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From: fhueske <git@git.apache.org>
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Subject: [GitHub] flink pull request #3715: [FLINK-6232][Table&SQL]Support proctime inner equi...
Content-Type: text/plain
Message-Id: <20170517154110.36A89DFF17@git1-us-west.apache.org>
Date: Wed, 17 May 2017 15:41:10 +0000 (UTC)
archived-at: Wed, 17 May 2017 15:41:25 -0000

Github user fhueske commented on a diff in the pull request:

    https://github.com/apache/flink/pull/3715#discussion_r117037366
  
    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/join/JoinUtil.scala ---
    @@ -0,0 +1,468 @@
    +/*
    + * 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.
    + */
    +package org.apache.flink.table.runtime.join
    +
    +import java.math.{BigDecimal => JBigDecimal}
    +import java.util
    +import java.util.EnumSet
    +
    +import org.apache.calcite.avatica.util.TimeUnit
    +import org.apache.calcite.rel.`type`.RelDataType
    +import org.apache.calcite.rel.core.JoinRelType
    +import org.apache.calcite.rex._
    +import org.apache.calcite.sql.fun.SqlStdOperatorTable
    +import org.apache.calcite.sql.parser.SqlParserPos
    +import org.apache.calcite.sql.{SqlIntervalQualifier, SqlKind}
    +import org.apache.flink.api.common.functions.{FilterFunction, FlatJoinFunction}
    +import org.apache.flink.api.common.typeinfo.{BasicTypeInfo, TypeInformation}
    +import org.apache.flink.table.api.{TableConfig, TableException}
    +import org.apache.flink.table.calcite.FlinkTypeFactory
    +import org.apache.flink.table.codegen.{CodeGenException, CodeGenerator, ExpressionReducer}
    +import org.apache.flink.table.plan.nodes.logical.FlinkLogicalJoin
    +import org.apache.flink.table.plan.schema.RowSchema
    +import org.apache.flink.types.Row
    +
    +import scala.collection.JavaConversions._
    +import scala.collection.mutable.ArrayBuffer
    +
    +
    +object JoinUtil {
    +
    +  /**
    +    * Analyze time-condtion to get time boundary for each stream and get the time type
    +    * and return condition without time-condition.
    +    *
    +    * @param  condition   other condtion include time-condition
    +    * @param  leftFieldCount left stream fields count
    +    * @param  inputType   left and right connect stream type
    +    * @param  rexBuilder   util to build rexNode
    +    * @param  config      table environment config
    +    */
    +  private[flink] def analyzeTimeBoundary(
    --- End diff --
    
    This method needs some good unit tests.


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