FlyingZC opened a new issue, #27100: URL: https://github.com/apache/shardingsphere/issues/27100
# Background Hi community, This issue is for #26878. 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 Oracle SQL parsing in ShardingSphere. More details: https://shardingsphere.apache.org/document/current/en/reference/sharding/parse/ # Task This issue is to support more oracle sql parse, as follows: ```sql CREATE TABLE int_order_hist AS SELECT * FROM order_hist WHERE ROWID IN (SELECT HEAD_ROWID FROM CHAINED_ROWS WHERE TABLE_NAME = 'ORDER_HIST'); ``` ```sql CREATE TABLE interval_sales ( prod_id NUMBER(6) , cust_id NUMBER , time_id DATE , channel_id CHAR(1) , promo_id NUMBER(6) , quantity_sold NUMBER(3) , amount_sold NUMBER(10,2) ) PARTITION BY RANGE (time_id) INTERVAL(NUMTOYMINTERVAL(1, 'MONTH')) ( PARTITION p0 VALUES LESS THAN (TO_DATE('1-1-2008', 'DD-MM-YYYY')), PARTITION p1 VALUES LESS THAN (TO_DATE('1-1-2009', 'DD-MM-YYYY')), PARTITION p2 VALUES LESS THAN (TO_DATE('1-7-2009', 'DD-MM-YYYY')), PARTITION p3 VALUES LESS THAN (TO_DATE('1-1-2010', 'DD-MM-YYYY')) ); ``` ```sql CREATE TABLE list_customers ( customer_id NUMBER(6) , cust_first_name VARCHAR2(20) , cust_last_name VARCHAR2(20) , cust_address CUST_ADDRESS_TYP , nls_territory VARCHAR2(30) , cust_email VARCHAR2(30)) PARTITION BY LIST (nls_territory) ( PARTITION asia VALUES ('CHINA', 'THAILAND'), PARTITION europe VALUES ('GERMANY', 'ITALY', 'SWITZERLAND'), PARTITION west VALUES ('AMERICA'), PARTITION east VALUES ('INDIA'), PARTITION rest VALUES (DEFAULT)); ``` ```sql CREATE TABLE l(a char(16),b char(16), c char(16), d char(240), PRIMARY KEY(a,b,c)) ORGANIZATION INDEX pctthreshold 10 overflow; EXECUTE DBMS_IOT.BUILD_CHAIN_ROWS_TABLE('SYS','L','LC'); ``` ```sql CREATE TABLE oe.categories_tab_sys OF oe.category_typ (category_id PRIMARY KEY) OBJECT ID SYSTEM GENERATED; CREATE TABLE oe.categories_tab_pkbased OF oe.category_typ (category_id PRIMARY KEY) OBJECT ID PRIMARY KEY; ``` # Process 1. First confirm that this is a correct oracle sql syntax, if not please ignore; 2. Compare SQL definitions in Oficial 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 Statment 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 Oracle 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]
