Package org.pgcodekeeper.core.database.ch.parser.statement

Class ChAlterTable

java.lang.Object

org.pgcodekeeper.core.database.base.parser.statement.ParserAbstract<ChDatabase>

org.pgcodekeeper.core.database.ch.parser.statement.ChParserAbstract

org.pgcodekeeper.core.database.ch.parser.statement.ChAlterTable

public final class ChAlterTable
extends ChParserAbstract

Parser for ClickHouse ALTER TABLE statements. Handles table modifications including column additions, drops, updates, and constraint/index operations.

Constructor Summary

Constructors

Constructor	Description
ChAlterTable(CHParser.Alter_table_stmtContext ctx, ChDatabase db, ISettings settings)	Creates a parser for ClickHouse ALTER TABLE statements.

Method Summary

Modifier and Type	Method	Description
void	parseObject()	Parses the ALTER TABLE statement and processes table modifications.

Methods inherited from class org.pgcodekeeper.core.database.ch.parser.statement.ChParserAbstract

getIdentifiers

Methods inherited from class org.pgcodekeeper.core.database.base.parser.statement.ParserAbstract

getFullCtxText, getFullCtxText, getFullCtxText, getSafe, getSafe, parseArgMode, parseObject

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ChAlterTable

public ChAlterTable(CHParser.Alter_table_stmtContext ctx,
 ChDatabase db,
 ISettings settings)

Creates a parser for ClickHouse ALTER TABLE statements.

Parameters:

ctx - the ANTLR parse tree context for the ALTER TABLE statement

db - the ClickHouse database schema being processed

settings - parsing configuration settings

Method Details

parseObject

public void parseObject()

Parses the ALTER TABLE statement and processes table modifications. Handles dangerous operations like UPDATE, DROP COLUMN, and ALTER COLUMN with appropriate warnings. Processes ADD operations for constraints and indexes.

Specified by:

parseObject in class ParserAbstract<ChDatabase>