org.apache.shardingsphere.sql.parser.postgresql.visitor.impl

类 PostgreSQLDDLVisitor

java.lang.Object

org.antlr.v4.runtime.tree.AbstractParseTreeVisitor<T>

org.apache.shardingsphere.sql.parser.autogen.PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

org.apache.shardingsphere.sql.parser.postgresql.visitor.PostgreSQLVisitor

org.apache.shardingsphere.sql.parser.postgresql.visitor.impl.PostgreSQLDDLVisitor

所有已实现的接口:

org.antlr.v4.runtime.tree.ParseTreeVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>, org.apache.shardingsphere.sql.parser.api.visitor.statement.DDLVisitor, PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

public final class PostgreSQLDDLVisitor
extends PostgreSQLVisitor
implements org.apache.shardingsphere.sql.parser.api.visitor.statement.DDLVisitor

DDL visitor for PostgreSQL.

构造器概要

构造器

构造器和说明
PostgreSQLDDLVisitor()

方法概要

限定符和类型	方法和说明
org.apache.shardingsphere.sql.parser.api.ASTNode	visitAddColumnSpecification(PostgreSQLStatementParser.AddColumnSpecificationContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.addColumnSpecification().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitAlterDefinitionClause(PostgreSQLStatementParser.AlterDefinitionClauseContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.alterDefinitionClause().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitAlterIndex(PostgreSQLStatementParser.AlterIndexContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.alterIndex().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitAlterTable(PostgreSQLStatementParser.AlterTableContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.alterTable().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitColumnDefinition(PostgreSQLStatementParser.ColumnDefinitionContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.columnDefinition().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitCreateDefinitionClause(PostgreSQLStatementParser.CreateDefinitionClauseContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.createDefinitionClause().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitCreateIndex(PostgreSQLStatementParser.CreateIndexContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.createIndex().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitCreateTable(PostgreSQLStatementParser.CreateTableContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.createTable().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitDropColumnSpecification(PostgreSQLStatementParser.DropColumnSpecificationContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.dropColumnSpecification().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitDropIndex(PostgreSQLStatementParser.DropIndexContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.dropIndex().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitDropTable(PostgreSQLStatementParser.DropTableContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.dropTable().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitIndexNames(PostgreSQLStatementParser.IndexNamesContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.indexNames().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitModifyColumnSpecification(PostgreSQLStatementParser.ModifyColumnSpecificationContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.modifyColumnSpecification().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitRenameColumnSpecification(PostgreSQLStatementParser.RenameColumnSpecificationContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.renameColumnSpecification().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitTableConstraint(PostgreSQLStatementParser.TableConstraintContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.tableConstraint().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitTableNameClause(PostgreSQLStatementParser.TableNameClauseContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.tableNameClause().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitTableNamesClause(PostgreSQLStatementParser.TableNamesClauseContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.tableNamesClause().
org.apache.shardingsphere.sql.parser.api.ASTNode	visitTruncateTable(PostgreSQLStatementParser.TruncateTableContext ctx) Visit a parse tree produced by PostgreSQLStatementParser.truncateTable().

从类继承的方法 org.apache.shardingsphere.sql.parser.postgresql.visitor.PostgreSQLVisitor

visitAggregationFunction, visitBitExpr, visitBitValueLiterals, visitBooleanLiterals, visitBooleanPrimary, visitCaseExpression, visitCastFunction, visitCharFunction, visitColumnName, visitColumnNames, visitDataType, visitDataTypeLength, visitDataTypeName, visitExpr, visitFunctionCall, visitHexadecimalLiterals, visitIdentifier, visitIndexName, visitLiterals, visitNullValueLiterals, visitNumberLiterals, visitOrderByClause, visitOrderByItem, visitParameterMarker, visitPredicate, visitRegularFunction, visitSchemaName, visitSimpleExpr, visitSpecialFunction, visitStringLiterals, visitTableName, visitTableNames, visitUnreservedWord, visitWindowFunction

