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https://issues.apache.org/jira/browse/CALCITE-5557?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oliver Lee updated CALCITE-5557:
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Summary: Add SAFE_CAST (BigQuery compatibility) (was: Add SAFE_CAST (big
BigQuery compatibility))
> Add SAFE_CAST (BigQuery compatibility)
> --------------------------------------
>
> Key: CALCITE-5557
> URL: https://issues.apache.org/jira/browse/CALCITE-5557
> Project: Calcite
> Issue Type: New Feature
> Reporter: Oliver Lee
> Assignee: Oliver Lee
> Priority: Minor
>
> Implement SAFE_CAST per BigQuery specifications
> [https://cloud.google.com/bigquery/docs/reference/standard-sql/functions-and-operators#safe_casting]
> Equivalent to CAST(), except it will return {{null}} instead of throwing an
> exception if the casting fails.
> {quote}SAFE_CAST('1' as INT) -> 1
> SAFE_CAST('a' as INT) -> NULL
> SAFE_CAST("2022-12-12" as DATE) -> DATE('2022-12-12')
> SAFE_CAST(1 AS BOOLEAN) -> true
> SAFE_CAST('A' AS BOOLEAN) -> null
> {quote}
>
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