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Posted to notifications@shardingsphere.apache.org by "FlyingZC (via GitHub)" <gi...@apache.org> on 2023/07/13 08:10:27 UTC
[GitHub] [shardingsphere] FlyingZC opened a new issue, #27107: Support parsing Oracle CREATE TABLE sql
FlyingZC opened a new issue, #27107:
URL: https://github.com/apache/shardingsphere/issues/27107
# 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 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)
)
STORAGE (INITIAL 100K NEXT 50K) LOGGING
PARTITION BY RANGE (time_id)
( PARTITION sales_q1_2006 VALUES LESS THAN (TO_DATE('01-APR-2006','dd-MON-yyyy'))
TABLESPACE tsa STORAGE (INITIAL 20K NEXT 10K)
, PARTITION sales_q2_2006 VALUES LESS THAN (TO_DATE('01-JUL-2006','dd-MON-yyyy'))
TABLESPACE tsb
, PARTITION sales_q3_2006 VALUES LESS THAN (TO_DATE('01-OCT-2006','dd-MON-yyyy'))
TABLESPACE tsc
, PARTITION sales_q4_2006 VALUES LESS THAN (TO_DATE('01-JAN-2007','dd-MON-yyyy'))
TABLESPACE tsd
)
ENABLE ROW MOVEMENT;
```
```sql
CREATE TABLE sales_temp AS SELECT * FROM sales WHERE 1=0;
INSERT INTO sales_temp
SELECT * FROM sales PARTITION (sales_99jan), product
WHERE sales.sales_product_id = product.product_id
AND product_category <> 'XYZ Software';
<create appropriate indexes and constraints on sales_temp>
ALTER TABLE sales EXCHANGE PARTITION sales_99jan WITH TABLE sales_temp;
```
```sql
CREATE TABLE sales_range_hash(
s_productid NUMBER,
s_saledate DATE,
s_custid NUMBER,
s_totalprice NUMBER)
PARTITION BY RANGE (s_saledate)
SUBPARTITION BY HASH (s_productid) SUBPARTITIONS 8
(PARTITION sal99q1 VALUES LESS THAN
(TO_DATE('01-APR-1999', 'DD-MON-YYYY')),
PARTITION sal99q2 VALUES LESS THAN
(TO_DATE('01-JUL-1999', 'DD-MON-YYYY')),
PARTITION sal99q3 VALUES LESS THAN
(TO_DATE('01-OCT-1999', 'DD-MON-YYYY')),
PARTITION sal99q4 VALUES LESS THAN
(TO_DATE('01-JAN-2000', 'DD-MON-YYYY')));
SELECT * FROM sales_range_hash
WHERE s_saledate BETWEEN (TO_DATE('01-JUL-1999', 'DD-MON-YYYY'))
AND (TO_DATE('01-OCT-1999', 'DD-MON-YYYY')) AND s_productid = 1200;
```
```sql
CREATE TABLE sales_by_region (item# INTEGER, qty INTEGER,
store_name VARCHAR(30), state_code VARCHAR(2),
sale_date DATE)
STORAGE(INITIAL 10K NEXT 20K) TABLESPACE tbs5
PARTITION BY LIST (state_code)
(
PARTITION region_east
VALUES ('MA','NY','CT','NH','ME','MD','VA','PA','NJ')
STORAGE (INITIAL 8M)
TABLESPACE tbs8,
PARTITION region_west
VALUES ('CA','AZ','NM','OR','WA','UT','NV','CO')
NOLOGGING,
PARTITION region_south
VALUES ('TX','KY','TN','LA','MS','AR','AL','GA'),
PARTITION region_central
VALUES ('OH','ND','SD','MO','IL','MI','IA'),
PARTITION region_null
VALUES (NULL),
PARTITION region_unknown
VALUES (DEFAULT)
);
```
```sql
CREATE TABLE t1 ( a CLOB ENCRYPT IDENTIFIED BY foo)
LOB(a) STORE AS SECUREFILE (
CACHE
);
```
# 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 CREATE TABLE sql [shardingsphere]
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27107:
URL: https://github.com/apache/shardingsphere/issues/27107#issuecomment-1784212993
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 CREATE TABLE sql [shardingsphere]
Posted by "terrymanu (via GitHub)" <gi...@apache.org>.
terrymanu closed issue #27107: Support parsing Oracle CREATE TABLE sql
URL: https://github.com/apache/shardingsphere/issues/27107
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[GitHub] [shardingsphere] github-actions[bot] commented on issue #27107: Support parsing Oracle CREATE TABLE sql
Posted by "github-actions[bot] (via GitHub)" <gi...@apache.org>.
github-actions[bot] commented on issue #27107:
URL: https://github.com/apache/shardingsphere/issues/27107#issuecomment-1676080651
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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