Liang-Chi Hsieh 202115e7cd [SPARK-32948][SQL] Optimize to_json and from_json expression chain ... ### What changes were proposed in this pull request? This patch proposes to optimize from_json + to_json expression chain. ### Why are the changes needed? To optimize json expression chain that could be manually generated or generated automatically during query optimization. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Unit test. Closes #29828 from viirya/SPARK-32948. Authored-by: Liang-Chi Hsieh <viirya@gmail.com> Signed-off-by: Dongjoon Hyun <dhyun@apple.com>		2020-09-28 22:22:47 -07:00
..
benchmarks	[SPARK-30413][SQL] Avoid WrappedArray roundtrip in GenericArrayData constructor, plus related optimization in ParquetMapConverter	2020-01-19 19:12:19 -08:00
src	[SPARK-32948][SQL] Optimize to_json and from_json expression chain	2020-09-28 22:22:47 -07:00
pom.xml	[SPARK-32312][SQL][PYTHON][TEST-JAVA11] Upgrade Apache Arrow to version 1.0.1	2020-09-10 14:16:19 +09:00