9c956abb1d
### What changes were proposed in this pull request? Add doc about `TRANSFORM` and related function.  ### Why are the changes needed? ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Not need Closes #31010 from AngersZhuuuu/SPARK-33976. Lead-authored-by: Angerszhuuuu <angers.zhu@gmail.com> Co-authored-by: angerszhu <angers.zhu@gmail.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>
54 lines
2.7 KiB
Markdown
54 lines
2.7 KiB
Markdown
---
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layout: global
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title: Data Retrieval
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displayTitle: Data Retrieval
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license: |
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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---
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Spark supports <code>SELECT</code> statement that is used to retrieve rows
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from one or more tables according to the specified clauses. The full syntax
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and brief description of supported clauses are explained in
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[SELECT](sql-ref-syntax-qry-select.html) section. The SQL statements related
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to SELECT are also included in this section. Spark also provides the
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ability to generate logical and physical plan for a given query using
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[EXPLAIN](sql-ref-syntax-qry-explain.html) statement.
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* [SELECT Statement](sql-ref-syntax-qry-select.html)
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* [WHERE Clause](sql-ref-syntax-qry-select-where.html)
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* [GROUP BY Clause](sql-ref-syntax-qry-select-groupby.html)
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* [HAVING Clause](sql-ref-syntax-qry-select-having.html)
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* [ORDER BY Clause](sql-ref-syntax-qry-select-orderby.html)
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* [SORT BY Clause](sql-ref-syntax-qry-select-sortby.html)
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* [CLUSTER BY Clause](sql-ref-syntax-qry-select-clusterby.html)
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* [DISTRIBUTE BY Clause](sql-ref-syntax-qry-select-distribute-by.html)
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* [LIMIT Clause](sql-ref-syntax-qry-select-limit.html)
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* [Common Table Expression](sql-ref-syntax-qry-select-cte.html)
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* [Hints](sql-ref-syntax-qry-select-hints.html)
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* [Inline Table](sql-ref-syntax-qry-select-inline-table.html)
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* [File](sql-ref-syntax-qry-select-file.html)
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* [JOIN](sql-ref-syntax-qry-select-join.html)
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* [LIKE Predicate](sql-ref-syntax-qry-select-like.html)
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* [Set Operators](sql-ref-syntax-qry-select-setops.html)
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* [TABLESAMPLE](sql-ref-syntax-qry-select-sampling.html)
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* [Table-valued Function](sql-ref-syntax-qry-select-tvf.html)
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* [Window Function](sql-ref-syntax-qry-select-window.html)
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* [CASE Clause](sql-ref-syntax-qry-select-case.html)
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* [PIVOT Clause](sql-ref-syntax-qry-select-pivot.html)
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* [LATERAL VIEW Clause](sql-ref-syntax-qry-select-lateral-view.html)
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* [TRANSFORM Clause](sql-ref-syntax-qry-select-transform.html)
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* [EXPLAIN Statement](sql-ref-syntax-qry-explain.html)
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