strongduanmu commented on a change in pull request #10956:
URL: https://github.com/apache/shardingsphere/pull/10956#discussion_r657643056



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File path: 
shardingsphere-infra/shardingsphere-infra-common/src/main/java/org/apache/shardingsphere/infra/metadata/schema/builder/loader/dialect/OracleTableMetaDataLoader.java
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@@ -44,7 +44,7 @@
  */
 public final class OracleTableMetaDataLoader implements 
DialectTableMetaDataLoader {
     
-    private static final String TABLE_META_DATA_SQL = "SELECT OWNER AS 
TABLE_SCHEMA, TABLE_NAME, COLUMN_NAME, DATA_TYPE, IDENTITY_COLUMN %s FROM 
ALL_TAB_COLUMNS WHERE OWNER = ?";

Review comment:
       @xueshiji This field is added in Oracle 12.1 version, you can refer to 
the 
[document](https://docs.oracle.com/database/121/REFRN/GUID-F218205C-7D76-4A83-8691-BFD2AD372B63.htm#REFRN20277).
  Therefore, the version judgment logic should be different from the COLLATION 
field.




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