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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/08/02 09:25:55 UTC

[GitHub] [shardingsphere] FlyingZC opened a new issue, #27766: Support parsing openGauss gs_guc reload sql

FlyingZC opened a new issue, #27766:
URL: https://github.com/apache/shardingsphere/issues/27766

   # 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
   gs_guc reload -Z datanode -N @NODE_NAME@ -D @DN_PATH@ -c "synchronous_standby_names='ANY 1(dn_instanceId1, dn_instanceId2)'";
   ```
   
   ```sql
   gs_guc reload -Z datanode -N @NODE_NAME@ -D @DN_PATH@ -c "synchronous_standby_names='ANY 1(AZ1, AZ2)'";
   ```
   
   ```sql
   SELECT sessionid, start_time, event, count
       FROM (
   SELECT sessionid, start_time, event, COUNT(*)
       FROM dbe_perf.local_active_session
   WHERE sample_time > now() - 5 / (24 * 60)
       GROUP BY sessionid, start_time, event) as t ORDER BY SUM(t.count) OVER \(PARTITION BY t. sessionid, start_time)DESC, t.event;
   ```
   
   ```sql
    SELECT 'a fat cat sat on a mat and ate a fat rat'::tsvector @@ 'cat & rat'::tsquery AS RESULT;
   ```
   
   ```sql
    SELECT 'fat & cow'::tsquery @@ 'a fat cat sat on a mat and ate a fat rat'::tsvector AS RESULT;
   ```
   
   # 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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Re: [I] Support parsing openGauss gs_guc reload sql [shardingsphere]

Posted by "FlyingZC (via GitHub)" <gi...@apache.org>.
FlyingZC closed issue #27766: Support parsing openGauss gs_guc reload sql
URL: https://github.com/apache/shardingsphere/issues/27766


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Re: [I] Support parsing openGauss gs_guc reload sql [shardingsphere]

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27766:
URL: https://github.com/apache/shardingsphere/issues/27766#issuecomment-1783911689

   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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[GitHub] [shardingsphere] github-actions[bot] commented on issue #27766: Support parsing openGauss gs_guc reload sql

Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27766:
URL: https://github.com/apache/shardingsphere/issues/27766#issuecomment-1703267948

   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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