f891c5a7cb
planner: Fix runtime error occurs when illegal mix collate in subquery ( #24887 )
2021-05-26 21:29:35 +08:00
e9488ce2ee
*: implement tidb_bounded_staleness built-in function ( #24328 )
2021-05-18 14:15:40 +08:00
f97496d0fc
expression: Implementation of Vitess hashing algorithm. ( #23493 )
2021-04-06 23:00:32 +08:00
7f9c716854
expression, ddl: check the argument count for the generated column ( #22154 )
...
Signed-off-by: wjhuang2016 <huangwenjun1997@gmail.com >
2021-01-05 13:45:45 +08:00
c3c3063b66
expression: set IsBooleanFlag for boolean scalar functions ( #20706 )
2020-12-07 17:22:48 +08:00
de75e604ff
*: differentiate types for user variables ( #18973 )
...
Co-authored-by: lzmhhh123 <lzmhhh123@gmail.com >
2020-11-17 17:03:41 +08:00
0c36203f1d
expression: add new scalar function IsTruthWithNull ( #19621 )
2020-09-09 16:03:10 +08:00
9c2d7c2663
expression: allow function coercibility derive to DERIVATIO ... ( #19462 )
2020-09-01 21:46:41 +08:00
d355b82f1c
expression: unicode_ci support when infer collation and charset information ( #19142 )
...
* add mix unicode_ci collation support
* comments change
* bug fix
* add test
* refactor illegal mix collation message
* fmt
* fix check
* fmt
* refactor infer collation
* refactor infer collation
* add charset info
* address comments
* return bin if something wrong
Co-authored-by: ti-srebot <66930949+ti-srebot@users.noreply.github.com >
2020-08-26 11:08:21 +08:00
d1b728b278
expression: fix wrong result when select with collation ( #18665 )
2020-07-23 12:54:22 +08:00
6a49bb4a84
*: fix a bug which causes function return truncated result ( #17101 )
2020-05-12 12:54:35 +08:00
9d391949cd
expression: refactor logic about checking illegal mix collations ( #16866 )
2020-04-29 16:40:56 +08:00
5f0585415b
expression: forbidden illegal mix collate ( #16277 )
2020-04-15 14:41:27 +08:00
fde73403fd
expression: Add format_bytes and format_nano_time performance schema functions ( #14975 )
2020-03-06 11:50:46 +08:00
1771fff928
expression: make field and findInSet support collation ( #15100 )
2020-03-04 18:12:53 +08:00
1a92dc07df
collation: fix wrong collation information used in expression calculation ( #15006 )
2020-03-02 17:30:04 +08:00
568cc224f7
expression: add builtin function WEIGHT_STRING() ( #14792 )
...
Add builtin-function WEIGHT_STRING(). MySQL manual described most of its behavior except:
If the input str is of numeric types, WEIGHT_STRING() in MySQL returns NULL, so does this implementation.
If the input str is of other types rather than string or numeric, the result of WEIGHT_STRING() in MySQL is not cleared. I simply evaluated the input as string.
