srowen commented on a change in pull request #27282: [SPARK-30573][DOC] Document WHERE Clause of SELECT statement in SQL Reference URL: https://github.com/apache/spark/pull/27282#discussion_r368610661
########## File path: docs/sql-ref-syntax-qry-select-where.md ########## @@ -0,0 +1,115 @@ +--- +layout: global +title: SELECT +displayTitle: WHERE clause +license: | + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +--- +The <code>WHERE</code> clause is used to limit the results of the <code>FROM</code> +clause of query or subquery based on the specified condition. + +### Syntax +{% highlight sql %} +WHERE boolean_expression +{% endhighlight %} + +### Parameters +<dl> + <dt><code><em>boolean_expression</em></code></dt> + <dd> + Specifies any expression that evaluates to a result type <code>boolean</code>. Two or + more expressions may be combined together using comparision operators + ( <code>></code>, <code>>=</code>, <code>=</code>, <code><</code>, <code><=</code> Review comment: You can't combine boolean expressions with `<`, etc. though, which sounds like what this implies. You just want to mention the boolean operators like `AND`, right? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services --------------------------------------------------------------------- To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org
