>From Preetham Poluparthi <[email protected]>:

Preetham Poluparthi has submitted this change. ( 
https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/20587?usp=email )

Change subject: [ASTERIXDB-3632]: Fix missing array indexes in current index 
detection
......................................................................

[ASTERIXDB-3632]: Fix missing array indexes in current index detection

- user model changes: no
- storage format changes: no
- interface changes: no

Ext-ref: MB-69429

Details:
Previously, in the index advisor, array indexes were not being added to the 
list of current indexes even when they already existed, causing them to always 
appear under recommended_indexes. This change updates the detection logic so 
existing array indexes are correctly recognized and excluded from 
recommendations.

Change-Id: I785d6394ef5d328d1edf36fb07e28cd9e143b3b9
Reviewed-on: https://asterix-gerrit.ics.uci.edu/c/asterixdb/+/20587
Reviewed-by: Preetham Poluparthi <[email protected]>
Reviewed-by: Ali Alsuliman <[email protected]>
Tested-by: Preetham Poluparthi <[email protected]>
---
M 
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/AdviseIndexRule.java
M 
asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/FakeIndexProvider.java
A 
asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/cbo-join/index-advisor/array-simple-advise/array-simple-advise.10.ddl.sqlpp
A 
asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/cbo-join/index-advisor/array-simple-advise/array-simple-advise.11.query.sqlpp
A 
asterixdb/asterix-app/src/test/resources/runtimets/results/cbo-join/index-advisor/array-simple-advise/array-simple-advise.11.adm
M 
asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/entities/Index.java
6 files changed, 71 insertions(+), 12 deletions(-)

Approvals:
  Preetham Poluparthi: Looks good to me, but someone else must approve; Verified
  Anon. E. Moose #1000171:
  Ali Alsuliman: Looks good to me, approved




diff --git 
a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/AdviseIndexRule.java
 
b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/AdviseIndexRule.java
index 967d25d..83c0b25 100644
--- 
a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/AdviseIndexRule.java
+++ 
b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/AdviseIndexRule.java
@@ -142,14 +142,13 @@
                         && actualIndex.getIndexDetails() instanceof 
Index.ValueIndexDetails valueIndexDetails) {
                     
indexAdvisor.addPresentAdviseString(getCreateIndexClause(actualIndex.getIndexName(),
                             valueIndexDetails.getKeyFieldNames(), 
databaseName, dataverse, datasetName));
-                    return;
+                } else {
+                    
indexAdvisor.addRecommendedAdviseString(getCreateIndexClause(
+                            getIndexName(((Index.ValueIndexDetails) 
fakeIndex.getIndexDetails()).getKeyFieldNames()),
+                            ((Index.ValueIndexDetails) 
fakeIndex.getIndexDetails()).getKeyFieldNames(), databaseName,
+                            dataverse, datasetName));
                 }

-                indexAdvisor.addRecommendedAdviseString(getCreateIndexClause(
-                        getIndexName(((Index.ValueIndexDetails) 
fakeIndex.getIndexDetails()).getKeyFieldNames()),
-                        ((Index.ValueIndexDetails) 
fakeIndex.getIndexDetails()).getKeyFieldNames(), databaseName,
-                        dataverse, datasetName));
-
             } else if (fakeIndex.getIndexDetails() instanceof 
Index.ArrayIndexDetails fakeArrayIndexDetails) {
                 Index actualIndex = lookupArrayIndex(databaseName, dataverse, 
datasetName,
                         ((Index.ArrayIndexDetails) 
fakeIndex.getIndexDetails()).getElementList(), actualIndexProvider);
@@ -157,11 +156,12 @@
                         && actualIndex.getIndexDetails() instanceof 
Index.ArrayIndexDetails arrayIndexDetails) {
                     
indexAdvisor.addPresentAdviseString(getCreateArrayIndexClause(actualIndex.getIndexName(),
                             arrayIndexDetails, databaseName, dataverse, 
datasetName));
-                }
+                } else {

-                indexAdvisor.addRecommendedAdviseString(
-                        
getCreateArrayIndexClause(getArrayIndexName(fakeArrayIndexDetails.getElementList()),
-                                fakeArrayIndexDetails, databaseName, 
dataverse, datasetName));
+                    indexAdvisor.addRecommendedAdviseString(
+                            
getCreateArrayIndexClause(getArrayIndexName(fakeArrayIndexDetails.getElementList()),
+                                    fakeArrayIndexDetails, databaseName, 
dataverse, datasetName));
+                }
             }

