Rename EMBED_TEXT function to TEXT_EMBEDDING and update all references

Author: afoucret

docs/reference/query-languages/esql/images/functions/embed_text.svg

@@ -1246,9 +1246,9 @@ public enum Cap {
         AGGREGATE_METRIC_DOUBLE_AVG(AGGREGATE_METRIC_DOUBLE_FEATURE_FLAG),
 
         /**
-         * Support for the {@code EMBED_TEXT} function for generating dense vector embeddings.
+         * Support for the {@code TEXT_EMBEDDING} function for generating dense vector embeddings.
          */
-        EMBED_TEXT_FUNCTION(Build.current().isSnapshot()),
+        TEXT_EMBEDDING_FUNCTION(Build.current().isSnapshot()),
 
         /**
          * Forbid usage of brackets in unquoted index and enrich policy names

docs/reference/query-languages/esql/images/functions/text_embedding.svg

@@ -13,7 +13,7 @@
 import org.elasticsearch.xpack.esql.expression.function.UnsupportedAttribute;
 import org.elasticsearch.xpack.esql.expression.function.aggregate.AggregateWritables;
 import org.elasticsearch.xpack.esql.expression.function.fulltext.FullTextWritables;
-import org.elasticsearch.xpack.esql.expression.function.inference.EmbedText;
+import org.elasticsearch.xpack.esql.expression.function.inference.TextEmbedding;
 import org.elasticsearch.xpack.esql.expression.function.scalar.ScalarFunctionWritables;
 import org.elasticsearch.xpack.esql.expression.function.scalar.convert.FromBase64;
 import org.elasticsearch.xpack.esql.expression.function.scalar.convert.ToAggregateMetricDouble;
@@ -268,8 +268,8 @@ private static List<NamedWriteableRegistry.Entry> vector() {
     }
 
     private static List<NamedWriteableRegistry.Entry> inference() {
-        if (EsqlCapabilities.Cap.EMBED_TEXT_FUNCTION.isEnabled()) {
-            return List.of(EmbedText.ENTRY);
+        if (EsqlCapabilities.Cap.TEXT_EMBEDDING_FUNCTION.isEnabled()) {
+            return List.of(TextEmbedding.ENTRY);
         }
         return List.of();
     }

docs/reference/query-languages/esql/kibana/definition/functions/embed_text.json renamed to docs/reference/query-languages/esql/kibana/definition/functions/text_embedding.json

@@ -52,7 +52,7 @@
 import org.elasticsearch.xpack.esql.expression.function.fulltext.Term;
 import org.elasticsearch.xpack.esql.expression.function.grouping.Bucket;
 import org.elasticsearch.xpack.esql.expression.function.grouping.Categorize;
-import org.elasticsearch.xpack.esql.expression.function.inference.EmbedText;
+import org.elasticsearch.xpack.esql.expression.function.inference.TextEmbedding;
 import org.elasticsearch.xpack.esql.expression.function.scalar.conditional.Case;
 import org.elasticsearch.xpack.esql.expression.function.scalar.conditional.Greatest;
 import org.elasticsearch.xpack.esql.expression.function.scalar.conditional.Least;
@@ -480,7 +480,7 @@ private static FunctionDefinition[][] snapshotFunctions() {
                 def(FirstOverTime.class, uni(FirstOverTime::new), "first_over_time"),
                 def(Term.class, bi(Term::new), "term"),
                 def(Knn.class, Knn::new, "knn"),
-                def(EmbedText.class, EmbedText::new, "embed_text"),
+                def(TextEmbedding.class, TextEmbedding::new, "text_embedding"),
                 def(StGeohash.class, StGeohash::new, "st_geohash"),
                 def(StGeohashToLong.class, StGeohashToLong::new, "st_geohash_to_long"),
                 def(StGeohashToString.class, StGeohashToString::new, "st_geohash_to_string"),

docs/reference/query-languages/esql/kibana/docs/functions/embed_text.md renamed to docs/reference/query-languages/esql/kibana/docs/functions/text_embedding.md

@@ -26,19 +26,21 @@
 import java.util.List;
 import java.util.Objects;
 
-import static org.elasticsearch.xpack.esql.core.expression.TypeResolutions.*;
 import static org.elasticsearch.xpack.esql.core.expression.TypeResolutions.ParamOrdinal.FIRST;
 import static org.elasticsearch.xpack.esql.core.expression.TypeResolutions.ParamOrdinal.SECOND;
+import static org.elasticsearch.xpack.esql.core.expression.TypeResolutions.isFoldable;
+import static org.elasticsearch.xpack.esql.core.expression.TypeResolutions.isNotNull;
+import static org.elasticsearch.xpack.esql.core.expression.TypeResolutions.isString;
 
