[SPARK-10245] [SQL] Fix decimal literals with precision < scale #8428
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Test build #41550 has finished for PR 8428 at commit
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Contributor
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LGTM. Merging to master and branch 1.5. |
Contributor
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btw, it will be good to add a comment to explain why we do a |
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In BigDecimal or java.math.BigDecimal, the precision could be smaller than scale, for example, BigDecimal("0.001") has precision = 1 and scale = 3. But DecimalType require that the precision should be larger than scale, so we should use the maximum of precision and scale when inferring the schema from decimal literal.
Author: Davies Liu <[email protected]>
Closes #8428 from davies/smaller_decimal.
(cherry picked from commit ec89bd8)
Signed-off-by: Yin Huai <[email protected]>
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In BigDecimal or java.math.BigDecimal, the precision could be smaller than scale, for example, BigDecimal("0.001") has precision = 1 and scale = 3. But DecimalType require that the precision should be larger than scale, so we should use the maximum of precision and scale when inferring the schema from decimal literal.