feat: add support index OPTIONS clause

Author: nielm

src/main/java/com/google/cloud/solutions/spannerddl/parser/ASTcreate_index_statement.java

@@ -66,7 +66,8 @@ public String toStringOptionalExistClause(boolean includeExists) {
             getChildByType(children, ASTcolumns.class),
             getOptionalChildByType(children, ASTstored_column_list.class),
             (interleave != null ? "," : null),
-            interleave);
+            interleave,
+            getOptions());
   }
 
   /**
@@ -91,7 +92,12 @@ public String getDefinitionWithoutStoring() {
             getChildByType(children, ASTtable.class),
             getChildByType(children, ASTcolumns.class),
             (interleave != null ? "," : null),
-            interleave);
+            interleave,
+            getOptions());
+  }
+
+  public ASToptions_clause getOptions() {
+    return getOptionalChildByType(children, ASToptions_clause.class);
   }
 
   private void validateChildren() {
@@ -105,7 +111,8 @@ private void validateChildren() {
             ASTif_not_exists.class,
             ASTname.class,
             ASTtable.class,
-            ASTindex_interleave_clause.class));
+            ASTindex_interleave_clause.class,
+            ASToptions_clause.class));
   }
 
   public List<String> getStoredColumnNames() {

src/test/resources/ddlParserUnsupported.txt

@@ -261,8 +261,4 @@ CREATE TABLE test_table (
 
 CREATE INDEX IF NOT EXISTS usage ON usage_table ( mycol ASC ) WHERE  mycol IS NOT NULL
 
-== Test 34 create index options clause
-
-CREATE INDEX IF NOT EXISTS usage ON usage_table ( mycol ASC ) OPTIONS ( key = 'value' )
-
 ==

src/test/resources/ddlParserValidation.txt

@@ -203,4 +203,8 @@ CREATE TABLE test1 (
   value INT64
 ) PRIMARY KEY (keycol ASC), INTERLEAVE IN other_table ON DELETE NO ACTION
 
+== Test 21 create index with OPTIONS
+
+CREATE INDEX myIndex ON mytable ( key ASC, index ASC ) STORING ( table ) , INTERLEAVE IN parent_table OPTIONS (some_option='enabled')
+
 ==