 /**
- * EMBED_TEXT function that generates dense vector embeddings for text using a specified inference deployment.
+ * TEXT_EMBEDDING function that generates dense vector embeddings for text using a specified inference deployment.
  */
-public class EmbedText extends InferenceFunction<EmbedText> {
+public class TextEmbedding extends InferenceFunction<TextEmbedding> {
 
     public static final NamedWriteableRegistry.Entry ENTRY = new NamedWriteableRegistry.Entry(
         Expression.class,
-        "EmbedText",
-        EmbedText::new
+        "TextEmbedding",
+        TextEmbedding::new
     );
 
     private final Expression inferenceId;
@@ -50,7 +52,7 @@ public class EmbedText extends InferenceFunction<EmbedText> {
         appliesTo = { @FunctionAppliesTo(lifeCycle = FunctionAppliesToLifecycle.DEVELOPMENT) },
         preview = true
     )
-    public EmbedText(
+    public TextEmbedding(
         Source source,
         @Param(name = "text", type = { "keyword", "text" }, description = "Text to embed") Expression inputText,
         @Param(
@@ -64,7 +66,7 @@ public EmbedText(
         this.inputText = inputText;
     }
 
-    private EmbedText(StreamInput in) throws IOException {
+    private TextEmbedding(StreamInput in) throws IOException {
         this(Source.readFrom((PlanStreamInput) in), in.readNamedWriteable(Expression.class), in.readNamedWriteable(Expression.class));
     }
 
@@ -129,31 +131,31 @@ public TaskType taskType() {
     }
 
     @Override
-    public EmbedText withInferenceResolutionError(String inferenceId, String error) {
-        return new EmbedText(source(), inputText, new UnresolvedAttribute(inferenceId().source(), inferenceId, error));
+    public TextEmbedding withInferenceResolutionError(String inferenceId, String error) {
+        return new TextEmbedding(source(), inputText, new UnresolvedAttribute(inferenceId().source(), inferenceId, error));
     }
 
     @Override
     public Expression replaceChildren(List<Expression> newChildren) {
-        return new EmbedText(source(), newChildren.get(0), newChildren.get(1));
+        return new TextEmbedding(source(), newChildren.get(0), newChildren.get(1));
     }
 
     @Override
     protected NodeInfo<? extends Expression> info() {
-        return NodeInfo.create(this, EmbedText::new, inputText, inferenceId);
+        return NodeInfo.create(this, TextEmbedding::new, inputText, inferenceId);
     }
 
     @Override
     public String toString() {
-        return "EMBED_TEXT(" + inputText + ", " + inferenceId + ")";
+        return "TEXT_EMBEDDING(" + inputText + ", " + inferenceId + ")";
     }
 
     @Override
     public boolean equals(Object o) {
         if (o == null || getClass() != o.getClass()) return false;
         if (super.equals(o) == false) return false;
-        EmbedText embedText = (EmbedText) o;
-        return Objects.equals(inferenceId, embedText.inferenceId) && Objects.equals(inputText, embedText.inputText);
+        TextEmbedding textEmbedding = (TextEmbedding) o;
+        return Objects.equals(inferenceId, textEmbedding.inferenceId) && Objects.equals(inputText, textEmbedding.inputText);
     }
 
     @Override

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/action/EsqlCapabilities.java

@@ -51,7 +51,7 @@ public InferenceResolver(EsqlFunctionRegistry functionRegistry, Client client) {
      * extracting their deployment IDs for subsequent validation. Currently, supports:
      * <ul>
      *   <li>{@link InferencePlan} objects (Completion, etc.)</li>
-     *   <li>{@link InferenceFunction} objects (EmbedText, etc.)</li>
+     *   <li>{@link InferenceFunction} objects (TextEmbedding, etc.)</li>
      * </ul>
      *
      * @param plan The logical plan to scan for inference operations
@@ -113,9 +113,9 @@ private void resolveInferenceIds(Set<String> inferenceIds, ActionListener<Infere
      * Collects inference IDs from inference function calls within the logical plan.
      * <p>
      * This method scans the logical plan for {@link UnresolvedFunction} instances that represent
-     * inference functions (e.g., EMBED_TEXT). For each inference function found:
+     * inference functions (e.g., TEXT_EMBEDDING). For each inference function found:
      * <ol>
-     *   <li>Resolves the function definition through the function registry and checks if the function implements {@link InferenceFunction}</li>
+     *   <li>Resolves the function definition through the registry and checks if the function implements {@link InferenceFunction}</li>
      *   <li>Extracts the inference deployment ID from the function arguments</li>
      * </ol>
      * <p>