[jira] [Created] (ARROW-12963) [Parquet] Can't roundtrip required/non-nullable strings

["Jorge Leitão (Jira)" <ji...@apache.org>]

Jorge Leitão created ARROW-12963:
------------------------------------

             Summary: [Parquet] Can't roundtrip required/non-nullable strings
                 Key: ARROW-12963
                 URL: https://issues.apache.org/jira/browse/ARROW-12963
             Project: Apache Arrow
          Issue Type: Bug
          Components: Parquet
    Affects Versions: 4.0.0
            Reporter: Jorge Leitão


The following code errors with

{code:java}
  File "bla.parquet", line 1
    PAR1<<\
        ^
SyntaxError: invalid syntax
{code}

{code:java}
import pyarrow as pa

string_required = ["Hello", "bbb", "aa", "", "bbb", "abc", "bbb", "bbb", "def", "aaa"]

fields = [
    pa.field("string1", pa.utf8(), nullable=False),
]
schema = pa.schema(fields)

data = {
    "string1": string_required,
}

t = pa.table(data, schema=schema)

pa.parquet.write_table(
    t,
    "bla.parquet",
    data_page_version=f"1.0",
)

parquet_file = pa.parquet.ParquetFile("bla.parquet")

{code}




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