Maxim Gekk created SPARK-34727:
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Summary: Difference in results of casting float to timestamp
Key: SPARK-34727
URL: https://issues.apache.org/jira/browse/SPARK-34727
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 3.2.0
Reporter: Maxim Gekk
The code below portraits the issue:
{code:sql}
spark-sql> CREATE TEMP VIEW v1 AS SELECT 16777215.0f AS f;
spark-sql> SELECT * FROM v1;
1.6777215E7
spark-sql> SELECT CAST(f AS TIMESTAMP) FROM v1;
1970-07-14 07:20:15
spark-sql> CACHE TABLE v1;
spark-sql> SELECT * FROM v1;
1.6777215E7
spark-sql> SELECT CAST(f AS TIMESTAMP) FROM v1;
1970-07-14 07:20:14.951424
{code}
The result from the cached view *1970-07-14 07:20:14.951424* is different from
un-cached view *1970-07-14 07:20:15*.
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