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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/08/02 09:25:10 UTC

[GitHub] [shardingsphere] FlyingZC opened a new issue, #27758: Support parsing openGauss DO sql

FlyingZC opened a new issue, #27758:
URL: https://github.com/apache/shardingsphere/issues/27758

   # Background
   Hi community,
   
   ShardingSphere parser engine helps users parse a SQL to get the AST (Abstract Syntax Tree) and visit this tree to get SQLStatement (Java Object). Currently, we are planning to enhance the support for openGauss SQL parsing in ShardingSphere.
   
   More details:
   https://shardingsphere.apache.org/document/current/en/reference/sharding/parse/
   
   # Task
   This issue is to support more openGauss sql parse, as follows:
   ```sql
    DO $$DECLARE r record;
   BEGIN
       FOR r IN SELECT c.relname table_name,n.nspname table_schema FROM pg_class c,pg_namespace n 
                WHERE c.relnamespace = n.oid AND n.nspname = 'tpcds' AND relkind IN ('r','v')
       LOOP
           EXECUTE 'GRANT ALL ON ' || quote_ident(r.table_schema) || '.' || quote_ident(r.table_name) || ' TO webuser';
       END LOOP;
   END$$;
   
   
   --删除用户webuser。
   
   ```
   
   ```sql
    DROP USER webuser CASCADE;
   ```
   
   ```sql
   CREATE TABLE table_name(column_name timestamp ON UPDATE CURRENT_TIMESTAMP);
   ```
   
   ```sql
    CREATE TABLESPACE DS_TABLESPACE1 RELATIVE LOCATION 'tablespace/tablespace_1';
   --创建表时,指定表空间。
   
   ```
   
   ```sql
    CREATE TABLE tpcds.warehouse_t16
   (
       W_WAREHOUSE_SK            INTEGER               NOT NULL,
       W_WAREHOUSE_ID            CHAR(16)              NOT NULL,
       W_WAREHOUSE_NAME          VARCHAR(20)                   ,
       W_WAREHOUSE_SQ_FT         INTEGER                       ,
       W_STREET_NUMBER           CHAR(10)                      ,
       W_STREET_NAME             VARCHAR(60)                   ,
       W_STREET_TYPE             CHAR(15)                      ,
       W_SUITE_NUMBER            CHAR(10)                      ,
       W_CITY                    VARCHAR(60)                   ,
       W_COUNTY                  VARCHAR(30)                   ,
       W_STATE                   CHAR(2)                       ,
       W_ZIP                     CHAR(10)                      ,
       W_COUNTRY                 VARCHAR(20)                   ,
       W_GMT_OFFSET              DECIMAL(5,2),
       PARTIAL CLUSTER KEY(W_WAREHOUSE_SK, W_WAREHOUSE_ID)
   ) WITH (ORIENTATION = COLUMN);
   
   --定义一个带压缩的列存表。
   
   ```
   
   # Process
   1. First confirm that this is a correct openGauss sql syntax, if not please leave a message under the issue and ignore it;
   2. Compare SQL definitions in Official SQL Doc and ShardingSphere SQL Doc;
   3. If there is any difference in ShardingSphere SQL Doc, please correct them by referring to the Official SQL Doc;
   4. Run mvn install the current_file_module;
   5. Check whether there are any exceptions. If indeed, please fix them. (Especially xxxVisitor.class);
   6. Add new corresponding SQL case in SQL Cases and expected parsed result in Expected Statement XML;
   7. Run SQLParserParameterizedTest to make sure no exceptions.
   
   # Relevant Skills
   1. Master JAVA language
   2. Have a basic understanding of Antlr `g4` file
   3. Be familiar with openGauss SQLs


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[GitHub] [shardingsphere] github-actions[bot] commented on issue #27758: Support parsing openGauss DO sql

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27758:
URL: https://github.com/apache/shardingsphere/issues/27758#issuecomment-1703268179

   There hasn't been any activity on this issue recently, and in order to prioritize active issues, it will be marked as stale.


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Re: [I] Support parsing openGauss DO sql [shardingsphere]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27758:
URL: https://github.com/apache/shardingsphere/issues/27758#issuecomment-1783911736

   There hasn't been any activity on this issue recently, and in order to prioritize active issues, it will be marked as stale.


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Re: [I] Support parsing openGauss DO sql [shardingsphere]

Posted by "FlyingZC (via GitHub)" <gi...@apache.org>.
FlyingZC closed issue #27758: Support parsing openGauss  DO sql
URL: https://github.com/apache/shardingsphere/issues/27758


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