[SPARK-35026][SQL] Support nested CUBE/ROLLUP/GROUPING SETS in GROUPING SETS
### What changes were proposed in this pull request? PG and Oracle both support use CUBE/ROLLUP/GROUPING SETS in GROUPING SETS's grouping set as a sugar syntax.  In this PR, we support it in Spark SQL too ### Why are the changes needed? Keep consistent with PG and oracle ### Does this PR introduce _any_ user-facing change? User can write grouping analytics like ``` SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(ROLLUP(a, b)); SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), (a), ()); SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b), (a), ())); ``` ### How was this patch tested? Added Test Closes #32201 from AngersZhuuuu/SPARK-35026. Authored-by: Angerszhuuuu <angers.zhu@gmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>
This commit is contained in:
Angerszhuuuu
Wenchen Fan
parent
7242d7f774
commit
b22d54a58a
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@ -24,8 +24,8 @@ license: |
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The `GROUP BY` clause is used to group the rows based on a set of specified grouping expressions and compute aggregations on
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the group of rows based on one or more specified aggregate functions. Spark also supports advanced aggregations to do multiple
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aggregations for the same input record set via `GROUPING SETS`, `CUBE`, `ROLLUP` clauses.
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The grouping expressions and advanced aggregations can be mixed in the `GROUP BY` clause.
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See more details in the `Mixed Grouping Analytics` section. When a FILTER clause is attached to
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The grouping expressions and advanced aggregations can be mixed in the `GROUP BY` clause and nested in a `GROUPING SETS` clause.
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See more details in the `Mixed/Nested Grouping Analytics` section. When a FILTER clause is attached to
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an aggregate function, only the matching rows are passed to that function.
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### Syntax
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@ -95,13 +95,17 @@ aggregate_name ( [ DISTINCT ] expression [ , ... ] ) [ FILTER ( WHERE boolean_ex
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(product, warehouse, location), (warehouse), (product), (warehouse, product), ())`.
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The N elements of a `CUBE` specification results in 2^N `GROUPING SETS`.
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* **Mixed Grouping Analytics**
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* **Mixed/Nested Grouping Analytics**
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A GROUP BY clause can include multiple `group_expression`s and multiple `CUBE|ROLLUP|GROUPING SETS`s.
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A GROUP BY clause can include multiple `group_expression`s and multiple `CUBE|ROLLUP|GROUPING SETS`s.
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`GROUPING SETS` can also have nested `CUBE|ROLLUP|GROUPING SETS` clauses, e.g.
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`GROUPING SETS(ROLLUP(warehouse, location), CUBE(warehouse, location))`,
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`GROUPING SETS(warehouse, GROUPING SETS(location, GROUPING SETS(ROLLUP(warehouse, location), CUBE(warehouse, location))))`.
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`CUBE|ROLLUP` is just a syntax sugar for `GROUPING SETS`, please refer to the sections above for
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how to translate `CUBE|ROLLUP` to `GROUPING SETS`. `group_expression` can be treated as a single-group
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`GROUPING SETS` under this context. For multiple `GROUPING SETS` in the `GROUP BY` clause, we generate
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a single `GROUPING SETS` by doing a cross-product of the original `GROUPING SETS`s. For example,
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a single `GROUPING SETS` by doing a cross-product of the original `GROUPING SETS`s. For nested `GROUPING SETS` in the `GROUPING SETS` clause,
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we simply take its grouping sets and strip it. For example,
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`GROUP BY warehouse, GROUPING SETS((product), ()), GROUPING SETS((location, size), (location), (size), ())`
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and `GROUP BY warehouse, ROLLUP(product), CUBE(location, size)` is equivalent to
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`GROUP BY GROUPING SETS(
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@ -114,6 +118,9 @@ aggregate_name ( [ DISTINCT ] expression [ , ... ] ) [ FILTER ( WHERE boolean_ex
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(warehouse, size),
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(warehouse))`.
