d06604f60a
### What changes were proposed in this pull request? This PR is to add a redirect to sql-ref.html. ### Why are the changes needed? Before Spark 3.0 release, we are using sql-reference.md, which was replaced by sql-ref.md instead. A number of Google searches I’ve done today have turned up https://spark.apache.org/docs/latest/sql-reference.html, which does not exist any more. Thus, we should add a redirect to sql-ref.html. ### Does this PR introduce _any_ user-facing change? https://spark.apache.org/docs/latest/sql-reference.html will be redirected to https://spark.apache.org/docs/latest/sql-ref.html ### How was this patch tested? Build it in my local environment. It works well. The sql-reference.html file was generated. The contents are like: ``` <!DOCTYPE html> <html lang="en-US"> <meta charset="utf-8"> <title>Redirecting…</title> <link rel="canonical" href="http://localhost:4000/sql-ref.html"> <script>location="http://localhost:4000/sql-ref.html"</script> <meta http-equiv="refresh" content="0; url=http://localhost:4000/sql-ref.html"> <meta name="robots" content="noindex"> <h1>Redirecting…</h1> <a href="http://localhost:4000/sql-ref.html">Click here if you are not redirected.</a> </html> ``` Closes #28914 from gatorsmile/addRedirectSQLRef. Authored-by: gatorsmile <gatorsmile@gmail.com> Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
41 lines
2 KiB
Markdown
41 lines
2 KiB
Markdown
---
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layout: global
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title: SQL Reference
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redirect_from: /sql-reference
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displayTitle: SQL Reference
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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 SQL is Apache Spark's module for working with structured data. This guide is a reference for Structured Query Language (SQL) and includes syntax, semantics, keywords, and examples for common SQL usage. It contains information for the following topics:
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* [ANSI Compliance](sql-ref-ansi-compliance.html)
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* [Data Types](sql-ref-datatypes.html)
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* [Datetime Pattern](sql-ref-datetime-pattern.html)
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* [Functions](sql-ref-functions.html)
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* [Built-in Functions](sql-ref-functions-builtin.html)
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* [Scalar User-Defined Functions (UDFs)](sql-ref-functions-udf-scalar.html)
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* [User-Defined Aggregate Functions (UDAFs)](sql-ref-functions-udf-aggregate.html)
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* [Integration with Hive UDFs/UDAFs/UDTFs](sql-ref-functions-udf-hive.html)
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* [Identifiers](sql-ref-identifier.html)
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* [Literals](sql-ref-literals.html)
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* [Null Semanitics](sql-ref-null-semantics.html)
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* [SQL Syntax](sql-ref-syntax.html)
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* [DDL Statements](sql-ref-syntax-ddl.html)
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* [DML Statements](sql-ref-syntax-dml.html)
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* [Data Retrieval Statements](sql-ref-syntax-qry.html)
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* [Auxiliary Statements](sql-ref-syntax-aux.html)
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