[jira] [Updated] (ARROW-11803) [Rust] [Parquet] Support v2 LogicalType

["Neville Dipale (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ARROW-11803?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neville Dipale updated ARROW-11803:
-----------------------------------
    Summary: [Rust] [Parquet] Support v2 LogicalType  (was: [Rust] Parquet] Support v2 LogicalType)

> [Rust] [Parquet] Support v2 LogicalType
> ---------------------------------------
>
>                 Key: ARROW-11803
>                 URL: https://issues.apache.org/jira/browse/ARROW-11803
>             Project: Apache Arrow
>          Issue Type: Sub-task
>            Reporter: Neville Dipale
>            Assignee: Neville Dipale
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> We currently do not read nor write the version 2 logical types. This is mainly because we do not have a mapping for it from parquet-format-rs.
> To implement this, we can:
> - convert "parquet::basic::LogicalType" to "parquet::basic::ConvertedType"
> - implement "parquet::basic::LogicalType" which mirrors "parquet_format::LogicalType"
> - create a mapping between ConvertedType and LogicalType
> - write LogicalType to "parquet_format::SchemaElement" if v2 of the writer is used
> This would be a good starting point for implementing 2.6 types (UUID, NANOS precision time & timestamp).
> Follow-up work would be:
> - parsing v2 of the schema [ARROW-11365]
> - Using v2 in the Arrow writer (mostly schema conversion)
> - Supporting nanosecond precision time & timestamp



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