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`GROUP BY GROUPING SETS(GROUPING SETS(warehouse), GROUPING SETS((warehouse, product)))` is equivalent to
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`GROUP BY GROUPING SETS((warehouse), (warehouse, product))`.
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* **aggregate_name**
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Specifies an aggregate function name (MIN, MAX, COUNT, SUM, AVG, etc.).
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@ -606,7 +606,13 @@ groupByClause
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;
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groupingAnalytics
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: (ROLLUP | CUBE | GROUPING SETS) '(' groupingSet (',' groupingSet)* ')'
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: (ROLLUP | CUBE) '(' groupingSet (',' groupingSet)* ')'
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| GROUPING SETS '(' groupingElement (',' groupingElement)* ')'
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;
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groupingElement
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: groupingAnalytics
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| groupingSet
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;
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groupingSet
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@ -993,26 +993,7 @@ class AstBuilder extends SqlBaseBaseVisitor[AnyRef] with SQLConfHelper with Logg
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.map(groupByExpr => {
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val groupingAnalytics = groupByExpr.groupingAnalytics
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if (groupingAnalytics != null) {
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val groupingSets = groupingAnalytics.groupingSet.asScala
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.map(_.expression.asScala.map(e => expression(e)).toSeq)
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if (groupingAnalytics.CUBE != null) {
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// CUBE(A, B, (A, B), ()) is not supported.
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if (groupingSets.exists(_.isEmpty)) {
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throw new ParseException("Empty set in CUBE grouping sets is not supported.",
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groupingAnalytics)
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}
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Cube(groupingSets.toSeq)
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} else if (groupingAnalytics.ROLLUP != null) {
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// ROLLUP(A, B, (A, B), ()) is not supported.
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if (groupingSets.exists(_.isEmpty)) {
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throw new ParseException("Empty set in ROLLUP grouping sets is not supported.",
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groupingAnalytics)
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}
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Rollup(groupingSets.toSeq)
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} else {
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assert(groupingAnalytics.GROUPING != null && groupingAnalytics.SETS != null)
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GroupingSets(groupingSets.toSeq)
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}
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visitGroupingAnalytics(groupingAnalytics)
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} else {
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expression(groupByExpr.expression)
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}
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@ -1021,6 +1002,38 @@ class AstBuilder extends SqlBaseBaseVisitor[AnyRef] with SQLConfHelper with Logg
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}
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}
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override def visitGroupingAnalytics(
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groupingAnalytics: GroupingAnalyticsContext): BaseGroupingSets = {
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val groupingSets = groupingAnalytics.groupingSet.asScala
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.map(_.expression.asScala.map(e => expression(e)).toSeq)
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if (groupingAnalytics.CUBE != null) {
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// CUBE(A, B, (A, B), ()) is not supported.
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if (groupingSets.exists(_.isEmpty)) {
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throw new ParseException("Empty set in CUBE grouping sets is not supported.",
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groupingAnalytics)
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}
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Cube(groupingSets.toSeq)
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} else if (groupingAnalytics.ROLLUP != null) {
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// ROLLUP(A, B, (A, B), ()) is not supported.
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if (groupingSets.exists(_.isEmpty)) {
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throw new ParseException("Empty set in ROLLUP grouping sets is not supported.",
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groupingAnalytics)
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}
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Rollup(groupingSets.toSeq)
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} else {
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assert(groupingAnalytics.GROUPING != null && groupingAnalytics.SETS != null)
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val groupingSets = groupingAnalytics.groupingElement.asScala.flatMap { expr =>
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val groupingAnalytics = expr.groupingAnalytics()
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if (groupingAnalytics != null) {
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visitGroupingAnalytics(groupingAnalytics).selectedGroupByExprs
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} else {
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Seq(expr.groupingSet().expression().asScala.map(e => expression(e)).toSeq)
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}
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}
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GroupingSets(groupingSets.toSeq)
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}
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}
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/**
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* Add [[UnresolvedHint]]s to a logical plan.
