[flink] Optionally show all registered functions #4267
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Thanks @grzegorz8 for improving the Flink support! |
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What changes were proposed in this pull request?
Flink UDFs can be registered in any catalog in any database, but current implementation shows only UDFs defined in current database.
In the new implementation, we iterate through all catalogs and databases to lists all defined functions. The results are then extended with Flink system functions. Returned user functions names are fully qualified (
<catalog_name>.<database_name>.<function_name>).How was this patch tested?