.. ################################################################################ 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. ################################################################################ =========== Expressions =========== Expressions =========== .. currentmodule:: pyflink.table.expressions .. autosummary:: :toctree: api/ col lit range_ and_ or_ not_ current_database current_date current_time current_timestamp current_watermark local_time local_timestamp to_date to_timestamp to_timestamp_ltz temporal_overlaps date_format timestamp_diff convert_tz from_unixtime unix_timestamp array row map_ map_from_arrays row_interval pi e rand rand_integer atan2 negative concat concat_ws uuid null_of log source_watermark if_then_else coalesce with_columns without_columns json_string json_object json_object_agg json_array json_array_agg call call_sql Expression ========== arithmetic functions -------------------- .. currentmodule:: pyflink.table.expression .. autosummary:: :toctree: api/ Expression.exp Expression.log10 Expression.log2 Expression.ln Expression.log Expression.cosh Expression.sinh Expression.sin Expression.cos Expression.tan Expression.cot Expression.asin Expression.acos Expression.atan Expression.tanh Expression.degrees Expression.radians Expression.sqrt Expression.abs Expression.sign Expression.round Expression.between Expression.not_between Expression.then Expression.if_null Expression.is_null Expression.is_not_null Expression.is_true Expression.is_false Expression.is_not_true Expression.is_not_false Expression.distinct Expression.sum Expression.sum0 Expression.min Expression.max Expression.count Expression.avg Expression.first_value Expression.last_value Expression.list_agg Expression.stddev_pop Expression.stddev_samp Expression.var_pop Expression.var_samp Expression.collect Expression.alias Expression.cast Expression.try_cast Expression.asc Expression.desc Expression.in_ Expression.start Expression.end Expression.bin Expression.hex Expression.truncate string functions ---------------- .. currentmodule:: pyflink.table.expression .. autosummary:: :toctree: api/ Expression.substring Expression.substr Expression.trim_leading Expression.trim_trailing Expression.trim Expression.replace Expression.char_length Expression.upper_case Expression.lower_case Expression.init_cap Expression.like Expression.similar Expression.position Expression.lpad Expression.rpad Expression.overlay Expression.regexp Expression.regexp_replace Expression.regexp_extract Expression.from_base64 Expression.to_base64 Expression.ascii Expression.chr Expression.decode Expression.encode Expression.left Expression.right Expression.instr Expression.locate Expression.parse_url Expression.ltrim Expression.rtrim Expression.repeat Expression.over Expression.reverse Expression.split_index Expression.str_to_map temporal functions ------------------ .. currentmodule:: pyflink.table.expression .. autosummary:: :toctree: api/ Expression.to_date Expression.to_time Expression.to_timestamp Expression.extract Expression.floor Expression.ceil advanced type helper functions ------------------------------ .. currentmodule:: pyflink.table.expression .. autosummary:: :toctree: api/ Expression.get Expression.flatten Expression.at Expression.cardinality Expression.element Expression.array_concat Expression.array_contains Expression.array_distinct Expression.array_join Expression.array_position Expression.array_remove Expression.array_reverse Expression.array_max Expression.array_slice Expression.array_min Expression.array_union Expression.map_entries Expression.map_keys Expression.map_values time definition functions ------------------------- .. currentmodule:: pyflink.table.expression .. autosummary:: :toctree: api/ Expression.rowtime Expression.proctime Expression.year Expression.years Expression.quarter Expression.quarters Expression.month Expression.months Expression.week Expression.weeks Expression.day Expression.days Expression.hour Expression.hours Expression.minute Expression.minutes Expression.second Expression.seconds Expression.milli Expression.millis hash functions -------------- .. currentmodule:: pyflink.table.expression .. autosummary:: :toctree: api/ Expression.md5 Expression.sha1 Expression.sha224 Expression.sha256 Expression.sha384 Expression.sha512 Expression.sha2 JSON functions -------------- .. currentmodule:: pyflink.table.expression .. autosummary:: :toctree: api/ Expression.is_json Expression.json_exists Expression.json_value Expression.json_query