table_env.from_elements([(1, 'Hi'), (2, 'Hello')]) table.get_schema() [3]: root |-- _1: BIGINT |-- _2: STRING Create a Table with an explicit schema. 1.1. Getting Started 13 pyflink-docs, Release release-1 FIELD("id", DataTypes. ˓→TINYINT()), DataTypes.FIELD("data", DataTypes. ˓→STRING())])) table.get_schema() [4]: root |-- id: TINYINT |-- data: STRING Create a Table from a Pandas DataFrame [5]: import from_pandas(df) table.get_schema() /Users/duanchen/sourcecode/flink/flink-python/dev/.conda/lib/python3.7/site-packages/ ˓→pyflink/table/utils.py:55: FutureWarning: Schema passed to names= option, please

table_env.from_elements([(1, 'Hi'), (2, 'Hello')]) table.get_schema() [3]: root |-- _1: BIGINT |-- _2: STRING Create a Table with an explicit schema. 1.1. Getting Started 13 pyflink-docs, Release release-1 FIELD("id", DataTypes. ˓→TINYINT()), DataTypes.FIELD("data", DataTypes. ˓→STRING())])) table.get_schema() [4]: root |-- id: TINYINT |-- data: STRING Create a Table from a Pandas DataFrame [5]: import from_pandas(df) table.get_schema() /Users/duanchen/sourcecode/flink/flink-python/dev/.conda/lib/python3.7/site-packages/ ˓→pyflink/table/utils.py:55: FutureWarning: Schema passed to names= option, please

aggregations. // count words within 10 minute windows, updating every 5 minutes. // streaming DataFrame of schema {time: Timestamp, word: String} val calls = ... val actionHours = calls.groupBy(col("action"), window(col("time") (3/3) // count words within 10 minute windows, updating every 5 minutes. // streaming DataFrame of schema {timestamp: Timestamp, word: String} val words = ... val windowedCounts = words.withWatermark("timestamp"

a/blob/master/ ClusterData2011_2.md Make sure to read and become familiar with the format and schema document: • https://drive.google.com/file/d/0B5g07T_gRDg9Z0lsSTEtTWtpOW8/view Download and play

stream as a mathematical structure, e.g. a sequence of (finite) relation states over a common schema R: [r1(R), r2(R), ..., ], where the individual relations are unordered sets. src dest bytes 1