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*/
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@ -80,3 +80,14 @@ SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), (a), ());
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SELECT a, b, count(1) FROM testData GROUP BY a, CUBE(a, b), GROUPING SETS((a, b), (a), ());
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SELECT a, b, count(1) FROM testData GROUP BY a, CUBE(a, b), ROLLUP(a, b), GROUPING SETS((a, b), (a), ());
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-- Support nested CUBE/ROLLUP/GROUPING SETS in GROUPING SETS
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(ROLLUP(a, b));
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b), (a), ()));
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), GROUPING SETS(ROLLUP(a, b)));
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b, a, b), (a, b, a), (a, b));
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b, a, b), (a, b, a), (a, b)));
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(ROLLUP(a, b), CUBE(a, b));
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b), (a), ()), GROUPING SETS((a, b), (a), (b), ()));
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), (a), (), (a, b), (a), (b), ());
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@ -1,5 +1,5 @@
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-- Automatically generated by SQLQueryTestSuite
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-- Number of queries: 44
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-- Number of queries: 52
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-- !query
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@ -1067,3 +1067,227 @@ struct<a:int,b:int,count(1):bigint>
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3 NULL 2
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(ROLLUP(a, b))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 2 1
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1 NULL 2
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1 NULL 2
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2 1 1
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2 2 1
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2 NULL 2
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2 NULL 2
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3 1 1
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3 2 1
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b), (a), ()))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 2 1
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1 NULL 2
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1 NULL 2
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2 1 1
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2 2 1
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2 NULL 2
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2 NULL 2
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3 1 1
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3 2 1
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), GROUPING SETS(ROLLUP(a, b)))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 1 1
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1 2 1
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1 2 1
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1 NULL 2
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1 NULL 2
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2 1 1
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2 1 1
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2 2 1
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2 2 1
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2 NULL 2
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2 NULL 2
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3 1 1
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3 1 1
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3 2 1
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3 2 1
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b, a, b), (a, b, a), (a, b))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 1 1
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1 1 1
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1 2 1
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1 2 1
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1 2 1
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2 1 1
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2 1 1
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2 1 1
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2 2 1
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2 2 1
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2 2 1
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3 1 1
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3 1 1
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3 1 1
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3 2 1
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3 2 1
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3 2 1
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b, a, b), (a, b, a), (a, b)))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 1 1
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1 1 1
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1 2 1
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1 2 1
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1 2 1
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2 1 1
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2 1 1
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2 1 1
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2 2 1
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2 2 1
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2 2 1
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3 1 1
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3 1 1
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3 1 1
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3 2 1
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3 2 1
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3 2 1
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(ROLLUP(a, b), CUBE(a, b))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 1 1
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1 1 1
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1 2 1
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1 2 1
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1 2 1
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1 NULL 2
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1 NULL 2
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1 NULL 2
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1 NULL 2
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2 1 1
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2 1 1
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2 1 1
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2 2 1
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2 2 1
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2 2 1
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2 NULL 2
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2 NULL 2
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2 NULL 2
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2 NULL 2
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3 1 1
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3 1 1
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3 1 1
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3 2 1
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3 2 1
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3 2 1
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3 NULL 2
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3 NULL 2
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b), (a), ()), GROUPING SETS((a, b), (a), (b), ()))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 1 1
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1 1 1
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1 2 1
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1 2 1
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1 2 1
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1 NULL 2
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1 NULL 2
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1 NULL 2
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1 NULL 2
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2 1 1
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2 1 1
