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

Class PgAlterTable

java.lang.Object

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

org.pgcodekeeper.core.database.pg.parser.statement.PgParserAbstract

org.pgcodekeeper.core.database.pg.parser.statement.PgTableAbstract

org.pgcodekeeper.core.database.pg.parser.statement.PgAlterTable

public final class PgAlterTable
extends PgTableAbstract

Parser for PostgreSQL ALTER TABLE statements.

This class handles parsing of table alterations including adding/dropping columns, modifying constraints, changing table properties, managing triggers and rules, setting table ownership, and handling Greenplum partition templates.

Constructor Summary

Constructors

Constructor	Description
PgAlterTable(SQLParser.Alter_table_statementContext ctx, PgDatabase db, String tablespace, org.antlr.v4.runtime.CommonTokenStream stream, ISettings settings)	Constructs a new AlterTable parser.

Method Summary

Modifier and Type	Method	Description
PgConstraint	parseAlterTableConstraint(SQLParser.Table_actionContext tableAction, PgConstraint constrBlank, String schemaName, String tableName, String location)
static void	parseGpPartitionTemplate(GpPartitionTable tabl, SQLParser.Alter_partition_gpContext alterPartition, org.antlr.v4.runtime.CommonTokenStream stream)	Parses Greenplum partition template specifications from ALTER PARTITION clause.
void	parseObject()	Parses a database object from the current context.

Methods inherited from class org.pgcodekeeper.core.database.pg.parser.statement.PgParserAbstract

fillOptionParams, fillOptionParams, getIdentifiers, getIdentifiers, getIdentifiers, getTypeName, parseArguments, parseOperatorSignature, parseSignature, unquoteQuotedString

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

PgAlterTable

public PgAlterTable(SQLParser.Alter_table_statementContext ctx,
 PgDatabase db,
 String tablespace,
 org.antlr.v4.runtime.CommonTokenStream stream,
 ISettings settings)

Constructs a new AlterTable parser.

Parameters:

ctx - the ALTER TABLE statement context

db - the PostgreSQL database object

tablespace - the default tablespace name

stream - the token stream for parsing

settings - the ISettings object

Method Details

parseObject

public void parseObject()

Description copied from class: ParserAbstract

Parses a database object from the current context. Must be implemented by concrete subclasses to handle specific object types.

Specified by:

parseObject in class ParserAbstract<PgDatabase>

parseGpPartitionTemplate

public static void parseGpPartitionTemplate(GpPartitionTable tabl,
 SQLParser.Alter_partition_gpContext alterPartition,
 org.antlr.v4.runtime.CommonTokenStream stream)

Parses Greenplum partition template specifications from ALTER PARTITION clause.

Parameters:

tabl - the Greenplum partitioned table to modify

alterPartition - the ALTER PARTITION context

stream - the token stream for parsing

parseAlterTableConstraint

public PgConstraint parseAlterTableConstraint(SQLParser.Table_actionContext tableAction,
 PgConstraint constrBlank,
 String schemaName,
 String tableName,
 String location)