vizkidd commented on issue #38843:
URL: https://github.com/apache/arrow/issues/38843#issuecomment-1824217244
Thank you. How can I make a List of Structs?
My Current schema looks like this :
```cpp
seq_info_type = arrow::struct_({
arrow::field("num_alignments", arrow::int8()),
arrow::field("seqids", arrow::struct_({arrow::field("qseqid",
arrow::utf8()),
arrow::field("sseqid",
arrow::utf8())})),
arrow::field("seqs", arrow::struct_({arrow::field("qseq",
arrow::large_utf8()),
arrow::field("sseq",
arrow::large_utf8())})),
arrow::field("strands", arrow::utf8()),
arrow::field("lengths", arrow::struct_({arrow::field("qlen",
arrow::int8()),
arrow::field("slen",
arrow::int8())})),
});
hsp_type = arrow::struct_({arrow::field("pident", arrow::float64()),
/*fill with data*/
arrow::field("comp_adj_method",
arrow::float64())});
alignment_scores_type = arrow::list({hsp_type});
blast_schema = arrow::schema({arrow::field("seq_info", seq_info_type),
arrow::field("hsps", hsp_type)});
```
I want to use `alignment_scores_type` in `blast_schema` instead of the
struct `hsp_type` so that I can store some meta-info in `seq_info_type` and
have a variable length List of Structs with the data. This was disallowed in
13.0.0 (yet to check in 14.0.1)
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