1101fbaf04
[fix](column_complex) wrong type of Field returned by ColumnComplex ( #43515 ) ( #43860 )
2024-11-13 19:07:00 +08:00
a525d5c5a3
[refactor](decimal) change type name Decimal128 to Decimal128V2, Decimal128I to Decimal128V3 to avoid confusion ( #29265 )
...
change type name Decimal128 to Decimal128V2, Decimal128I to Decimal128V3 to avoid confusion
2023-12-29 10:11:44 +08:00
642e5cdb69
[Fix](Status) Make Status [[nodiscard]] and handle returned Status correctly ( #23395 )
2023-09-29 22:38:52 +08:00
16a394da0e
[chore](build) Use include-what-you-use to optimize includes (PART III) ( #18958 )
...
Currently, there are some useless includes in the codebase. We can use a tool named include-what-you-use to optimize these includes. By using a strict include-what-you-use policy, we can get lots of benefits from it.
2023-04-24 14:51:51 +08:00
f377c26bf7
[refactor][be] Optimize headers ( #9708 )
2022-05-30 16:12:10 +08:00
8470543144
[Improvement] fix typo ( #9743 )
2022-05-25 19:29:01 +08:00
650e3a6ba0
[feature-wip](array-type) array_contains support more nested data types ( #9170 )
...
Co-authored-by: cambyzju <zhuxiaoli01@baidu.com >
2022-05-13 12:42:40 +08:00
5a44eeaf62
[refactor] Unify all unit tests into one binary file ( #8958 )
...
1. solved the previous delayed unit test file size is too large (1.7G+) and the unit test link time is too long problem problems
2. Unify all unit tests into one file to significantly reduce unit test execution time to less than 3 mins
3. temporarily disable stream_load_test.cpp, metrics_action_test.cpp, load_channel_mgr_test.cpp because it will re-implement part of the code and affect other tests
2022-04-12 15:30:40 +08:00
4d516bece8
[feature-wip](array-type)Add element_at and subscript functions ( #8597 )
...
Describe the overview of changes.
1. add function element_at;
2. support element_subscript([]) to get element of array, col_array[N] <==> element_at(col_array, N);
3. return error message instead of BE crash while array function execute failed;
element_at(array, index) desc:
> Returns element of array at given **(1-based)** index.
If **index < 0**, accesses elements from the last to the first.
Returns NULL if the index exceeds the length of the array or the array is NULL.
Usage example:
1. create table with ARRAY type column and insert some data:
```
+------+------+--------+
| k1 | k2 | k3 |
+------+------+--------+
| 1 | 2 | [1, 2] |
| 2 | 3 | NULL |
| 4 | NULL | [] |
| 3 | NULL | NULL |
+------+------+--------+
```
2. enable vectorized:
```
set enable_vectorized_engine=true;
```
3. element_subscript([]) usage example:
```
> select k1,k3,k3[1] from array_test;
+------+--------+----------------------------+
| k1 | k3 | %element_extract%(`k3`, 1) |
+------+--------+----------------------------+
| 3 | NULL | NULL |
| 1 | [1, 2] | 1 |
| 2 | NULL | NULL |
| 4 | [] | NULL |
+------+--------+----------------------------+
```
4. element_at function usage example:
```
> select k1,k3 from array_test where element_at(k3, -1) = 2;
+------+--------+
| k1 | k3 |
+------+--------+
| 1 | [1, 2] |
+------+--------+
```
2022-04-02 12:03:56 +08:00
