diff options
Diffstat (limited to 'docs/sql-programming-guide.md')
| -rw-r--r-- | docs/sql-programming-guide.md | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/docs/sql-programming-guide.md b/docs/sql-programming-guide.md index 38f617d0c8..b2b007509c 100644 --- a/docs/sql-programming-guide.md +++ b/docs/sql-programming-guide.md @@ -225,7 +225,7 @@ public static class Person implements Serializable { {% endhighlight %} -A schema can be applied to an existing RDD by calling `applySchema` and providing the Class object +A schema can be applied to an existing RDD by calling `createDataFrame` and providing the Class object for the JavaBean. {% highlight java %} @@ -247,7 +247,7 @@ JavaRDD<Person> people = sc.textFile("examples/src/main/resources/people.txt").m }); // Apply a schema to an RDD of JavaBeans and register it as a table. -JavaSchemaRDD schemaPeople = sqlContext.applySchema(people, Person.class); +JavaSchemaRDD schemaPeople = sqlContext.createDataFrame(people, Person.class); schemaPeople.registerTempTable("people"); // SQL can be run over RDDs that have been registered as tables. @@ -315,7 +315,7 @@ a `SchemaRDD` can be created programmatically with three steps. 1. Create an RDD of `Row`s from the original RDD; 2. Create the schema represented by a `StructType` matching the structure of `Row`s in the RDD created in Step 1. -3. Apply the schema to the RDD of `Row`s via `applySchema` method provided +3. Apply the schema to the RDD of `Row`s via `createDataFrame` method provided by `SQLContext`. For example: @@ -341,7 +341,7 @@ val schema = val rowRDD = people.map(_.split(",")).map(p => Row(p(0), p(1).trim)) // Apply the schema to the RDD. -val peopleSchemaRDD = sqlContext.applySchema(rowRDD, schema) +val peopleSchemaRDD = sqlContext.createDataFrame(rowRDD, schema) // Register the SchemaRDD as a table. peopleSchemaRDD.registerTempTable("people") @@ -367,7 +367,7 @@ a `SchemaRDD` can be created programmatically with three steps. 1. Create an RDD of `Row`s from the original RDD; 2. Create the schema represented by a `StructType` matching the structure of `Row`s in the RDD created in Step 1. -3. Apply the schema to the RDD of `Row`s via `applySchema` method provided +3. Apply the schema to the RDD of `Row`s via `createDataFrame` method provided by `JavaSQLContext`. For example: @@ -406,7 +406,7 @@ JavaRDD<Row> rowRDD = people.map( }); // Apply the schema to the RDD. -JavaSchemaRDD peopleSchemaRDD = sqlContext.applySchema(rowRDD, schema); +JavaSchemaRDD peopleSchemaRDD = sqlContext.createDataFrame(rowRDD, schema); // Register the SchemaRDD as a table. peopleSchemaRDD.registerTempTable("people"); @@ -436,7 +436,7 @@ a `SchemaRDD` can be created programmatically with three steps. 1. Create an RDD of tuples or lists from the original RDD; 2. Create the schema represented by a `StructType` matching the structure of tuples or lists in the RDD created in the step 1. -3. Apply the schema to the RDD via `applySchema` method provided by `SQLContext`. +3. Apply the schema to the RDD via `createDataFrame` method provided by `SQLContext`. For example: {% highlight python %} @@ -458,7 +458,7 @@ fields = [StructField(field_name, StringType(), True) for field_name in schemaSt schema = StructType(fields) # Apply the schema to the RDD. -schemaPeople = sqlContext.applySchema(people, schema) +schemaPeople = sqlContext.createDataFrame(people, schema) # Register the SchemaRDD as a table. schemaPeople.registerTempTable("people") |