[SPARK-13242] [SQL] codegen fallback in case-when if there many branches #11606
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Test build #52755 has finished for PR 11606 at commit
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Merging this into 1.6 branch. |
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## What changes were proposed in this pull request? If there are many branches in a CaseWhen expression, the generated code could go above the 64K limit for single java method, will fail to compile. This PR change it to fallback to interpret mode if there are more than 20 branches. ## How was this patch tested? Add tests Author: Davies Liu <davies@databricks.com> Closes #11606 from davies/fix_when_16.
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What changes were proposed in this pull request?
If there are many branches in a CaseWhen expression, the generated code could go above the 64K limit for single java method, will fail to compile. This PR change it to fallback to interpret mode if there are more than 20 branches.
How was this patch tested?
Add tests