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Error while accessing CSV tables when using Glue or Hive > 3.0 as metastore #15869

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imjalpreet opened this issue Mar 24, 2021 · 1 comment · May be fixed by #18324
Open

Error while accessing CSV tables when using Glue or Hive > 3.0 as metastore #15869

imjalpreet opened this issue Mar 24, 2021 · 1 comment · May be fixed by #18324
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@imjalpreet
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imjalpreet commented Mar 24, 2021 •
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OpenCSVSerde deserializes columns from csv file into strings only. Currently, the CSV support in Presto relies on the metastore to return all column datatypes as string.

Hive < 3.0 returns all the datatypes as String(when using OpenCSVSerde) to Presto whereas Glue Metastore and Hive > 3.0 return the original schema declared datatype.

Related slack discussion: https://prestodb.slack.com/archives/C07JH9WMQ/p1616488019059400
@imjalpreet imjalpreet assigned imjalpreet and unassigned imjalpreet Mar 24, 2021
@ashishtadose
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I can take a look at this.

@pratyakshsharma pratyakshsharma linked a pull request Sep 11, 2022 that will close this issue
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@imjalpreet imjalpreet reopened this Mar 3, 2023
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Fix error while accessing tables when using Glue pratyakshsharma/presto
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@ashishtadose @imjalpreet @rohanpednekar @pratyakshsharma