从类继承的方法 org.apache.shardingsphere.sql.parser.autogen.PostgreSQLStatementBaseVisitor

visitAction, visitAddConstraintSpecification, visitAggregationFunctionName, visitAlias, visitAlterColumnSetOption, visitAlterIndexDefinitionClause_, visitAlterIndexDependsOnExtension, visitAlterIndexSetTableSpace, visitAlterRole, visitAlterTableAction, visitAlterTableActions, visitAlterUser, visitAssignment, visitAssignmentValue, visitAssignmentValues, visitAsteriskClause_, visitAttributeOption, visitAttributeOptions, visitBeginTransaction, visitCall, visitCaseElse_, visitCaseWhen_, visitCharacterSet_, visitCheckOption, visitCollateClause_, visitCollationName, visitColumnConstraint, visitColumnConstraintOption, visitColumnExistClause_, visitCommit, visitComparisonOperator, visitConcurrentlyClause_, visitConfigurationParameterClause, visitConstraintClause, visitConstraintOptionalParam, visitCreateDefinition, visitCreateIndexSpecification_, visitCreateRole, visitCreateTableSpecification_, visitCreateUser, visitDefaultExpr, visitDelete, visitDeleteSpecification_, visitDistinct, visitDropRole, visitDropUser, visitDuplicateSpecification, visitExecute, visitFilterClause_, visitFrameBetween_, visitFrameClause_, visitFrameEnd_, visitFrameStart_, visitFromClause, visitGrant, visitGroupByClause, visitHavingClause, visitIgnoredIdentifier_, visitIgnoredIdentifiers_, visitIndexExistClause_, visitIndexNotExistClause_, visitIndexParameters, visitInheritClause_, visitInsert, visitInsertSelectClause, visitInsertValuesClause, visitJoinedTable, visitJoinSpecification, visitLikeOption, visitLimitClause, visitLimitOffset, visitLimitOffsetSyntax, visitLimitRowCount, visitLimitRowCountSyntax, visitLiteralsType_, visitLogicalOperator, visitModifyColumn, visitMultipleTableNames, visitMultipleTablesClause, visitName, visitNotOperator_, visitOnlyClause_, visitOnObjectClause, visitOptionForClause_, visitOwner, visitPratitionClause_, visitPrimaryKey, visitPrivilegeClause, visitPrivileges_, visitPrivilegeType_, visitProjection, visitProjections, visitQualifiedShorthand, visitRegularFunctionName_, visitRenameConstraint, visitRenameIndexSpecification, visitRenameTableSpecification_, visitResetParameter, visitRevoke, visitRoleClause_, visitRollback, visitRuntimeScope_, visitSavepoint, visitSelect, visitSelectClause, visitSequenceOption, visitSequenceOptions, visitSet, visitSetAssignmentsClause, visitSetTransaction, visitShow, visitSingleTableClause, visitStorageParameter, visitStorageParameterWithValue, visitSubquery, visitTableConstraintOption, visitTableConstraintUsingIndex, visitTableExistClause_, visitTableFactor, visitTableNotExistClause_, visitTableReference, visitTableReferences, visitTimeZoneClause_, visitUescape_, visitUnicodeEscapes_, visitUnionClause, visitUnqualifiedShorthand, visitUpdate, visitUpdateSpecification_, visitWhereClause, visitWindowDefinition_

从类继承的方法 org.antlr.v4.runtime.tree.AbstractParseTreeVisitor

aggregateResult, defaultResult, shouldVisitNextChild, visit, visitChildren, visitErrorNode, visitTerminal

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.antlr.v4.runtime.tree.ParseTreeVisitor

visit, visitChildren, visitErrorNode, visitTerminal

构造器详细资料

PostgreSQLDDLVisitor

public PostgreSQLDDLVisitor()

方法详细资料

visitCreateTable

public org.apache.shardingsphere.sql.parser.api.ASTNode visitCreateTable(PostgreSQLStatementParser.CreateTableContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.createTable().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitCreateTable 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitCreateTable 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitCreateDefinitionClause

public org.apache.shardingsphere.sql.parser.api.ASTNode visitCreateDefinitionClause(PostgreSQLStatementParser.CreateDefinitionClauseContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.createDefinitionClause().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitCreateDefinitionClause 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitCreateDefinitionClause 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitAlterTable

public org.apache.shardingsphere.sql.parser.api.ASTNode visitAlterTable(PostgreSQLStatementParser.AlterTableContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.alterTable().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitAlterTable 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitAlterTable 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitAlterDefinitionClause

