diff options
Diffstat (limited to 'python/pyspark/sql/context.py')
| -rw-r--r-- | python/pyspark/sql/context.py | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/python/pyspark/sql/context.py b/python/pyspark/sql/context.py index 3f168f718b..313f15e6d9 100644 --- a/python/pyspark/sql/context.py +++ b/python/pyspark/sql/context.py @@ -351,6 +351,8 @@ class SQLContext(object): :return: a DataFrame >>> l = [('Alice', 1)] + >>> sqlCtx.createDataFrame(l).collect() + [Row(_1=u'Alice', _2=1)] >>> sqlCtx.createDataFrame(l, ['name', 'age']).collect() [Row(name=u'Alice', age=1)] @@ -359,6 +361,8 @@ class SQLContext(object): [Row(age=1, name=u'Alice')] >>> rdd = sc.parallelize(l) + >>> sqlCtx.createDataFrame(rdd).collect() + [Row(_1=u'Alice', _2=1)] >>> df = sqlCtx.createDataFrame(rdd, ['name', 'age']) >>> df.collect() [Row(name=u'Alice', age=1)] @@ -377,14 +381,17 @@ class SQLContext(object): >>> df3 = sqlCtx.createDataFrame(rdd, schema) >>> df3.collect() [Row(name=u'Alice', age=1)] + + >>> sqlCtx.createDataFrame(df.toPandas()).collect() # doctest: +SKIP + [Row(name=u'Alice', age=1)] """ if isinstance(data, DataFrame): raise TypeError("data is already a DataFrame") if has_pandas and isinstance(data, pandas.DataFrame): - data = self._sc.parallelize(data.to_records(index=False)) if schema is None: schema = list(data.columns) + data = [r.tolist() for r in data.to_records(index=False)] if not isinstance(data, RDD): try: @@ -399,7 +406,8 @@ class SQLContext(object): if isinstance(schema, (list, tuple)): first = data.first() if not isinstance(first, (list, tuple)): - raise ValueError("each row in `rdd` should be list or tuple") + raise ValueError("each row in `rdd` should be list or tuple, " + "but got %r" % type(first)) row_cls = Row(*schema) schema = self._inferSchema(data.map(lambda r: row_cls(*r)), samplingRatio) |