Fix a bug that JDBC catalog/database/table should be add to GsonUtil
Fix a class loader issue that sometime it will cause ClassNotFoundException
Fix regression test to use different catalog name.
Comment out 2 regression tests:
regression-test/suites/query_p0/system/test_query_sys.groovy
regression-test/suites/statistics/alter_col_stats.groovy
Need to be fixed later
Fix two things:
1. Fix that the MySQL table displays the garbled code even if the UTF8 is specified for table.
2. Fix that `test_mysql_jdbc_catalog.out` lack of returned data for table `ex_tb13`.
Issue Number: close #xxx
I add jdbc catalog for doris multi-catalog feature.
Currently, the jdbc catalog only supports MYSQL DBMS.
TODO:
support for postgre DB
Support for other databases.
Problem summary
For jdbc catalog, we can create catalog like:
CREATE CATALOG jdbc4 PROPERTIES (
"type"="jdbc",
"jdbc.user"="root",
"jdbc.password"="123456",
"jdbc.jdbc_url" = "jdbc:mysql://127.0.0.1:13396/demo?yearIsDateType=false",
"jdbc.driver_url" = "file:/mnt/disk2/ftw/tools/jar/mysql-connector-java-5.1.47/mysql-connector-java-5.1.47.jar",
"jdbc.driver_class" = "com.mysql.jdbc.Driver"
);
Note:
yearIsDateType is a param of jdbc:
If yearIsDateType configuration property is set to false, then the returned object type is java.sql.Short. If set to true (the default), then the returned object is of type java.sql.Date with the date set to January 1st, at midnight.
To compat with mysql, we force the use of yearIsDateType=false in FE. if user sets yearIsDateType=true, doris FE will force to change yearIsDateType=false.
estimate plan cost without column statistics.
change list:
1. remove original StatsCalculator, it is replaced by StatsCalculatorV2. rename StatsCalculatorV2 to StatsCalculator
2. remove FilterSelectivityCalculator, it is replaced by FilterEstimation
3. remove session var:ENABLE_NEREIDS_STATS_DERIVE_V2
4. add ColumnStatistics.isUnKnown, which means the column is not analyzed, and its stats is not accurate.
5. add estimatedRowCount() function for OLAP tables
6. add unit tests for FilterEstimation and StatsCalculator
the cold-hot separation feature is still
under development. And seems there are some unsolved feature remains.
So I add a fe config enable_storage_policy, and default is false, to disable the creation and usage of storage policy by default.
So that user can aware that he is using an experimental feature on his own, and it will not be released formally in v1.2.0.
Disable storage policy by default, user can not use or create storage policy. Configured by enable_storage_policy.
Remove property remote_storage_policy, it is duplicate with storage_policy
Change the persist field in DataProperty.java.
And remove remoteCooldownTime from DataProperty, because it can be got from StoragePolicy.
Add tpch 1g orc test case in hive docker
Refactor some suites dir of catalog test cases.
And "-internal" for dlf endpoint, to support access oss with aliyun vpc.
Adjust the field naming rules when creating tables.
The original table field rules are letters or underscores or @ characters as the first letter,
followed by a maximum of 63 characters, and the total cannot exceed 64 characters.
However, in many industries, such as the financial industry, the length of the derived fields often exceeds 64
characters, so adjust the regular The rules are from 64 characters to 128 characters.
Many users load data from Hive to Doris through appearance or BrokerLoad.
Arabic numerals can be used as the first letter in the Hive table, so the regular rules are adjusted
to support Arabic numerals as the first letter.
When required cache hasn't been loaded yet, cache would always return ColumnStatistics.DEFAULT which not define the max/min literal expr, add judge for that.
json reader DCHECK fail because of missing TYPE_STRING
fix bug that if no file is found, the tvf will throw NPE.
The predicate conjuncts can not be pushed down to parquet reader if this is a load task.
Because the predicate should be applied on column of dest table, not on column of source file.
Add a temp property "use_new_load_scan_node" of broker load to make regression test happy.
So that we can use new load scan node for a certain job and avoid setting global FE config.
Fix bug that the ArithmeticExpr's write method is not implement, causing FE crash when creating function like:
CREATE ALIAS FUNCTION IF NOT EXISTS mesh_udf_test1(INT,INT) WITH PARAMETER(n,d) AS ROUND(1+floor(n/d));
Add if exists and if not exists for drop and create function
Fix a minor bug that if file does not exist, hdfs() table valued function will throw NPE
remove group by constants, like:
before apply rule:
select 1, k1, min(k2), max(k3) from t1 group by 1, 2;
after apply rule:
select 1, k1, min(k2), max(k3) from t1 group by k1;
MySQL [db]> SELECT SUM(a.r[1]) as active_user_num, SUM(a.r[2]) as active_user_num_1day, SUM(a.r[3]) as active_user_num_3day, SUM(a.r[4]) as active_user_num_7day FROM ( SELECT user_id, retention( day = '2022-11-01', day = '2022-11-02', day = '2022-11-04', day = '2022-11-07') as r FROM login_event WHERE (day >= '2022-11-01') AND (day <= '2022-11-21') GROUP BY user_id ) a;
ERROR 1105 (HY000): errCode = 2, detailMessage = sum requires a numeric parameter: sum(%element_extract%(a.r, 1))
1. change jsonb_extract_string behavior: convert to string instead of NULL if the type of json path is not string
2. move jsonb tutorial doc to JSONB data type
Remove those projects that used for column pruning only and don't do any expression calculation, So that we could avoid some redundant data copy in do_projection of BE side.
BE will crash when querying partitioned hive table with text format
and put partition column at first of select items.
1. FE should use file slots to set the column mapping index of csv file.
2. BE should use `get_by_name` of block to get right column in a block in csv reader.
This pr did two things:
1. 【new logical plan】add **LogicalCheckPolicy** before UnboundRelation in LogicalPlanBuilder.
2. 【new rule】turn **LogicalCheckPolicy** to LogicalFilter if row policy exist, otherwise remove it.
1.Support in bitmap syntax, like 'where k1 in (select bitmap_column from tbl)';
2.Support bitmap runtime filter. Generate a bitmap filter using the right table bitmap and push it down to the left table storage layer for filtering.
in the previous, the result is:
```
mysql> select array_position([1, null], null);
+--------------------------------------+
| array_position(ARRAY(1, NULL), NULL) |
+--------------------------------------+
| NULL |
+--------------------------------------+
1 row in set (0.02 sec)
```
but after this commit, the result become:
```
mysql> select array_position([1, null], null);
+--------------------------------------+
| array_position(ARRAY(1, NULL), NULL) |
+--------------------------------------+
| 2 |
+--------------------------------------+
1 row in set (0.02 sec)
```
This pr contribute:
- support explain CTE;
- refine CTE, fix the bug: reuse the same analyzed plan which LogicalOlapScan has the same relationId;
- change EliminateAliasNode to LogicalSubQueryAliasToLogicalProject and move to the top of rewrite stage, so we can simply observe the analyzed plan by the LogicalSubQueryAlias with alias;
- job traverse left child first, so the ExprId growth from left child to right child.
