Add ILIKE operator (#1033)

Author: gramian

engine/src/main/grammar/SQLGrammar.jjt

@@ -531,6 +531,7 @@ TOKEN :
   | < NOT: ("N"|"n")("O"|"o")("T"|"t")  >
   | < IN: ("I"|"i")("N"|"n") >
   | < LIKE: ("L"|"l")("I"|"i")("K"|"k")("E"|"e") >
+  | < ILIKE: ("I"|"i")("L"|"l")("I"|"i")("K"|"k")("E"|"e") >
   | < IS: "is"|"IS"|"Is"|"iS" >
   | < BETWEEN: ("B"|"b")("E"|"e")("T"|"t")("W"|"w")("E"|"e")("E"|"e")("N"|"n")>
   | < CONTAINS: ("C"|"c")("O"|"o")("N"|"n")("T"|"t")("A"|"a")("I"|"i")("N"|"n")("S"|"s") >
@@ -2497,6 +2498,7 @@ BinaryCompareOperator CompareOperator():
   | result = GeOperator()
   | result = LeOperator()
   | result = LikeOperator()
+  | result = ILikeOperator()
   | result = ContainsKeyOperator()
   | result = NearOperator()
   | result = WithinOperator()
@@ -2547,6 +2549,12 @@ LikeOperator LikeOperator():
   <LIKE> {return jjtThis;}
 }
 
+ILikeOperator ILikeOperator():
+{}
+{
+  <ILIKE> {return jjtThis;}
+}
+
 NearOperator NearOperator():
 {}
 {

engine/src/main/java/com/arcadedb/query/sql/parser/ILikeOperator.java

@@ -0,0 +1,63 @@
+/*
+ * Copyright © 2021-present Arcade Data Ltd (info@arcadedata.com)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * SPDX-FileCopyrightText: 2021-present Arcade Data Ltd (info@arcadedata.com)
+ * SPDX-License-Identifier: Apache-2.0
+ */
+/* Generated By:JJTree: Do not edit this line. OLikeOperator.java Version 4.3 */
+/* JavaCCOptions:MULTI=true,NODE_USES_PARSER=false,VISITOR=true,TRACK_TOKENS=true,NODE_PREFIX=O,NODE_EXTENDS=,NODE_FACTORY=,SUPPORT_USERTYPE_VISIBILITY_PUBLIC=true */
+package com.arcadedb.query.sql.parser;
+
+import com.arcadedb.database.DatabaseInternal;
+import com.arcadedb.query.sql.executor.MultiValue;
+import com.arcadedb.query.sql.executor.QueryHelper;
+
+public class ILikeOperator extends SimpleNode implements BinaryCompareOperator {
+  public ILikeOperator(final int id) {
+    super(id);
+  }
+
+  @Override
+  public boolean execute(final DatabaseInternal database, final Object iLeft, final Object iRight) {
+    if (MultiValue.isMultiValue(iLeft) || MultiValue.isMultiValue(iRight))
+      return false;
+
+    if (iLeft == null || iRight == null) {
+      return false;
+    }
+    return QueryHelper.like(iLeft.toString().toLowerCase(), iRight.toString().toLowerCase());
+  }
+
+  @Override
+  public String toString() {
+    return "ILIKE";
+  }
+
+  @Override
+  public ILikeOperator copy() {
+    return this;
+  }
+
+  @Override
+  public boolean equals(final Object obj) {
+    return obj != null && obj.getClass().equals(this.getClass());
+  }
+
+  @Override
+  public int hashCode() {
+    return getClass().hashCode();
+  }
+}
+/* JavaCC - OriginalChecksum=16d302abf0f85b404e57b964606952ca (do not edit this line) */