Fixes #1684: Support CREATE MATERIALIZED VIEW with AUTO REFRESH

Support parsing create view statements in Redshift with AUTO REFRESH
option.

src/main/java/net/sf/jsqlparser/parser/ParserKeywordsUtils.java

@@ -182,6 +182,11 @@ public static List<String> getReservedKeywords(int restriction) {
 
                 , { "NEXTVAL", RESTRICTED_JSQLPARSER }
 
+                , { "AUTO", RESTRICTED_JSQLPARSER }
+                , { "REFRESH", RESTRICTED_JSQLPARSER }
+                , { "YES", RESTRICTED_JSQLPARSER }
+                , { "NO", RESTRICTED_JSQLPARSER }
+
                 //@todo: Object Names should not start with Hex-Prefix, we shall not find that Token
                 , { "0x", RESTRICTED_JSQLPARSER }
         };

src/main/java/net/sf/jsqlparser/statement/create/view/AutoRefreshOption.java

@@ -0,0 +1,18 @@
+/*-
+ * #%L
+ * JSQLParser library
+ * %%
+ * Copyright (C) 2004 - 2019 JSQLParser
+ * %%
+ * Dual licensed under GNU LGPL 2.1 or Apache License 2.0
+ * #L%
+ */
+package net.sf.jsqlparser.statement.create.view;
+
+public enum AutoRefreshOption {
+  NONE,
+
+  YES,
+
+  NO
+}

src/main/java/net/sf/jsqlparser/statement/create/view/CreateView.java

@@ -29,6 +29,7 @@ public class CreateView implements Statement {
     private boolean materialized = false;
     private ForceOption force = ForceOption.NONE;
     private TemporaryOption temp = TemporaryOption.NONE;
+    private AutoRefreshOption autoRefresh = AutoRefreshOption.NONE;
     private boolean withReadOnly = false;
 
     @Override
@@ -95,6 +96,14 @@ public void setTemporary(TemporaryOption temp) {
         this.temp = temp;
     }
 
+    public AutoRefreshOption getAutoRefresh() {
+        return autoRefresh;
+    }
+
+    public void setAutoRefresh(AutoRefreshOption autoRefresh) {
+        this.autoRefresh = autoRefresh;
+    }
+
     public boolean isWithReadOnly() {
         return withReadOnly;
     }
@@ -129,6 +138,9 @@ public String toString() {
         }
         sql.append("VIEW ");
         sql.append(view);
+        if (autoRefresh != AutoRefreshOption.NONE) {
+            sql.append(" AUTO REFRESH ").append(autoRefresh.name());
+        }
         if (columnNames != null) {
             sql.append(PlainSelect.getStringList(columnNames, true, true));
         }

src/main/java/net/sf/jsqlparser/util/deparser/CreateViewDeParser.java

@@ -11,6 +11,7 @@
 
 import net.sf.jsqlparser.statement.create.view.CreateView;
 import net.sf.jsqlparser.statement.create.view.TemporaryOption;
+import net.sf.jsqlparser.statement.create.view.AutoRefreshOption;
 import net.sf.jsqlparser.statement.select.PlainSelect;
 import net.sf.jsqlparser.statement.select.Select;
 import net.sf.jsqlparser.statement.select.SelectVisitor;
@@ -60,6 +61,10 @@ public void deParse(CreateView createView) {
             buffer.append("MATERIALIZED ");
         }
         buffer.append("VIEW ").append(createView.getView().getFullyQualifiedName());
+
+        if (createView.getAutoRefresh() != AutoRefreshOption.NONE) {
+            buffer.append(" AUTO REFRESH ").append(createView.getAutoRefresh().name());
+        }
         if (createView.getColumnNames() != null) {
             buffer.append(PlainSelect.getStringList(createView.getColumnNames(), true, true));
         }

src/main/jjtree/net/sf/jsqlparser/parser/JSqlParserCC.jjt

@@ -149,6 +149,7 @@ TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
 |   <K_AT: "AT">
 |   <K_ASC:"ASC">
 |   <K_AUTHORIZATION:"AUTHORIZATION">
+|   <K_AUTO:"AUTO">
 |   <K_BEGIN:"BEGIN">
 |   <K_BETWEEN:"BETWEEN">
 |   <K_BINARY: "BINARY">
@@ -345,6 +346,7 @@ TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
 |   <K_RECYCLEBIN: "RECYCLEBIN">
 |   <K_RECURSIVE:"RECURSIVE">
 |   <K_REFERENCES:"REFERENCES">
+|   <K_REFRESH:"REFRESH">
 |   <K_REGEXP: "REGEXP">
 |   <K_RLIKE: "RLIKE">
 |   <K_REGISTER: "REGISTER">
@@ -439,6 +441,7 @@ TOKEN: /* SQL Keywords. prefixed with K_ to avoid name clashes */
 |   <K_XMLAGG:"XMLAGG">
 |   <K_XMLTEXT:"XMLTEXT">
 |   <K_YAML:"YAML">
+|   <K_YES:"YES">
 |   <K_ZONE:"ZONE">
 }
 