public org.apache.shardingsphere.sql.parser.api.ASTNode visitAlterDefinitionClause(PostgreSQLStatementParser.AlterDefinitionClauseContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.alterDefinitionClause().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitAlterDefinitionClause 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitAlterDefinitionClause 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitAddColumnSpecification

public org.apache.shardingsphere.sql.parser.api.ASTNode visitAddColumnSpecification(PostgreSQLStatementParser.AddColumnSpecificationContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.addColumnSpecification().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitAddColumnSpecification 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitAddColumnSpecification 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitColumnDefinition

public org.apache.shardingsphere.sql.parser.api.ASTNode visitColumnDefinition(PostgreSQLStatementParser.ColumnDefinitionContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.columnDefinition().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitColumnDefinition 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitColumnDefinition 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitTableConstraint

public org.apache.shardingsphere.sql.parser.api.ASTNode visitTableConstraint(PostgreSQLStatementParser.TableConstraintContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.tableConstraint().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitTableConstraint 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitTableConstraint 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitModifyColumnSpecification

public org.apache.shardingsphere.sql.parser.api.ASTNode visitModifyColumnSpecification(PostgreSQLStatementParser.ModifyColumnSpecificationContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.modifyColumnSpecification().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitModifyColumnSpecification 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitModifyColumnSpecification 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitDropColumnSpecification

public org.apache.shardingsphere.sql.parser.api.ASTNode visitDropColumnSpecification(PostgreSQLStatementParser.DropColumnSpecificationContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.dropColumnSpecification().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitDropColumnSpecification 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitDropColumnSpecification 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitRenameColumnSpecification

public org.apache.shardingsphere.sql.parser.api.ASTNode visitRenameColumnSpecification(PostgreSQLStatementParser.RenameColumnSpecificationContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.renameColumnSpecification().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitRenameColumnSpecification 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitRenameColumnSpecification 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitDropTable

public org.apache.shardingsphere.sql.parser.api.ASTNode visitDropTable(PostgreSQLStatementParser.DropTableContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.dropTable().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitDropTable 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitDropTable 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitTruncateTable

public org.apache.shardingsphere.sql.parser.api.ASTNode visitTruncateTable(PostgreSQLStatementParser.TruncateTableContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.truncateTable().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitTruncateTable 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitTruncateTable 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitCreateIndex

public org.apache.shardingsphere.sql.parser.api.ASTNode visitCreateIndex(PostgreSQLStatementParser.CreateIndexContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.createIndex().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitCreateIndex 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitCreateIndex 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitAlterIndex

public org.apache.shardingsphere.sql.parser.api.ASTNode visitAlterIndex(PostgreSQLStatementParser.AlterIndexContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.alterIndex().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitAlterIndex 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitAlterIndex 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitDropIndex

public org.apache.shardingsphere.sql.parser.api.ASTNode visitDropIndex(PostgreSQLStatementParser.DropIndexContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.dropIndex().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitDropIndex 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitDropIndex 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitIndexNames

public org.apache.shardingsphere.sql.parser.api.ASTNode visitIndexNames(PostgreSQLStatementParser.IndexNamesContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.indexNames().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitIndexNames 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitIndexNames 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitTableNameClause

public org.apache.shardingsphere.sql.parser.api.ASTNode visitTableNameClause(PostgreSQLStatementParser.TableNameClauseContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.tableNameClause().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitTableNameClause 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitTableNameClause 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result

visitTableNamesClause

public org.apache.shardingsphere.sql.parser.api.ASTNode visitTableNamesClause(PostgreSQLStatementParser.TableNamesClauseContext ctx)

从类复制的说明: PostgreSQLStatementBaseVisitor

Visit a parse tree produced by PostgreSQLStatementParser.tableNamesClause().

The default implementation returns the result of calling AbstractParseTreeVisitor.visitChildren(org.antlr.v4.runtime.tree.RuleNode) on ctx.

指定者:

visitTableNamesClause 在接口中 PostgreSQLStatementVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

覆盖:

visitTableNamesClause 在类中 PostgreSQLStatementBaseVisitor<org.apache.shardingsphere.sql.parser.api.ASTNode>

参数:

ctx - the parse tree

返回:

the visitor result