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Posted to issues@calcite.apache.org by "Jacky Woo (JIRA)" <ji...@apache.org> on 2019/08/13 07:55:00 UTC
[jira] [Updated] (CALCITE-3247) wrong sql format when transforming
function SUBSTRING to hive sql
[ https://issues.apache.org/jira/browse/CALCITE-3247?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jacky Woo updated CALCITE-3247:
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Summary: wrong sql format when transforming function SUBSTRING to hive sql (was: wrong sql format when transforming ANSI sql to hive sql)
> wrong sql format when transforming function SUBSTRING to hive sql
> -----------------------------------------------------------------
>
> Key: CALCITE-3247
> URL: https://issues.apache.org/jira/browse/CALCITE-3247
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.19.0
> Reporter: Jacky Woo
> Priority: Minor
>
> Let's assume sql = SELECT SUBSTRING('ABC', 2)
> When we use HiveSqlDialect and transform "sql", we expect SUBSTRING(' abc', 2)，but get SUBSTRING(' abc' FROM 2) which is incorrect sql format in hive.
> So maybe HiveSqlDialect behavior should be changed when transform function SUBSTRING:
> # {{SELECT SUBSTRING('ABC', 2) => SELECT SUBSTRING('ABC', 2)}}
> # {{SELECT SUBSTRING('ABC', 2, 3) => SELECT SUBSTRING('ABC', 2, 3) }}
> # {{SELECT SUBSTRING('ABC' FROM 2) => SELECT SUBSTRING('ABC', 2) }}
> # {{SELECT SUBSTRING('ABC' FROM 2 FOR 3) => SELECT SUBSTRING('ABC', 2, 3) }}
>
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