FlyingZC opened a new issue, #27832: URL: https://github.com/apache/shardingsphere/issues/27832
# 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 SQLRETURN SQLExecDirect(SQLHSTMT StatementHandle, SQLCHAR *StatementText, SQLINTEGER TextLength); ``` ```sql postgres=# CREATE TABLE tpcds.customer_address ( ca_address_sk integer NOT NULL , ca_address_id character(16) NOT NULL , ca_street_number character(10) , ca_street_name character varying(60) , ca_street_type character(15) , ca_suite_number character(10) , ca_city character varying(60) , ca_county character varying(30) , ca_state character(2) , ca_zip character(10) , ca_country character varying(20) , ca_gmt_offset numeric(5,2) , ca_location_type character(20) ) PARTITION BY RANGE (ca_address_sk) ( PARTITION P1 VALUES LESS THAN(5000), PARTITION P2 VALUES LESS THAN(10000), PARTITION P3 VALUES LESS THAN(15000), PARTITION P4 VALUES LESS THAN(20000), PARTITION P5 VALUES LESS THAN(25000), PARTITION P6 VALUES LESS THAN(30000), PARTITION P7 VALUES LESS THAN(40000), PARTITION P8 VALUES LESS THAN(MAXVALUE) ) ENABLE ROW MOVEMENT; ``` ```sql postgres=# CREATE TABLE tpcds.web_returns_p2 ( ca_address_sk integer NOT NULL , ca_address_id character(16) NOT NULL , ca_street_number character(10) , ca_street_name character varying(60) , ca_street_type character(15) , ca_suite_number character(10) , ca_city character varying(60) , ca_county character varying(30) , ca_state character(2) , ca_zip character(10) , ca_country character varying(20) , ca_gmt_offset numeric(5,2) , ca_location_type character(20) ) PARTITION BY RANGE (ca_address_sk) ( PARTITION P1 VALUES LESS THAN(5000), PARTITION P2 VALUES LESS THAN(10000), PARTITION P3 VALUES LESS THAN(15000), PARTITION P4 VALUES LESS THAN(20000), PARTITION P5 VALUES LESS THAN(25000), PARTITION P6 VALUES LESS THAN(30000), PARTITION P7 VALUES LESS THAN(40000), PARTITION P8 VALUES LESS THAN(MAXVALUE) ) ENABLE ROW MOVEMENT; CREATE TABLE postgres=# INSERT INTO tpcds.web_returns_p2 SELECT * FROM tpcds.customer_address; ``` ```sql postgres=# ALTER TABLE tpcds.web_returns_p2 DISABLE ROW MOVEMENT; ``` ```sql postgres=# ALTER TABLE tpcds.web_returns_p2 DROP PARTITION P8; ``` # 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 -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
