[FLINK-18478] AvroDeserializationSchema does not work with types generated by avrohugger

• Type: Bug
• Status: Reopened
• Priority: Not a Priority
• Resolution: Unresolved
• Component/s: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
• Labels: auto-deprioritized-major auto-deprioritized-minor pull-request-available
• Assignee: Unassigned
• Reporter: Aljoscha Krettek
• Created: 02/Jul/20 18:53
• Updated: 13/Nov/21 10:38

Description

The main problem is that the code in SpecificData.createSchema() tries to reflectively read the SCHEMA$ field, that is normally there in Avro generated classes. However, avrohugger generates this field in a companion object, which the reflective Java code will therefore not find.

This is also described in these ML threads:

• https://lists.apache.org/thread.html/5db58c7d15e4e9aaa515f935be3b342fe036e97d32e1fb0f0d1797ee@%3Cuser.flink.apache.org%3E
• https://lists.apache.org/thread.html/cf1c5b8fa7f095739438807de9f2497e04ffe55237c5dea83355112d@%3Cuser.flink.apache.org%3E

Issue Links

• is a clone of: FLINK-12501 AvroTypeSerializer does not work with types generated by avrohugger
• is cloned by: FLINK-18692 AvroSerializationSchema does not work with types generated by avrohugger
• is cloned by: FLINK-18693 AvroSerializationSchema does not work with types generated by avrohugger
• links to: GitHub Pull Request #12859