Method isConstantImpl

fe/src/main/java/org/apache/impala/analysis/Expr.java:1555–1560

Implements isConstant() - computes the value without using 'isConstant_'.

()

   * Implements isConstant() - computes the value without using 'isConstant_'.
   */
  protected boolean isConstantImpl() {
    for (Expr expr : children_) {
      if (!expr.isConstant()) return false;
    }
    return true;
  }

  /**
   * Return true if and only if all exprs in 'exprs' are constant.