branch-3.1: [feat][fix](jdbc) support custom function rules in catalog properties #51471 #51787#52467
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morrySnow merged 3 commits intoapache:branch-3.1from Jun 30, 2025
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…che#51471) Add new jdbc catalog property: `function_rules`. This property will enable user to customize which function can be pushed down to jdbc datasource, and which function should be rewrote to function in jdbc datasource: eg: ``` create catalog jdbc properties ( ... 'function_rules' = '{"pushdown" : {"supported": ["to_date"], "unsupported" : ["abs"]}, "rewrite" : {"to_date" : "date2"}}' ) ``` The value is a json format config: - `pushdown`: the value of `pushdown` is a map, the `supported` array indicate the function that can be pushed down to datasource. the `unsupported` array indicate the function that can not. - `rewrite`: the value of `rewrite` is map, if the function can be pushed down to datasource, it will be renamed to the value in rewrite map. eg: ``` select * from jdbc_table where abs(k1) > 0 and to_date("k2") = "2022-10-10" ``` will generate sql: ``` select * from jdbc_table where date2("k2") = "2022-10-10" ``` You can see the `abs()` is not pushed down, and `to_date()` is rewrote to `date2()`. ------- This change is compatible with previous version. Previously, there are some hard coded function rules, and also a FE config `jdbc_mysql_unsupported_pushdown_functions`. Doris will merge the user specified `function_rules` and the above rules.
…e Lombok annotations (apache#51787) Related PR: apache#51471
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morningman
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Jun 30, 2025
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bp #51471 #51787