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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/07/13 08:14:02 UTC
[GitHub] [shardingsphere] FlyingZC opened a new issue, #27143: Support parsing Oracle EXPLAIN PLAN sql
FlyingZC opened a new issue, #27143:
URL: https://github.com/apache/shardingsphere/issues/27143
# 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
EXPLAIN PLAN
SET statement_id = 'ex_plan2' FOR
SELECT last_name FROM employees
WHERE last_name LIKE 'Pe%';
SELECT PLAN_TABLE_OUTPUT
FROM TABLE(DBMS_XPLAN.DISPLAY(NULL, 'ex_plan2','BASIC'));
```
```sql
EXPLAIN PLAN FOR
```
```sql
EXPLAIN PLAN FOR
SELECT *
FROM sh.customers
WHERE cust_city='Los Angeles'
AND cust_state_province='CA';
```
```sql
EXPLAIN PLAN FOR
SELECT * FROM sales
WHERE time_id BETWEEN :h AND '01-OCT-2000';
```
```sql
EXPLAIN PLAN FOR
SELECT po.reference, li.*
FROM po_clob p,
XMLTable('/PurchaseOrder' PASSING p.OBJECT_VALUE
COLUMNS reference VARCHAR2(30) PATH 'Reference',
lineitem XMLType PATH 'LineItems/LineItem') po,
XMLTable('/LineItem' PASSING po.lineitem
COLUMNS itemno BINARY_DOUBLE PATH '@ItemNumber',
description VARCHAR2(256) PATH 'Description',
partno VARCHAR2(14) PATH 'Part/@Id',
quantity BINARY_DOUBLE PATH 'Part/@Quantity',
unitprice BINARY_DOUBLE PATH 'Part/@UnitPrice') li
WHERE po.reference = 'SBELL-20021009123335280PDT';
```
# 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
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Re: [I] Support parsing Oracle EXPLAIN PLAN sql [shardingsphere]
Posted by "strongduanmu (via GitHub)" <gi...@apache.org>.
strongduanmu commented on issue #27143:
URL: https://github.com/apache/shardingsphere/issues/27143#issuecomment-1955389709
@ilyasahsan123 Assigned, please go ahead.
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[GitHub] [shardingsphere] github-actions[bot] commented on issue #27143: Support parsing Oracle EXPLAIN PLAN sql
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27143:
URL: https://github.com/apache/shardingsphere/issues/27143#issuecomment-1676080443
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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Re: [I] Support parsing Oracle EXPLAIN PLAN sql [shardingsphere]
Posted by "strongduanmu (via GitHub)" <gi...@apache.org>.
strongduanmu commented on issue #27143:
URL: https://github.com/apache/shardingsphere/issues/27143#issuecomment-1958418113
@ilyasahsan123 Thank you for your test work. I will close this issue now.
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Re: [I] Support parsing Oracle EXPLAIN PLAN sql [shardingsphere]
Posted by "strongduanmu (via GitHub)" <gi...@apache.org>.
strongduanmu closed issue #27143: Support parsing Oracle EXPLAIN PLAN sql
URL: https://github.com/apache/shardingsphere/issues/27143
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Re: [I] Support parsing Oracle EXPLAIN PLAN sql [shardingsphere]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27143:
URL: https://github.com/apache/shardingsphere/issues/27143#issuecomment-1784212729
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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Re: [I] Support parsing Oracle EXPLAIN PLAN sql [shardingsphere]
Posted by "ilyasahsan123 (via GitHub)" <gi...@apache.org>.
ilyasahsan123 commented on issue #27143:
URL: https://github.com/apache/shardingsphere/issues/27143#issuecomment-1956487113
hi @strongduanmu, it turns out that the issue has been resolved with a previous pull request. you might be consider closing this issue.
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Re: [I] Support parsing Oracle EXPLAIN PLAN sql [shardingsphere]
Posted by "ilyasahsan123 (via GitHub)" <gi...@apache.org>.
ilyasahsan123 commented on issue #27143:
URL: https://github.com/apache/shardingsphere/issues/27143#issuecomment-1954035886
hi @strongduanmu , could you please assign this to me?
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