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  1. IMPALA
  2. IMPALA-2844

Select count(*) from RCFileTable throw NotImplementedException in Impala 2.3.0

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      This is a table using RCFile with complex type like "ARRAY<BIGINT>", "ARRAY<STRING>". The select count query used to work on Impala 2.2 version, but it throws exceptions in 2.3
      "ERROR: NotImplementedException: Scan of table 'default.badgzip' in format 'RC_FILE' is not supported because the table has a column 'addr_ids' with a complex type 'ARRAY<BIGINT>'.
      Complex types are supported for these file formats: AVRO, PARQUET."

      Although Impala doesn't support complex type in RC_FILE, select count should work and it works in Impala 2.2. this is a behavior regression.

      another issue, does Impala fully support complex type for AVRO? If not, we should remove "AVRO" from the error message.

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            • Assignee:
              alex.behm Alexander Behm
              Reporter:
              jyu@cloudera.com Juan Yu
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