apache/shardingsphere
Ver no GitHubSupport parsing Oracle CLUSTER_SET ( sql
Open
#27.018 aberto em 13 de jul. de 2023
db: Oraclegood first issuein: SQL parsetype: enhancement
Métricas do repositório
- Stars
- (20.714 stars)
- Métricas de merge de PR
- (Mesclagem média 3d 14h) (194 fundiu PRs em 30d)
Description
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:
CLUSTER_SET ( [ schema . ] model [ , topN [ , cutoff ] ] mining_attribute_clause )
CHECK [ REPAIR | NOREPAIR ]
CATALOG START WITH '+disk1'; # all files from recovery area on ASM disk
CATALOG START WITH '/arch_dest2';
CONVERT TABLESPACE sales_1,sales_2
TO PLATFORM 'Microsoft Windows IA (32-bit)'
FORMAT '/tmp/%U';
CREATE BIGFILE TABLESPACE bigtbs_01
DATAFILE 'bigtbs_f1.dbf'
SIZE 20M AUTOEXTEND ON;
Process
- First confirm that this is a correct oracle sql syntax, if not please ignore;
- Compare SQL definitions in Oficial SQL Doc and ShardingSphere SQL Doc;
- If there is any difference in ShardingSphere SQL Doc, please correct them by referring to the Official SQL Doc;
- Run mvn install the current_file_module;
- Check whether there are any exceptions. If indeed, please fix them. (Especially xxxVisitor.class);
- Add new corresponding SQL case in SQL Cases and expected parsed result in Expected Statment XML;
- Run SQLParserParameterizedTest to make sure no exceptions.
Relevant Skills
- Master JAVA language
- Have a basic understanding of Antlr
g4file - Be familiar with Oracle SQLs