1. The first property is `only_specified_database`:
In the past, `Jdbc Catalog` will synchronize all database from source database.
Now we add a parameter called `only_specified_database` to jdbc catalog to allow only the specified database to be synchronized, eg:
```sql
create resource if not exists ${resource_name} properties(
"type"="jdbc",
"user"="root",
"password"="123456",
"jdbc_url" = "jdbc:mysql://172.18.0.1:${mysql_port}/doris_test?useSSL=false",
"driver_url" = "https://doris-community-test-1308700295.cos.ap-hongkong.myqcloud.com/jdbc_driver/mysql-connector-java-8.0.25.jar",
"driver_class" = "com.mysql.cj.jdbc.Driver",
"only_specified_database" = "true"
);
```
if `only_specified_database` is `true`, jdbc catalog will only synchronize the database which is specified in `jdbc_url`.
2. The second property is `lower_case_table_names`:
This property will synchronize jdbc external data source table names in lower case.
```sql
create resource if not exists ${resource_name} properties(
"type"="jdbc",
"user"="doris_test",
"password"="123456",
"jdbc_url" = "jdbc:oracle:thin:@172.18.0.1:${oracle_port}:${SID}",
"driver_url" = "https://doris-community-test-1308700295.cos.ap-hongkong.myqcloud.com/jdbc_driver/ojdbc8.jar",
"driver_class" = "oracle.jdbc.driver.OracleDriver",
"lower_case_table_names" = "true"
);
```
This patchset applies the following changes:
using vertical compaction machanism to do segcompaction
basic (WIP) refraction to separate segcompaction logic from BetaRowsetWriter
add segcompaction specific ut and regression tests
Make database, table, column and other names support unicode by changing LABEL_REGEX COMMON_NAME_REGIEX COMMON_TABLE_NAME_REGEX COLUMN_NAME_REGEX regular expressions in class FeNameFormat.
P.S. @SharpRay has transfered PR #13467 to me, and I‘m responsible for the task now. There will be some modifications during the review period, so I create a new PR and the original #13467 could be closed. Thanks.
bug: some chinese word not sort by pinyin in GBK coding
CREATE TABLE `test_convert` (
`a` varchar(100) NULL
) ENGINE=OLAP
DUPLICATE KEY(`a`)
DISTRIBUTED BY HASH(`a`) BUCKETS 3
PROPERTIES (
"replication_allocation" = "tag.location.default: 1"
);
insert into test_convert values("b"), ("a"), ("c"), ("睿"), ("多"), ("丝");
Query OK, 6 rows affected (0.03 sec)
{'label':'insert_ca73a6acc2194d5b_888218a3949355a6', 'status':'VISIBLE', 'txnId':'18068'}
mysql [test]>select * from test_convert;
+------+
| a |
+------+
| a |
| c |
| 丝 |
| b |
| 多 |
| 睿 |
+------+
6 rows in set (0.01 sec)
mysql [test]>select * from test_convert order by convert(a using gbk);
+------+
| a |
+------+
| a |
| b |
| c |
| 多 |
| 丝 |
| 睿 |
+------+
6 rows in set (0.01 sec)
1. Make sure all sub types which STRUCT supported work correctly;
2. remove unused variable `_need_validate_data`;
3. lazy init min or max decimal to support nested DecimalV2 column validate;
Co-authored-by: cambyzju <zhuxiaoli01@baidu.com>
Hive store all the data without partition columns to a default partition named __HIVE_DEFAULT_PARTITION__.
Doris will fail to get the this partition when the partition column type is INT or something else that
__HIVE_DEFAULT_PARTITION__ couldn't convert to.
This pr is to support hive default partition, set the column value to NULL for the missing partition columns.
Loading a big local file will cause `INTERNAL_ERROR]too many filtered rows` issue since the bytebuffer from mysql client always use the same byte array.
And the later bytes will overwrite the previous one and make wrong bytes order among the network.
Copy the byte array and then fill it into network.
Enhance aggregate function `collect_set` and `collect_list` to support optional `max_size` param,
which enables to limit the number of elements in result array.
* [Optimize](simd json reader) Cached search results for previous row (keyed as index in JSON object) - used as a hint.
`_simdjson_set_column_value` could become a hot spot while parsing json in simdjson mode,
introduce `_prev_positions` to cache results for previous row (keyed as index in JSON object) due to the json name field order,
should be quite the same between each lines
* fix case
The data type `NUMBER(p,s)` of oracle has some different of doris decimal type in semantics.
For Oracle Number(p,s) type：
1.
if s<0 , it means this is an Interger. This `NUMBER(p,s)` has (p+|s| ) significant digit,
and rounding will be performed at s position.
eg: if we insert 1234567 into `NUMBER(5,-2)` type, then the oracle will store 1234500. In this case,
Doris will use
int type (`TINYINT/SMALLINT/INT/.../LARGEINT`).
2. if s>=0 && s<p , it just like doris Decimal(p,s) behavior.
3. if s>=0 && s>p, it means this is a decimal(like 0.xxxxx).
p represents how many digits can be left to the left after the decimal point,
the figure after the decimal point s will be rounded. eg: we can not insert 0.0123456 into `NUMBER(5,7)` type,
because there must be two zeros on the right side of the decimal point,
we can insert 0.0012345 into `NUMBER(5,7)` type. In this case, Doris will use `DECIMAL(s,s)`
4. if we don't specify p and s for `NUMBER(p,s)` like `NUMBER`,
the p and s of `NUMBER` are uncertain. In this case, doris can not determine p and s,
so doris can not determine data type.
This pr implements the list default partition referred in related #15507.
It's similar as GreenPlum's default's partition which would store all data not satisfying prior partition key's
constraints and optimizer wouldn't filter default partition which means default partition would be scanned
each time you try to select data from one table with default partition.
User could either create one table with default partition or alter add one default partition.
```sql
PARTITION LIST(key) {
PARTITION p1 values in (xx,xx),
PARTITION DEFAULT
}
ALTER TABLE XXX ADD PARTITION DEFAULT
```
We don't support automatically migrate data inside default partition which meets newly added partition key's
constraint to newly add partition when alter add new partition. User should select default partition using new
constraints as predicate and insert them to new partition.
```sql
insert into tbl select * from tbl partition default where partition_key=xx;
```
Consider the sql bellow:
select sum(cc.qlnm) as qlnm
FROM
outerjoin_A
left join (SELECT
outerjoin_B.b,
coalesce(outerjoin_C.c, 0) AS qlnm
FROM
outerjoin_B
inner JOIN outerjoin_C ON outerjoin_B.b = outerjoin_C.c
) cc on outerjoin_A.a = cc.b
group by outerjoin_A.a;
The coalesce(outerjoin_C.c, 0) was calculated in the agg node, which is wrong.
This pr correct this, and the expr is calculated in the inner join node now.
- change for Nereids
1. add a variable length parameter to the ctor of Count for a good error reporting of Count(a, b)
2. refactor StringRegexPredicate, let it inherit from ScalarFunction
3. remove useless class TypeCollection
4. use catalog.Type.Collection to check expression arguments type
5. change type coercion for TimestampArithmetic, divide, integral divide, comparison predicate, case when and in predicate. Let them same as legacy planner.
- change for legacy planner
1. change the common type of floating and Decimal from Decimal to Double
