Package org.apache.drill.exec.physical.impl.project
package org.apache.drill.exec.physical.impl.project
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ClassDescriptionOutputWidthExpressions are used to capture the information required to calculate the width of the output produced by a variable-width expression.Used to represent fixed-width values used in an expression.FunctionCallExpr captures the details required to calculate the width of the output produced by a function that produces variable-width output.IfElseWidthExpr is uded to capture an
IfExpression.VarLenReadExpr captures the inputColumnName and the readExpression used to read a variable length column.Implements callbacks to build the physical vectors for the project record batch.ProjectMemoryManager(PMM) is used to estimate the size of rows produced by ProjectRecordBatch.