import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
public SqlUnnestOperator(boolean withOrdinality) {
  super(
      "UNNEST",
      SqlKind.UNNEST,
      200,
      true,
      null,
      null,
      OperandTypes.repeat(SqlOperandCountRanges.from(1),
          OperandTypes.SCALAR_OR_RECORD_COLLECTION_OR_MAP));
  this.withOrdinality = withOrdinality;
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
private Checker(int min, int max) {
  range = SqlOperandCountRanges.between(min, max);
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
public SqlOperandCountRange getOperandCountRange() {
	return SqlOperandCountRanges.between(1, 2);
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
private Checker(int size) {
  range = SqlOperandCountRanges.of(size);
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
public SqlOperandCountRange getOperandCountRange() {
  return SqlOperandCountRanges.of(2);
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
public SqlOperandCountRange getOperandCountRange() {
  return SqlOperandCountRanges.between(2, 3);
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
public SqlOperandCountRange getOperandCountRange() {
  return SqlOperandCountRanges.of(1);
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
public SqlOperandCountRange getOperandCountRange() {
  return SqlOperandCountRanges.any();
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
@Override public SqlOperandCountRange getOperandCountRange() {
  return SqlOperandCountRanges.of(2);
}
 

import org.apache.calcite.sql.type.SqlOperandCountRanges; //导入依赖的package包/类
public SqlOperandCountRange getOperandCountRange() {
  return SqlOperandCountRanges.between(1, 2);
}