rapidsai/cudf

[BUG] Loading a missing column from a Parquet file results in ArrayIndexOutOfBoundsException

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#11.278 aperta il 15 lug 2022

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Descrizione

Describe the bug Attempting to load a non-existent column from a Parquet file throws ArrayIndexOutOfBoundsException instead of a more specific error.

Steps/Code to reproduce bug Try to load a single column name that does not exist from a Parquet file. For example:

Table.readParquet(ParquetOptions.builder().includeColumn("doesnotexist").build(), new java.io.File("data.parquet"))

throws the following exception:

java.lang.ArrayIndexOutOfBoundsException: 0
  at ai.rapids.cudf.Table.<init>(Table.java:96)
  at ai.rapids.cudf.Table.readParquet(Table.java:974)
  ... 49 elided

Expected behavior A more useful error exception/message should be used than an array index error.

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