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  1. Sub-task SPARK-37389
    Check unclosed bracketed comments
  2. Sub-task SPARK-35348
    Support the utils for escapse the regex for ANSI SQL: SIMILAR TO ... ESCAPE syntax
  3. Sub-task SPARK-34382
    ANSI SQL: LATERAL derived table(T491)
  4. Sub-task SPARK-34274
    Improve performance for last_value over unbounded preceding window frame
  5. Sub-task SPARK-34257
    Improve performance for last_value over unbounded window frame
  6. Sub-task SPARK-34096
    Improve performance for nth_value ignore nulls over offset window
  7. Sub-task SPARK-33687
    ANALYZE command support analyze all tables in a specific database
  8. Sub-task SPARK-33443
    LEAD/LAG should support [ IGNORE NULLS | RESPECT NULLS ]
  9. Sub-task SPARK-33429
    Support drop column in spark also like in postgresql
  10. Sub-task SPARK-33278
    Improve the performance for FIRST_VALUE
  11. Sub-task SPARK-33186
    Respect ANSI standard and change FIRST_VALUE as pure window function.
  12. Sub-task SPARK-32934
    Improve the performance for NTH_VALUE and Reactor the OffsetWindowFunction
  13. Sub-task SPARK-32777
    Aggregation support aggregate function with multiple foldable expressions.
  14. Sub-task SPARK-32540
    Eliminate filter clause in aggregate
  15. Sub-task SPARK-32498
    Support grant/revoke access privileges like postgresql
  16. Sub-task SPARK-30825
    Add documents information for window function.
  17. Sub-task SPARK-30789
    Support (IGNORE | RESPECT) NULLS for LEAD/LAG/NTH_VALUE/FIRST_VALUE/LAST_VALUE
  18. Sub-task SPARK-30758
    Spark SQL can't display bracketed comments well in generated golden files
  19. Sub-task SPARK-30734
    AnalysisException that window RangeFrame not match RowFrame
  20. Sub-task SPARK-30727
    ANSI SQL: LAST_VALUE function
  21. Sub-task SPARK-30726
    ANSI SQL: FIRST_VALUE function
  22. Sub-task SPARK-30708
    first_value/last_value window function throws ParseException
  23. Sub-task SPARK-30707
    Lead/Lag window function throws AnalysisException without ORDER BY clause
  24. Sub-task SPARK-30472
    [SQL] ANSI SQL: Throw exception on format invalid and overflow when casting String to IntegerType.
  25. Sub-task SPARK-30396
    When there are multiple DISTINCT aggregate expressions acting on different fields, any DISTINCT aggregate expression allows the use of the FILTER clause
  26. Sub-task SPARK-30395
    When one or more DISTINCT aggregate expressions operate on the same field, the DISTINCT aggregate expression allows the use of the FILTER clause
  27. Sub-task SPARK-30276
    Support Filter expression allows simultaneous use of DISTINCT
  28. Sub-task SPARK-30220
    Support Filter expression uses IN/EXISTS predicate sub-queries
  29. Sub-task SPARK-30219
    Support Filter expression reference the outer query
  30. Sub-task SPARK-30070
    ANSI-F053: Overlaps datetimes predicate support
  31. Sub-task SPARK-29941
    Support dec as shorthand for decimal
  32. Sub-task SPARK-29631
    Support ANSI SQL CREATE SEQUENCE
  33. Sub-task SPARK-29587
    Real data type is not supported in Spark SQL which is supporting in postgresql
  34. Sub-task SPARK-29098
    Test both ANSI mode and Spark mode
  35. Sub-task SPARK-29096
    The exact math method should be called only when there is a corresponding function in Math
  36. Sub-task SPARK-28909
    ANSI SQL: delete and update does not support in Spark
  37. Sub-task SPARK-28880
    ANSI SQL: Nested bracketed comments
  38. Sub-task SPARK-28682
    ANSI SQL: Collation Support
  39. Sub-task SPARK-28674
    Spark should support select <columnname> into <table> from <table> where <condition> as PostgreSQL supports
  40. Sub-task SPARK-28580
    ANSI SQL: unique predicate
  41. Sub-task SPARK-28500
    adds support for `filter` clause
  42. Sub-task SPARK-28447
    ANSI SQL: Unicode escapes in literals
  43. Sub-task SPARK-28412
    ANSI SQL: OVERLAY function support byte array(T312)
  44. Sub-task SPARK-28410
    ANSI SQL(E021-05): OCTET_LENGTH function
  45. Sub-task SPARK-28377
    Fully support correlation names in the FROM clause
  46. Sub-task SPARK-28330
    ANSI SQL: Top-level <result offset clause> in <query expression>
  47. Sub-task SPARK-28329
    SELECT INTO syntax
  48. Sub-task SPARK-28328
    Support ANSI SQL:member predicate
  49. Sub-task SPARK-28325
    Support ANSI SQL:SIMILAR TO ... ESCAPE syntax
  50. Sub-task SPARK-28322
    DIV support decimal type
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