Fix order of args

Author: svilen-mihaylov-elastic

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/expression/function/fulltext/MatchOperator.java

@@ -78,7 +78,8 @@ protected NodeInfo<? extends Expression> info() {
 
     @Override
     public Expression replaceChildren(List<Expression> newChildren) {
-        return new MatchOperator(source(), newChildren.get(0), newChildren.get(1), queryBuilder());
+        // Query first, then field.
+        return new MatchOperator(source(), newChildren.get(1), newChildren.get(0), queryBuilder());
     }
 
     @Override

x-pack/plugin/esql/src/test/java/org/elasticsearch/xpack/esql/analysis/AnalyzerTests.java

@@ -2862,7 +2862,7 @@ public void testFunctionNamedParamsAsFunctionArgument1() {
     public void testFunctionNamedParamsAsFunctionArgument2() {
         LogicalPlan plan = analyze("""
             from test
-            | WHERE MULTI_MATCH(first_name, last_name, "Anna Smith", {"minimum_should_match": 3.0})
+            | WHERE MATCH(first_name, last_name, "Anna Smith", {"minimum_should_match": 3.0})
             """);
         Limit limit = as(plan, Limit.class);
         Filter filter = as(limit.child(), Filter.class);