2];
+            BytesRef b = v.getBytesRef(i, scratch);
+            if (b.equals(expected) == false) {
+                throw new AssertionError("[" + operation + "] expected [" + expected + "] but was [" + b + "]");
+            }
+        }
+    }
+
     private static Page page(String operation) {
         return switch (operation) {
             case "abs", "add", "date_trunc", "equal_to_const" -> {
@@ -440,7 +492,7 @@ private static Page page(String operation) {
                 }
                 yield new Page(builder.build());
             }
-            case "rlike" -> {
+            case "rlike", "to_lower", "to_upper" -> {
                 var builder = blockFactory.newBytesRefVectorBuilder(BLOCK_LENGTH);
                 BytesRef[] values = new BytesRef[] { new BytesRef("foo"), new BytesRef("bar") };
                 for (int i = 0; i < BLOCK_LENGTH; i++) {

benchmarks/src/main/java/org/elasticsearch/benchmark/indices/resolution/IndexNameExpressionResolverBenchmark.java

@@ -17,6 +17,7 @@
 import org.elasticsearch.cluster.metadata.IndexMetadata;
 import org.elasticsearch.cluster.metadata.IndexNameExpressionResolver;
 import org.elasticsearch.cluster.metadata.Metadata;
+import org.elasticsearch.cluster.project.DefaultProjectResolver;
 import org.elasticsearch.common.settings.Settings;
 import org.elasticsearch.common.util.concurrent.ThreadContext;
 import org.elasticsearch.index.Index;
@@ -84,7 +85,11 @@ public void setUp() {
         }
         int mid = indices.length / 2;
         clusterState = ClusterState.builder(ClusterName.DEFAULT).metadata(mb).build();
-        resolver = new IndexNameExpressionResolver(new ThreadContext(Settings.EMPTY), new SystemIndices(List.of()));
+        resolver = new IndexNameExpressionResolver(
+            new ThreadContext(Settings.EMPTY),
+            new SystemIndices(List.of()),
+            DefaultProjectResolver.INSTANCE
+        );
         indexListRequest = new Request(IndicesOptions.lenientExpandOpenHidden(), indices);
         starRequest = new Request(IndicesOptions.lenientExpandOpenHidden(), "*");
         String[] mixed = indices.clone();

benchmarks/src/main/java/org/elasticsearch/benchmark/routing/allocation/AllocationBenchmark.java

@@ -138,7 +138,7 @@ public void setUp() throws Exception {
         Metadata metadata = mb.build();
         RoutingTable.Builder rb = RoutingTable.builder(TestShardRoutingRoleStrategies.DEFAULT_ROLE_ONLY);
         for (int i = 1; i <= numIndices; i++) {
-            rb.addAsNew(metadata.index("test_" + i));
+            rb.addAsNew(metadata.getProject().index("test_" + i));
         }
         RoutingTable routingTable = rb.build();
         DiscoveryNodes.Builder nb = DiscoveryNodes.builder();