[ 
https://issues.apache.org/jira/browse/PHOENIX-6172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17215058#comment-17215058
 ] 

ASF GitHub Bot commented on PHOENIX-6172:
-----------------------------------------

ChinmaySKulkarni commented on a change in pull request #908:
URL: https://github.com/apache/phoenix/pull/908#discussion_r505903071



##########
File path: phoenix-core/src/it/java/org/apache/phoenix/end2end/UpgradeIT.java
##########
@@ -672,4 +689,61 @@ private SequenceKey 
createViewIndexSequenceWithOldName(ConnectionQueryServices c
         return key;
     }
 
+    @Test
+    public void testUpgradeViewIndexIdDataType() throws Exception {
+        byte[] rowKey = SchemaUtil.getColumnKey(null,
+                SYSTEM_SCHEMA_NAME, SYSTEM_CATALOG_TABLE, VIEW_INDEX_ID,
+                PhoenixDatabaseMetaData.TABLE_FAMILY);
+        byte[] syscatBytes = 
PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME.getBytes();
+        byte[] viewIndexIdTypeCellValueIn414 = 
PInteger.INSTANCE.toBytes(Types.SMALLINT);
+        byte[] viewIndexIdTypeCellValueIn416 = 
PInteger.INSTANCE.toBytes(Types.BIGINT);
+
+        // update the VIEW_INDEX_ID 0:DATAT_TYPE cell value to SMALLINT
+        // (4.14 and prior version is a SMALLINT column)
+        updateViewIndexIdColumnValue(rowKey, syscatBytes, 
viewIndexIdTypeCellValueIn414);

Review comment:
       If something fails after this modification of SYSTEM.CATALOG and for 
some reason the upgrade part doesn't run, the rest of this IT will work with a 
SYSTEM.CATALOG that has some modification in it right? Can we have some 
`finally' block to make sure there are no such changes?

##########
File path: phoenix-core/src/main/java/org/apache/phoenix/util/UpgradeUtil.java
##########
@@ -2252,6 +2255,36 @@ public static void upgradeTable(PhoenixConnection conn, 
String srcTable) throws
         }
     }
 
+    public static boolean 
updateViewIndexIdColumnDataTypeFromShortToLongIfNeeds(

Review comment:
       nit: `IfNeeded`

##########
File path: phoenix-core/src/main/java/org/apache/phoenix/util/UpgradeUtil.java
##########
@@ -2252,6 +2255,36 @@ public static void upgradeTable(PhoenixConnection conn, 
String srcTable) throws
         }
     }
 
+    public static boolean 
updateViewIndexIdColumnDataTypeFromShortToLongIfNeeds(
+            PhoenixConnection metaConnection, HBaseAdmin admin) {

Review comment:
       Maybe we should return true if an update was required, false if not 
required and in case it throw, we can catch and log the exception in the caller?

##########
File path: phoenix-core/src/main/java/org/apache/phoenix/util/UpgradeUtil.java
##########
@@ -2252,6 +2255,36 @@ public static void upgradeTable(PhoenixConnection conn, 
String srcTable) throws
         }
     }
 
+    public static boolean 
updateViewIndexIdColumnDataTypeFromShortToLongIfNeeds(
+            PhoenixConnection metaConnection, HBaseAdmin admin) {
+        try {
+            String tableName = PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME;
+            if (!admin.tableExists(tableName)) {
+                tableName = tableName.replace(
+                        QueryConstants.NAME_SEPARATOR,
+                        QueryConstants.NAMESPACE_SEPARATOR);
+            }
+            try(Table sysTable = 
metaConnection.getQueryServices().getTable(tableName.getBytes())) {
+                byte[] rowKey =
+                        SchemaUtil.getColumnKey(null, SYSTEM_SCHEMA_NAME, 
SYSTEM_CATALOG_TABLE,
+                                VIEW_INDEX_ID, 
PhoenixDatabaseMetaData.TABLE_FAMILY);
+                KeyValue viewIndexIdKV = KeyValueUtil.newKeyValue(rowKey,

Review comment:
       We should avoid this Put (will be a no-op) if the view_index_id is 
already BIGINT right? 




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> Updating VIEW_INDEX_ID column type and ts in Syscat with a 4.16 upgrade 
> script 
> -------------------------------------------------------------------------------
>
>                 Key: PHOENIX-6172
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-6172
>             Project: Phoenix
>          Issue Type: Improvement
>    Affects Versions: 4.15.0
>            Reporter: Xinyi Yan
>            Priority: Major
>             Fix For: 4.16.0
>
>
> Updating VIEW_INDEX_ID column type and ts in Syscat with a 4.16 upgrade 
> script by using HBase put. Making sure the HBase row ts reflects the 4.16 
> version.



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