doris

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ElvinWei 5dfdacd278 [enhancement](histogram) add histogram syntax and perstist histogram statistics (#15490 )

Histogram statistics are more expensive to collect and we collect and persist them separately.

This PR does the following work:
1. Add histogram syntax and add keyword `TABLE`
2. Add the task of collecting histogram statistics
3. Persistent histogram statistics
4. Replace fastjson with gson
5. Add unit tests...

Relevant syntax examples：
> Refer to some databases such as mysql and add the keyword `TABLE`.

```SQL
-- collect column statistics
ANALYZE TABLE statistics_test;

-- collect histogram statistics
ANALYZE TABLE statistics_test UPDATE HISTOGRAM ON col1,col2;
```

base on #15317

2023-01-07 00:55:42 +08:00

check/checkstyle

[feature-wip](array) remove array config and check array nested depth (#13428 )

2022-10-20 15:52:31 +08:00

fe-common

[feature-wip](recover) new recover ddl and support show catalog recycle bin (#13067 )

2022-10-31 17:44:56 +08:00

fe-core

[enhancement](histogram) add histogram syntax and perstist histogram statistics (#15490 )

2023-01-07 00:55:42 +08:00

hive-udf

[deps](fe)upgrade deps version (#15262 )

2022-12-24 22:18:10 +08:00

java-udf

[feature](multi-catalog) support postgresql jdbc catalog (#15570 )

2023-01-06 11:00:59 +08:00

spark-dpp

[Enhancement](fe): replace assertTrue(X.equals(X)) with assertEquals (#15356 )

2022-12-27 00:37:24 +08:00

pom.xml

[deps](fe)upgrade deps version (#15262 )

2022-12-24 22:18:10 +08:00

README

…

README

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# fe-common

This module is used to store some common classes of other modules.

# spark-dpp

This module is Spark DPP program, used for Spark Load function.
Depends: fe-common

# fe-core

This module is the main process module of FE.
Depends: fe-common, spark-dpp