FlyingZC opened a new issue, #27085: URL: https://github.com/apache/shardingsphere/issues/27085
# 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 admin_docindex2( token CHAR(20), doc_id NUMBER, token_frequency NUMBER, token_offsets VARCHAR2(2000), CONSTRAINT pk_admin_docindex2 PRIMARY KEY (token, doc_id)) ORGANIZATION INDEX TABLESPACE admin_tbs PCTTHRESHOLD 20 INCLUDING token_frequency OVERFLOW TABLESPACE admin_tbs2; ``` ```sql CREATE TABLE countries_demo ( country_id CHAR(2) CONSTRAINT country_id_nn_demo NOT NULL , country_name VARCHAR2(40) , currency_name VARCHAR2(25) , currency_symbol VARCHAR2(3) , region VARCHAR2(15) , CONSTRAINT country_c_id_pk_demo PRIMARY KEY (country_id ) ) ORGANIZATION INDEX INCLUDING country_name PCTTHRESHOLD 2 STORAGE ( INITIAL 4K ) OVERFLOW STORAGE ( INITIAL 4K ); ``` ```sql CREATE TABLE customers (PARTITION BY RANGE (cust_year_of_birth) PARTITION p1 VALUES LESS THAN (1945), PARTITION p2 VALUES LESS THAN (1950), PARTITION p3 VALUES LESS THAN (1955), PARTITION p4 VALUES LESS THAN (1960), PARTITION p5 VALUES LESS THAN (1965), PARTITION p6 VALUES LESS THAN (1970); ``` ```sql CREATE TABLE deptXTec3 ORGANIZATION EXTERNAL (TYPE ORACLE_DATAPUMP DEFAULT DIRECTORY def_dir1 ACCESS PARAMETERS (COMPRESSION ENABLED) LOCATION ('dept.dmp')); ``` ```sql CREATE TABLE customer_addresses ( add_id NUMBER, address REF cust_address_typ REFERENCES address_table); ``` # 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]
