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From ankitsinghal <...@git.apache.org>
Subject [GitHub] phoenix pull request: PHOENIX-1311 HBase namespaces surfaced in ph...
Date Wed, 06 Apr 2016 11:59:19 GMT
Github user ankitsinghal commented on a diff in the pull request:

    https://github.com/apache/phoenix/pull/153#discussion_r58692384
  
    --- Diff: phoenix-core/src/main/java/org/apache/phoenix/util/UpgradeUtil.java ---
    @@ -1279,4 +1304,129 @@ public static boolean truncateStats(HTableInterface metaTable,
HTableInterface s
             }
             return false;
         }
    +
    +    public static void mapTableToNamespace(HBaseAdmin admin, HTableInterface metatable,
String srcTableName,
    +            String destTableName, ReadOnlyProps props, Long ts, String phoenixTableName,
PTableType pTableType)
    +                    throws SnapshotCreationException, IllegalArgumentException, IOException,
InterruptedException,
    +                    SQLException {
    +        srcTableName = SchemaUtil.normalizeIdentifier(srcTableName);
    +        if (!SchemaUtil.isNamespaceMappingEnabled(
    +                SchemaUtil.isSystemTable(srcTableName.getBytes()) ? PTableType.SYSTEM
: null,
    +                props)) { throw new IllegalArgumentException(SchemaUtil.isSystemTable(srcTableName.getBytes())
    +                        ? "For system table " + QueryServices.IS_SYSTEM_TABLE_MAPPED_TO_NAMESPACE
    +                                + " also needs to be enabled along with " + QueryServices.IS_NAMESPACE_MAPPING_ENABLED
    +                        : QueryServices.IS_NAMESPACE_MAPPING_ENABLED + " is not enabled");
}
    +
    +        if (PTableType.TABLE.equals(pTableType) || PTableType.INDEX.equals(pTableType))
{
    +            admin.snapshot(srcTableName, srcTableName);
    +            admin.cloneSnapshot(srcTableName.getBytes(), destTableName.getBytes());
    +            admin.disableTable(srcTableName);
    --- End diff --
    
    Deleting srcTable will not delete the snapshot. 
    And, Yes for restore only ,I thought we should not delete snapshot


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