         }
@@ -224,7 +224,7 @@
                 builder.append(" ");
             }
 
-            if (projectList.isEmpty() || (projectList.size() == 1 && 
projectList.getFirst().isEmpty())) {
+            if (projectList.isEmpty() || (projectList.size() == 1 && 
projectList.getFirst() == null)) {
                 builder.append(": ");
                 builder.append(typeList.getFirst());
             } else {
diff --git 
a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/FakeIndexProvider.java
 
b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/FakeIndexProvider.java
index cda2c02..fc72069 100644
--- 
a/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/FakeIndexProvider.java
+++ 
b/asterixdb/asterix-algebra/src/main/java/org/apache/asterix/optimizer/rules/cbo/indexadvisor/FakeIndexProvider.java
@@ -100,7 +100,7 @@
                     }
                 } else {
                     List<List<String>> projectListWrapper = new ArrayList<>();
-                    projectListWrapper.add(projectList);
+                    projectListWrapper.add(projectList.isEmpty() ? null : 
projectList);
                     List<IAType> typeList = new ArrayList<>();
                     typeList.add(iaType);

diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/cbo-join/index-advisor/array-simple-advise/array-simple-advise.10.ddl.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/cbo-join/index-advisor/array-simple-advise/array-simple-advise.10.ddl.sqlpp
new file mode 100644
index 0000000..ea1f7a9
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/cbo-join/index-advisor/array-simple-advise/array-simple-advise.10.ddl.sqlpp
@@ -0,0 +1,23 @@
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+use test;
+
+CREATE INDEX array_idx_categories ON A(UNNEST categories : string) EXCLUDE 
UNKNOWN KEY;
\ No newline at end of file
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/cbo-join/index-advisor/array-simple-advise/array-simple-advise.11.query.sqlpp
 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/cbo-join/index-advisor/array-simple-advise/array-simple-advise.11.query.sqlpp
new file mode 100644
index 0000000..c363519
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/cbo-join/index-advisor/array-simple-advise/array-simple-advise.11.query.sqlpp
@@ -0,0 +1,27 @@
+
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.
+ */
+
+use test;
+
+
+ADVISE
+SELECT p
+FROM A p
+WHERE "Food" IN p.categories;
diff --git 
a/asterixdb/asterix-app/src/test/resources/runtimets/results/cbo-join/index-advisor/array-simple-advise/array-simple-advise.11.adm
 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/cbo-join/index-advisor/array-simple-advise/array-simple-advise.11.adm
new file mode 100644
index 0000000..5221040
--- /dev/null
+++ 
b/asterixdb/asterix-app/src/test/resources/runtimets/results/cbo-join/index-advisor/array-simple-advise/array-simple-advise.11.adm
@@ -0,0 +1 @@
+[{"#operator":"Advise","advice":{"#operator":"IndexAdvice","adviseinfo":{"current_indexes":[{"index_statement":"CREATE
 INDEX array_idx_categories ON `Default`.`test`.`A`(UNNEST `categories` : 
string) EXCLUDE UNKNOWN KEY;"}],"recommended_indexes":{"indexes":[]}}}}]
\ No newline at end of file
diff --git 
a/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/entities/Index.java
 
b/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/entities/Index.java
index 4709c13..bb564de 100644
--- 
a/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/entities/Index.java
+++ 
b/asterixdb/asterix-metadata/src/main/java/org/apache/asterix/metadata/entities/Index.java
@@ -576,6 +576,14 @@
         public int getSourceIndicator() {
             return sourceIndicator;
         }
+
+        @Override
+        public boolean equals(Object obj) {
+            return obj instanceof ArrayIndexElement && 
Objects.equals(unnestList, ((ArrayIndexElement) obj).unnestList)
+                    && Objects.equals(projectList, ((ArrayIndexElement) 
obj).projectList)
+                    && Objects.equals(typeList, ((ArrayIndexElement) 
obj).typeList)
+                    && sourceIndicator == ((ArrayIndexElement) 
obj).sourceIndicator;
+        }
     }

     public static class SampleIndexDetails extends AbstractIndexDetails {

--
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Gerrit-MessageType: merged
Gerrit-Project: asterixdb
Gerrit-Branch: master
Gerrit-Change-Id: I785d6394ef5d328d1edf36fb07e28cd9e143b3b9
Gerrit-Change-Number: 20587
Gerrit-PatchSet: 6
Gerrit-Owner: Preetham Poluparthi <[email protected]>
Gerrit-Reviewer: Ali Alsuliman <[email protected]>
Gerrit-Reviewer: Anon. E. Moose #1000171
Gerrit-Reviewer: Jenkins <[email protected]>
Gerrit-Reviewer: Preetham Poluparthi <[email protected]>

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