fix UT and doctest

Signed-off-by: xinyual <xinyual@amazon.com>

Author: xinyual

docs/user/ppl/cmd/parse.rst

@@ -40,7 +40,7 @@ PPL query::
     |-----------------------+------------|
     | amberduke@pyrami.com  | pyrami.com |
     | hattiebond@netagy.com | netagy.com |
-    | null                  |            |
+    | null                  | null       |
     | daleadams@boink.com   | boink.com  |
     +-----------------------+------------+
 

opensearch/src/test/java/org/opensearch/sql/opensearch/executor/OpenSearchExecutionEngineTest.java

@@ -174,7 +174,6 @@ void explain_successfully() {
         new OpenSearchExecutionEngine(client, protector, new PlanSerializer(null));
     Settings settings = mock(Settings.class);
     when(settings.getSettingValue(SQL_CURSOR_KEEP_ALIVE)).thenReturn(TimeValue.timeValueMinutes(1));
-    when(settings.getSettingValue(Settings.Key.SQL_PAGINATION_API_SEARCH_AFTER)).thenReturn(true);
 
     OpenSearchExprValueFactory exprValueFactory = mock(OpenSearchExprValueFactory.class);
     final var name = new OpenSearchRequest.IndexName("test");

opensearch/src/test/java/org/opensearch/sql/opensearch/executor/protector/OpenSearchExecutionProtectorTest.java

@@ -94,8 +94,6 @@ public void setup() {
 
   @Test
   void test_protect_indexScan() {
-    when(settings.getSettingValue(Settings.Key.SQL_PAGINATION_API_SEARCH_AFTER)).thenReturn(true);
-
     String indexName = "test";
     final int maxResultWindow = 10000;
     NamedExpression include = named("age", ref("age", INTEGER));

ppl/src/test/java/org/opensearch/sql/ppl/parser/AstBuilderTest.java

@@ -896,7 +896,7 @@ protected void assertEqual(String query, String expected) {
   }
 
   private Node plan(String query) {
-    AstBuilder astBuilder = new AstBuilder(query);
+    AstBuilder astBuilder = new AstBuilder(query, settings);
     return astBuilder.visit(parser.parse(query));
   }