@@ -5406,6 +5409,7 @@ CreateView CreateView():
     Table view = null;
     Select select = null;
     List<String> columnNames = null;
+    Token tk = null;
 }
 {
     <K_CREATE>
@@ -5420,6 +5424,7 @@ CreateView CreateView():
     ]
     [ <K_MATERIALIZED> { createView.setMaterialized(true);} ]
     <K_VIEW> view=Table() { createView.setView(view); }
+    [LOOKAHEAD(3) <K_AUTO> <K_REFRESH> (tk=<K_YES> | tk=<K_NO>) { createView.setAutoRefresh(AutoRefreshOption.valueOf(tk.image)); } ]
     [ columnNames = ColumnsNamesList() { createView.setColumnNames(columnNames); } ]
     <K_AS>
     select=SelectWithWithItems( ) { createView.setSelect(select); }

src/test/java/net/sf/jsqlparser/statement/create/CreateViewTest.java

@@ -10,14 +10,21 @@
 package net.sf.jsqlparser.statement.create;
 
 import java.io.StringReader;
+
 import net.sf.jsqlparser.JSQLParserException;
 import net.sf.jsqlparser.parser.CCJSqlParserManager;
+import net.sf.jsqlparser.parser.CCJSqlParserUtil;
+import net.sf.jsqlparser.parser.ParseException;
 import net.sf.jsqlparser.schema.Table;
+import net.sf.jsqlparser.statement.create.view.AutoRefreshOption;
 import net.sf.jsqlparser.statement.create.view.CreateView;
 import net.sf.jsqlparser.statement.select.PlainSelect;
 import static net.sf.jsqlparser.test.TestUtils.*;
+import static org.assertj.core.api.Assertions.assertThatThrownBy;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
+
+import org.assertj.core.api.ThrowableAssert.ThrowingCallable;
 import org.junit.jupiter.api.Test;
 
 public class CreateViewTest {
@@ -121,4 +128,59 @@ public void testCreateTemporaryViewIssue665() throws JSQLParserException {
     public void testCreateWithReadOnlyViewIssue838() throws JSQLParserException {
         assertSqlCanBeParsedAndDeparsed("CREATE VIEW v14(c1, c2) AS SELECT c1, C2 FROM t1 WITH READ ONLY");
     }
+
+    @Test
+    public void testCreateViewAutoRefreshNone() throws JSQLParserException {
+        String stmt = "CREATE VIEW myview AS SELECT * FROM mytab";
+        CreateView createView = (CreateView) assertSqlCanBeParsedAndDeparsed(stmt);
+        assertEquals(createView.getAutoRefresh(), AutoRefreshOption.NONE);
+    }
+
+    @Test
+    public void testCreateViewAutoRefreshYes() throws JSQLParserException {
+        String stmt = "CREATE VIEW myview AUTO REFRESH YES AS SELECT * FROM mytab";
+        CreateView createView = (CreateView) assertSqlCanBeParsedAndDeparsed(stmt);
+        assertEquals(createView.getAutoRefresh(), AutoRefreshOption.YES);
+    }
+
+    @Test
+    public void testCreateViewAutoRefreshNo() throws JSQLParserException {
+        String stmt = "CREATE VIEW myview AUTO REFRESH NO AS SELECT * FROM mytab";
+        CreateView createView = (CreateView) assertSqlCanBeParsedAndDeparsed(stmt);
+        assertEquals(createView.getAutoRefresh(), AutoRefreshOption.NO);
+    }
+
+    @Test
+    public void testCreateViewAutoFails() throws JSQLParserException {
+        String stmt = "CREATE VIEW myview AUTO AS SELECT * FROM mytab";
+
+        ThrowingCallable throwingCallable = () -> CCJSqlParserUtil.parse(stmt);
+
+        assertThatThrownBy(throwingCallable).isInstanceOf(JSQLParserException.class)
+        .hasRootCauseInstanceOf(ParseException.class).rootCause()
+        .hasMessageStartingWith("Encountered unexpected token");
+    }
+
+    @Test
+    public void testCreateViewRefreshFails() throws JSQLParserException {
+        String stmt = "CREATE VIEW myview REFRESH AS SELECT * FROM mytab";
+
+        ThrowingCallable throwingCallable = () -> CCJSqlParserUtil.parse(stmt);
+
+        assertThatThrownBy(throwingCallable).isInstanceOf(JSQLParserException.class)
+        .hasRootCauseInstanceOf(ParseException.class).rootCause()
+        .hasMessageStartingWith("Encountered unexpected token");
+    }
+
+    @Test
+    public void testCreateViewAutoRefreshFails() throws JSQLParserException {
+        String stmt = "CREATE VIEW myview AUTO REFRESH AS SELECT * FROM mytab";
+
+        ThrowingCallable throwingCallable = () -> CCJSqlParserUtil.parse(stmt);
+
+        assertThatThrownBy(throwingCallable).isInstanceOf(JSQLParserException.class)
+        .hasRootCauseInstanceOf(ParseException.class).rootCause()
+        .hasMessageStartingWith("Encountered unexpected token");
+    }
+
 }