yaooqinn opened a new pull request #27176: [WIP][SPIP]Support year-month and day-time interval types URL: https://github.com/apache/spark/pull/27176 ### What changes were proposed in this pull request? propose to add two new interval types which are year-month and day-time intervals for better ANSI support and future improvements. We will keep the current CalenderIntervalType but mark it as deprecated until we find the right time to remove it completely. The backward compatibility of the old interval type usages in 2.4 will be guaranteed. Here is the design doc: [SPIP] Support Year-Month and Day-Time Intervals - https://docs.google.com/document/d/1JNRzcBk4hcm7k2cOXSG1A9U9QM2iNGQzBSXZzScUwAU/edit?usp=sharing ### Why are the changes needed? ### Does this PR introduce any user-facing change? <!-- If yes, please clarify the previous behavior and the change this PR proposes - provide the console output, description and/or an example to show the behavior difference if possible. If no, write 'No'. --> yes, add new interval types but old behaviors can still work with legacy config ### How was this patch tested? ut
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