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2 1 1
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2 2 1
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2 2 1
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2 2 1
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2 NULL 2
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2 NULL 2
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2 NULL 2
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2 NULL 2
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3 1 1
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3 1 1
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3 1 1
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3 2 1
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3 2 1
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3 2 1
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3 NULL 2
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3 NULL 2
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), (a), (), (a, b), (a), (b), ())
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 1 1
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1 1 1
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1 2 1
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1 2 1
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1 2 1
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1 NULL 2
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1 NULL 2
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1 NULL 2
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1 NULL 2
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2 1 1
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2 1 1
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2 1 1
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2 2 1
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2 2 1
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2 2 1
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2 NULL 2
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2 NULL 2
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2 NULL 2
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2 NULL 2
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3 1 1
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3 1 1
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3 1 1
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3 2 1
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3 2 1
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3 2 1
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3 NULL 2
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3 NULL 2
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3 NULL 2
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3 NULL 2
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@ -1,5 +1,5 @@
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-- Automatically generated by SQLQueryTestSuite
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-- Number of queries: 44
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-- Number of queries: 52
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-- !query
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@ -1087,3 +1087,227 @@ struct<a:int,b:int,count(1):bigint>
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3 NULL 2
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(ROLLUP(a, b))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 2 1
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1 NULL 2
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1 NULL 2
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2 1 1
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2 2 1
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2 NULL 2
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2 NULL 2
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3 1 1
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3 2 1
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b), (a), ()))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 2 1
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1 NULL 2
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1 NULL 2
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2 1 1
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2 2 1
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2 NULL 2
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2 NULL 2
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3 1 1
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3 2 1
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), GROUPING SETS(ROLLUP(a, b)))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 1 1
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1 2 1
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1 2 1
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1 NULL 2
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1 NULL 2
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2 1 1
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2 1 1
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2 2 1
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2 2 1
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2 NULL 2
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2 NULL 2
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3 1 1
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3 1 1
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3 2 1
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3 2 1
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3 NULL 2
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3 NULL 2
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-- !query
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SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b, a, b), (a, b, a), (a, b))
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-- !query schema
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struct<a:int,b:int,count(1):bigint>
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-- !query output
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1 1 1
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1 1 1
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1 1 1
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1 2 1
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1 2 1
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1 2 1
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2 1 1
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||||
2 1 1
|
||||
2 1 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
|
||||
|
||||
-- !query
|
||||
SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b, a, b), (a, b, a), (a, b)))
|
||||
-- !query schema
|
||||
struct<a:int,b:int,count(1):bigint>
|
||||
-- !query output
|
||||
1 1 1
|
||||
1 1 1
|
||||
1 1 1
|
||||
1 2 1
|
||||
1 2 1
|
||||
1 2 1
|
||||
2 1 1
|
||||
2 1 1
|
||||
2 1 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
|
||||
|
||||
-- !query
|
||||
SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(ROLLUP(a, b), CUBE(a, b))
|
||||
-- !query schema
|
||||
struct<a:int,b:int,count(1):bigint>
|
||||
-- !query output
|
||||
1 1 1
|
||||
1 1 1
|
||||
1 1 1
|
||||
1 2 1
|
||||
1 2 1
|
||||
1 2 1
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
2 1 1
|
||||
2 1 1
|
||||
2 1 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
|
||||
|
||||
-- !query
|
||||
SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS(GROUPING SETS((a, b), (a), ()), GROUPING SETS((a, b), (a), (b), ()))
|
||||
-- !query schema
|
||||
struct<a:int,b:int,count(1):bigint>
|
||||
-- !query output
|
||||
1 1 1
|
||||
1 1 1
|
||||
1 1 1
|
||||
1 2 1
|
||||
1 2 1
|
||||
1 2 1
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
2 1 1
|
||||
2 1 1
|
||||
2 1 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
|
||||
|
||||
-- !query
|
||||
SELECT a, b, count(1) FROM testData GROUP BY a, GROUPING SETS((a, b), (a), (), (a, b), (a), (b), ())
|
||||
-- !query schema
|
||||
struct<a:int,b:int,count(1):bigint>
|
||||
-- !query output
|
||||
1 1 1
|
||||
1 1 1
|
||||
1 1 1
|
||||
1 2 1
|
||||
1 2 1
|
||||
1 2 1
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
1 NULL 2
|
||||
2 1 1
|
||||
2 1 1
|
||||
2 1 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
2 2 1
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
2 NULL 2
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 1 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
3 2 1
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
3 NULL 2
|
||||
|
|
|
|||
Loading…
Reference in a new issue