Commit Graph

16 Commits

Author SHA1 Message Date
10134ea8c6 [fix](planner) fix RewriteInPredicateRule may be useless (#20668)
Issue Number: close #20669

RewriteInPredicateRule may cast InPredicate expr's two child to the same type, for example: where cast(age as char) in ('11'), the type of age is int, RewriteInPredicateRule will cast expr's two child type to int. As in the example above, child 0 will be such struct: 
```
child 0: type: int
    |---  child: type : char
            |-- child: type : int
```

Due to the RewriteInPredicateRule cast the type of the expr to int, it will reanalyze stmt, but it will reset stmt first before reanalyze the stmt, and reset opt will change child 0 to such struct:
```
child: type : char
    |-- child: type : int
```
It cause two child's type will be cast to varchar in func castAllToCompatibleType, the logic of RewriteInPredicateRule will be useless.

In 1.1-lts and 1.2-lts, such case  " where cast(age as char) in ('11')"  can't work well,  because func castAllToCompatibleType will cast int to char but int can't cast to char(master can work well because func castAllToCompatibleType will cast int to varchar in such case).
```
MySQL [test]> select user_id from test_cast where cast(age as char) in ('45');
ERROR 1105 (HY000): errCode = 2, detailMessage = type not match, originType=INT, targeType=CHAR(*)
```
2023-06-12 14:39:01 +08:00
e553615a27 [opt](Nereids) perfer use datev2 / datetimev2 in date related functions (#20224)
1. update all date related functions' signatures order. 
1.1. if return value need to be compute with time info, args with datetimev2 at the top of the list, followed by datev2, datetime and date
1.2. if return value need to be compute with only date info, args with datev2 at the top of list, followed by datetimev2, date and datetime
2. Priority for use datev2, if we must cast date to datev2 or datetime/datetimev2
2023-06-06 11:42:29 +08:00
55ccddb62c [Conf](decimalv3) enable decimalv3 by default 2023-05-29 15:38:31 +08:00
Pxl
43aa062fb1 [Chore](hash-join) remove useless conditions and add some case (#20050) 2023-05-26 14:45:24 +08:00
1d05feea1b [Feature](Nereids) add executable function to support fold constant for functions (#18209)
1. Add date-time functions for fold constant for Nereids.
This is the list of executable date-time function nereids supports up to now:
- now()
- now(int)
- current_timestamp()
- current_timestamp(int)
- localtime()
- localtimestamp()
- curdate()
- current_date()
- curtime()
- current_time()
- date_{add/sub}(),{years/months/days/hours/minutes/seconds}_{add/sub}()
- datediff()
- {date/datev2}()
- {year/quarter/month/day/hour/minute/second}()
- dayof{year/month/week}()
- date_format()
- date_trunc()
- from_days()
- last_day()
- to_monday()
- from_unixtime()
- unix_timestamp()
- utc_timestamp()
- to_date()
- to_days()
- str_to_date()
- makedate()

2. solved problem:
- enable datev2/datetimev2 default.
- refactor Nereids foldConstantOnFE and support fold nested expression.
- separate the executable into multi-files for easily-reading and adding new functions
2023-05-17 21:26:31 +08:00
5300b21db7 [Bug](DECIMALV3) report failure if a decimal value is overflow (#18336) 2023-04-17 13:18:14 +08:00
b919cbe487 [ehancement](nereids) Enhancement for limit clause (#16114)
support limit offset without order by.
the legacy planner supoort this feature in PR #15218
2023-01-28 11:04:03 +08:00
a97f582b93 [fix](nereids) use DAYS as default unit for DATE_ADD and DATE_SUB function (#15559) 2023-01-04 01:55:15 +08:00
6bec1ffc47 [feature](planner) remove restrict of offset without order by (#15218)
Support SELECT * FROM tbl LIMIT 5, 3;
2022-12-26 09:37:41 +08:00
4dbe30d37b [regression](vectorized) delete vectorized config in regression tests (#15126) 2022-12-16 17:08:29 +08:00
3286fb48ab [fix](if) fix coredump of if const (#14858) 2022-12-07 09:43:10 +08:00
18b9db17b3 [fix](test) move cases in query to query_p0 (#14452) 2022-11-22 21:35:18 +08:00
b15e0a9fb5 [Bug](function) fix bug of if function of nullable column process (#13779) 2022-10-31 08:38:53 +08:00
859ffa6304 [bugfix](concat) be crash caused by function concat(ifnull) (#13693) 2022-10-28 08:42:51 +08:00
1f9eec5462 [Regression](datev2) Add test cases for datev2/datetimev2 (#11831) 2022-08-19 10:57:55 +08:00
ff1971f916 [improvement](test) add dryRun option and group all cases into either p0 or p1 (#11576)
1. add dryRun option to list tests
2. group all cases into p0 p1 p2
2022-08-17 22:45:53 +08:00