2020-02-28 01:52:19 +08:00
cbc2c03c36
expression: derive collation and charset information and support the Collation() builtin-func ( #14905 )
2020-02-24 19:35:49 +08:00
a22ab8f297
expression: support sequence function ( #14731 )
2020-02-17 20:11:18 +08:00
ebae5506f1
expression: fix typos ( #14797 )
2020-02-15 17:18:00 +08:00
c36f83e1b4
expression,table: fix insert partitioned table bug when the time zone change ( #14370 )
2020-01-14 17:41:21 +08:00
11b9beb969
*: resort fields for reducing the memory allocated ( #14270 )
2020-01-07 19:10:09 +08:00
d006443194
type: encapsulate Time API ( #14288 )
2019-12-31 12:41:09 +08:00
d7206fb43b
expression: use new metadata instead of implicit_args ( #13962 )
2019-12-09 13:51:40 +08:00
0a22034420
executor: add SHOW BUILTINS command ( #12941 )
2019-12-06 14:13:00 +08:00
7de620055d
expression: support expression reverse evaluation framework ( #13738 )
2019-12-05 11:50:09 +08:00
05298ed6a5
expression: implement vectorized evaluation for builtin field(Real/Int/String) ( #13171 )
2019-11-12 18:57:36 +08:00
a28fc711d7
expression: implement vectorized evaluation for builtinIn*Sig ( #13090 )
2019-11-05 20:55:47 -06:00
875873b7ca
expression: implement vectorized evaluation using go generate for builtin compare (LT/LE/GT/GE/EQ/NE/NullEQ)(Real/Decimal/String/Datetime/Duration/Json) ( #12875 )
2019-10-29 19:27:17 +08:00
b8cd65714f
*: record and print the plan in slow log. ( #12179 )
2019-10-17 22:13:19 +08:00
542ba1299d
expression: fix incorrect result of logical operators ( #12173 )
2019-10-14 21:31:33 +08:00
2354fad905
ddl: implement SQL functions allowed / blocked rules in genera… ( #12251 )
2019-10-10 12:37:25 +08:00
35e308f561
expression: go generate vectorized addtime functions ( #12224 )
2019-09-26 16:30:01 +08:00
10519498a9
expression: add builtin function tidb_decode_key() ( #12193 )
2019-09-24 10:02:29 +08:00
98b3aeb274
executor: go generate builtin_control_vec.go ( #12140 )
2019-09-12 15:21:46 +08:00
ba8461d83f
expression: implement vectorized evaluation for builtinRepeatSig ( #12014 )
2019-09-04 17:35:01 +08:00
c07fcc4a34
executor: make the projection executor support vectorized expression evaluation ( #11917 )
2019-08-30 13:41:05 +08:00
06342ddbe2
expression: make builtinCastIntAsInt support vectorized evaluation ( #11826 )
2019-08-28 12:00:35 +08:00
62f1a54680
expression: remove row-vec convertor and introduce Vectorized() to check if an expression supports vectorized evaluation explicitly ( #11884 )
2019-08-27 20:16:35 +08:00
6f76bbe1f7
Introduce individual vectorized evaluation methods for each type. ( #11815 )
2019-08-22 10:51:25 +08:00
096deba00b
executor: introduce the column buffer allocator for vectorized evaluation ( #11743 )
2019-08-16 15:46:16 +08:00
5e54680ca3
expression: make baseBuiltinFunc support converting from row-based evaluation to vectorized evaluation
2019-08-14 15:02:44 +08:00
adb3071c90
*: refine the attribute definition of types.Time and types.Dur… ( #11672 )
2019-08-14 11:30:40 +08:00
d54f0a2bd4
expression: add vectorized evaluation methods to Expression ( #11530 )
2019-08-01 13:28:23 +08:00
ff0132ff34
expression, parser: add function octet_length support ( #11451 )
2019-07-26 14:21:15 +08:00
1e403873d9
expression: reuse tipb.Expr 'val' to push down expression implicit parameters ( #10790 )
2019-06-21 12:55:14 +08:00
778c3f4a5a
privilege, executor: add SET ROLE and CURRENT_ROLE support ( #9581 )
2019-03-21 13:11:27 +08:00
09a5c8028e
plan: derive col is not null from col op col conditions ( #8603 )
...
Check whether the `op` condition is null rejected, if yes, derive
`col is not null` for both sides of inner join, and for inner side
of outer join.
Also, remove duplicate conditions before pushing them down. Check
if the condition is mutable before removing duplicates.
For AntiSemiJoin, AntiLeftOuterSemiJoin and LeftOuterSemiJoin, do
not generate new `is not null` conditions.
2019-01-30 10:53:46 +08:00
2f6639d12b
expression: add builtin function tidb_parse_tso ( #8385 )
2018-11-28 22:37:44 +08:00
29f14d4178
*: change default charset and collation from 'utf8 utf8_bin' to 'utf8mb4 utf8mb4_bin' ( #7965 )
2018-11-09 16:32:21 +08:00
