org.apache.flink.sql.parser.ddl

类 SqlAlterTableDropColumn

java.lang.Object

org.apache.calcite.sql.SqlNode

org.apache.calcite.sql.SqlCall

org.apache.flink.sql.parser.ddl.SqlAlterTable

org.apache.flink.sql.parser.ddl.SqlAlterTableDropColumn

所有已实现的接口:

Cloneable

public class SqlAlterTableDropColumn
extends SqlAlterTable

SqlNode to describe ALTER TABLE [IF EXISTS] table_name DROP column clause.

Example: DDL like the below for drop column.

 -- drop single column
 ALTER TABLE prod.db.sample DROP col1;

 -- drop multiple columns
 ALTER TABLE prod.db.sample DROP (col1, col2, col3);
 

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.sql.parser.ddl.SqlAlterTable

SqlAlterTable.AlterTableContext

字段概要

从类继承的字段 org.apache.flink.sql.parser.ddl.SqlAlterTable

ifTableExists, OPERATOR, partitionSpec, tableIdentifier

从类继承的字段 org.apache.calcite.sql.SqlNode

EMPTY_ARRAY, pos

构造器概要

构造器

构造器和说明
SqlAlterTableDropColumn(org.apache.calcite.sql.parser.SqlParserPos pos, org.apache.calcite.sql.SqlIdentifier tableName, org.apache.calcite.sql.SqlNodeList columnList, boolean ifTableExists)

方法概要

限定符和类型	方法和说明
org.apache.calcite.sql.SqlNodeList	getColumnList()
List<org.apache.calcite.sql.SqlNode>	getOperandList()
void	unparse(org.apache.calcite.sql.SqlWriter writer, int leftPrec, int rightPrec)

从类继承的方法 org.apache.flink.sql.parser.ddl.SqlAlterTable

fullTableName, getOperator, getPartitionKVs, getPartitionSpec, getTableName, ifTableExists

从类继承的方法 org.apache.calcite.sql.SqlCall

accept, clone, equalsDeep, findValidOptions, getCallSignature, getFunctionQuantifier, getKind, getMonotonicity, isCountStar, isExpanded, operand, operandCount, setOperand, validate

从类继承的方法 org.apache.calcite.sql.SqlNode

clone, clone, cloneArray, equalDeep, equalDeep, equalsDeep, getParserPosition, isA, toList, toList, toSqlString, toSqlString, toSqlString, toString, unparseWithParentheses, validateExpr

从类继承的方法 java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

构造器详细资料

SqlAlterTableDropColumn

public SqlAlterTableDropColumn(org.apache.calcite.sql.parser.SqlParserPos pos,
                               org.apache.calcite.sql.SqlIdentifier tableName,
                               org.apache.calcite.sql.SqlNodeList columnList,
                               boolean ifTableExists)

方法详细资料

getOperandList

public List<org.apache.calcite.sql.SqlNode> getOperandList()

指定者:

getOperandList 在类中 org.apache.calcite.sql.SqlCall

getColumnList

public org.apache.calcite.sql.SqlNodeList getColumnList()

unparse

public void unparse(org.apache.calcite.sql.SqlWriter writer,
                    int leftPrec,
                    int rightPrec)

覆盖:

unparse 在类中 SqlAlterTable