[ https://issues.apache.org/jira/browse/ARROW-15652?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Antoine Pitrou resolved ARROW-15652. ------------------------------------ Fix Version/s: 8.0.0 Resolution: Fixed Issue resolved by pull request 12434 [https://github.com/apache/arrow/pull/12434] > [C++] GDB plugin printer gives error with extension type > -------------------------------------------------------- > > Key: ARROW-15652 > URL: https://issues.apache.org/jira/browse/ARROW-15652 > Project: Apache Arrow > Issue Type: Bug > Components: C++ > Reporter: Joris Van den Bossche > Assignee: Antoine Pitrou > Priority: Major > Labels: pull-request-available > Fix For: 8.0.0 > > Time Spent: 1h > Remaining Estimate: 0h > > Copying the example from ARROW-9078 > {code} > import pyarrow as pa > import pyarrow.parquet as pq > class MyStructType(pa.PyExtensionType): > > def __init__(self): > pa.PyExtensionType.__init__(self, pa.struct([('left', pa.int64()), > ('right', pa.int64())])) > > def __reduce__(self): > return MyStructType, () > struct_array = pa.StructArray.from_arrays( > [ > pa.array([0, 1], type="int64", from_pandas=True), > pa.array([1, 2], type="int64", from_pandas=True), > ], > names=["left", "right"], > ) > mystruct_array = pa.ExtensionArray.from_storage(MyStructType(), struct_array) > table = pa.table({'a': mystruct_array}) > pq.write_table(table, "test_struct.parquet") > {code} > What I was doing is then reading the table back in, with a breakpoint at > {{ApplyOriginalMetadata}}. But I suppose any other way to get into the > debugger is fine as well (and maybe also with a simpler extension type, i.e. > not with a struct type as storage type, I didn't yet try that). > This gives: > {code} > (gdb) p origin_field > $3 = (const arrow::Field &) @0x555bbb308190: Python Exception <class > 'gdb.error'> A syntax error in expression, near `) > (0x555bbb277020)).ToString()'.: > arrow::field("a", ) > {code} > for the field/type being extension type > cc [~apitrou] -- This message was sent by Atlassian Jira (v8.20.1#820001)