spark git commit: [SPARK-18016][SQL][FOLLOWUP] merge declareAddedFunctions, initNestedClasses and declareNestedClasses

Repository: spark Updated Branches: refs/heads/master 08e0d033b -> 680b33f16 [SPARK-18016][SQL][FOLLOWUP] merge declareAddedFunctions, initNestedClasses and declareNestedClasses ## What changes were proposed in this pull request? These 3 methods have to be used together, so it makes more

spark git commit: [SPARK-21100][SQL][FOLLOWUP] cleanup code and add more comments for Dataset.summary

Repository: spark Updated Branches: refs/heads/master 457dc9ccb -> 0e80ecae3 [SPARK-21100][SQL][FOLLOWUP] cleanup code and add more comments for Dataset.summary ## What changes were proposed in this pull request? Some code cleanup and adding comments to make the code more readable. Changed

spark git commit: [MINOR][DOC] Improve the docs about how to correctly set configurations

Repository: spark Updated Branches: refs/heads/master 680b33f16 -> 457dc9ccb [MINOR][DOC] Improve the docs about how to correctly set configurations ## What changes were proposed in this pull request? Spark provides several ways to set configurations, either from configuration file, or from

spark git commit: [SPARK-21083][SQL][BRANCH-2.1] Store zero size and row count when analyzing empty table

Repository: spark Updated Branches: refs/heads/branch-2.1 5e2bfd5bc -> 2c2846241 [SPARK-21083][SQL][BRANCH-2.1] Store zero size and row count when analyzing empty table ## What changes were proposed in this pull request? We should be able to store zero size and row count after analyzing