Package org.apache.flink.sql.parser.ddl

Class SqlAlterTableAdd

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.SqlAlterTableSchema

org.apache.flink.sql.parser.ddl.SqlAlterTableAdd

All Implemented Interfaces:

Cloneable, ExtendedSqlNode

public class SqlAlterTableAdd
extends SqlAlterTableSchema

SqlNode to describe ALTER TABLE [IF EXISTS] table_name ADD column/constraint/watermark clause.

Example: DDL like the below for add column/constraint/watermark.

 -- add single column
 ALTER TABLE mytable ADD new_column STRING COMMENT 'new_column docs';

 -- add multiple columns, constraint, and watermark
 ALTER TABLE mytable ADD (
     log_ts STRING COMMENT 'log timestamp string' FIRST,
     ts AS TO_TIMESTAMP(log_ts) AFTER log_ts,
     col_meta int metadata from 'mk1' virtual AFTER col_b,
     PRIMARY KEY (id) NOT ENFORCED,
     WATERMARK FOR ts AS ts - INTERVAL '3' SECOND
 );
 

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.flink.sql.parser.ddl.SqlAlterTable

SqlAlterTable.AlterTableContext

Field Summary

Fields inherited from class org.apache.flink.sql.parser.ddl.SqlAlterTableSchema

columnList, constraints, distribution, watermark

Fields inherited from class org.apache.flink.sql.parser.ddl.SqlAlterTable

ifTableExists, OPERATOR, partitionSpec, tableIdentifier

Fields inherited from class org.apache.calcite.sql.SqlNode

EMPTY_ARRAY, pos

Constructor Summary

Constructors

Constructor	Description
SqlAlterTableAdd(org.apache.calcite.sql.parser.SqlParserPos pos, org.apache.calcite.sql.SqlIdentifier tableName, org.apache.calcite.sql.SqlNodeList addedColumns, List<SqlTableConstraint> constraint, SqlWatermark sqlWatermark, SqlDistribution distribution, boolean ifTableExists)

Method Summary

Modifier and Type	Method	Description
void	unparse(org.apache.calcite.sql.SqlWriter writer, int leftPrec, int rightPrec)

Methods inherited from class org.apache.flink.sql.parser.ddl.SqlAlterTableSchema

getColumnPositions, getConstraints, getDistribution, getFullConstraint, getOperandList, getWatermark, validate

Methods inherited from class org.apache.flink.sql.parser.ddl.SqlAlterTable

fullTableName, getOperator, getPartitionKVs, getPartitionSpec, getTableName, ifTableExists

Methods inherited from class org.apache.calcite.sql.SqlCall

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

Methods inherited from class org.apache.calcite.sql.SqlNode

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

Methods inherited from class java.lang.Object

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

Constructor Details

SqlAlterTableAdd

public SqlAlterTableAdd(org.apache.calcite.sql.parser.SqlParserPos pos,
 org.apache.calcite.sql.SqlIdentifier tableName,
 org.apache.calcite.sql.SqlNodeList addedColumns,
 List<SqlTableConstraint> constraint,
 @Nullable
 SqlWatermark sqlWatermark,
 @Nullable
 SqlDistribution distribution,
 boolean ifTableExists)

Method Details

unparse

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

Overrides:

unparse in class SqlAlterTable