feat: share PostgreSQL table, index and view alteration actions

src/main/java/net/sf/jsqlparser/statement/StatementVisitor.java

@@ -9,6 +9,8 @@
  */
 package net.sf.jsqlparser.statement;
 
+import net.sf.jsqlparser.statement.alter.AlterRelation;
+import net.sf.jsqlparser.statement.alter.AlterTablespaceMove;
 import net.sf.jsqlparser.statement.alter.database.AlterDatabase;
 import net.sf.jsqlparser.statement.alter.schema.AlterSchema;
 import net.sf.jsqlparser.statement.oracle.OracleBlock;
@@ -672,6 +674,14 @@ default void visit(OracleNullStatement statement) {
         visit(statement, null);
     }
 
+    default <S> T visit(AlterRelation statement, S context) {
+        return null;
+    }
+
+    default void visit(AlterRelation statement) {
+        visit(statement, null);
+    }
+
     default <S> T visit(AlterDatabase statement, S context) {
         return null;
     }
@@ -680,4 +690,11 @@ default void visit(AlterDatabase statement) {
         visit(statement, null);
     }
 
+    default <S> T visit(AlterTablespaceMove statement, S context) {
+        return null;
+    }
+
+    default void visit(AlterTablespaceMove statement) {
+        visit(statement, null);
+    }
 }

src/main/java/net/sf/jsqlparser/statement/alter/AlterOperation.java

@@ -12,7 +12,7 @@
 import java.util.Locale;
 
 public enum AlterOperation {
-    ADD, ALTER, DROP, DROP_PRIMARY_KEY, DROP_UNIQUE, DROP_FOREIGN_KEY, DROP_CHECK, MODIFY, CHANGE, CONVERT, COLLATE, ALGORITHM, RENAME, RENAME_TABLE, RENAME_INDEX, RENAME_KEY, RENAME_CONSTRAINT, COMMENT, COMMENT_WITH_EQUAL_SIGN, UNSPECIFIC, ADD_PARTITION, DROP_PARTITION, ATTACH_PARTITION, DETACH_PARTITION, DISCARD_PARTITION, IMPORT_PARTITION, TRUNCATE_PARTITION, COALESCE_PARTITION, REORGANIZE_PARTITION, EXCHANGE_PARTITION, ANALYZE_PARTITION, CHECK_PARTITION, OPTIMIZE_PARTITION, REBUILD_PARTITION, REPAIR_PARTITION, REMOVE_PARTITIONING, PARTITION_BY, SET_TABLE_OPTION, ENGINE, FORCE, KEY_BLOCK_SIZE, LOCK, DISCARD_TABLESPACE, IMPORT_TABLESPACE, DISABLE_KEYS, ENABLE_KEYS, ENABLE_ROW_LEVEL_SECURITY, DISABLE_ROW_LEVEL_SECURITY, FORCE_ROW_LEVEL_SECURITY, NO_FORCE_ROW_LEVEL_SECURITY, ALTER_PRIMARY_KEY;
+    ADD, ALTER, DROP, DROP_PRIMARY_KEY, DROP_UNIQUE, DROP_FOREIGN_KEY, DROP_CHECK, MODIFY, CHANGE, CONVERT, COLLATE, ALGORITHM, RENAME, RENAME_TABLE, RENAME_INDEX, RENAME_KEY, RENAME_CONSTRAINT, COMMENT, COMMENT_WITH_EQUAL_SIGN, UNSPECIFIC, ADD_PARTITION, DROP_PARTITION, ATTACH_PARTITION, DETACH_PARTITION, DISCARD_PARTITION, IMPORT_PARTITION, TRUNCATE_PARTITION, COALESCE_PARTITION, REORGANIZE_PARTITION, EXCHANGE_PARTITION, ANALYZE_PARTITION, CHECK_PARTITION, OPTIMIZE_PARTITION, REBUILD_PARTITION, REPAIR_PARTITION, REMOVE_PARTITIONING, PARTITION_BY, SET_TABLE_OPTION, ENGINE, FORCE, KEY_BLOCK_SIZE, LOCK, DISCARD_TABLESPACE, IMPORT_TABLESPACE, DISABLE_KEYS, ENABLE_KEYS, ENABLE_ROW_LEVEL_SECURITY, DISABLE_ROW_LEVEL_SECURITY, FORCE_ROW_LEVEL_SECURITY, NO_FORCE_ROW_LEVEL_SECURITY, ALTER_PRIMARY_KEY, ALTER_RELATION;
 
     public static AlterOperation from(String operation) {
         return Enum.valueOf(AlterOperation.class, operation.toUpperCase(Locale.ROOT));

src/main/java/net/sf/jsqlparser/statement/alter/AlterRelation.java

@@ -0,0 +1,84 @@
+/*-
+ * #%L
+ * JSQLParser library
+ * %%
+ * Copyright (C) 2004 - 2026 JSQLParser
+ * %%
+ * Dual licensed under GNU LGPL 2.1 or Apache License 2.0
+ * #L%
+ */
+package net.sf.jsqlparser.statement.alter;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+import net.sf.jsqlparser.expression.Expression;
+import net.sf.jsqlparser.schema.Table;
+import net.sf.jsqlparser.statement.Statement;
+import net.sf.jsqlparser.statement.StatementVisitor;
+
+/** PostgreSQL ALTER INDEX, ALTER VIEW properties and ALTER MATERIALIZED VIEW. */
+public class AlterRelation implements Statement {
+    public enum ObjectType {
+        INDEX, VIEW, MATERIALIZED_VIEW
+    }
+
+    private ObjectType objectType;
+    private Table relation;
+    private boolean ifExists;
+    private final List<RelationAlterAction> actions = new ArrayList<>();
+
+    public ObjectType getObjectType() {
+        return objectType;
+    }
+
+    public void setObjectType(ObjectType objectType) {
+        this.objectType = objectType;
+    }
+
+    public Table getRelation() {
+        return relation;
+    }
+
+    public void setRelation(Table relation) {
+        this.relation = relation;
+    }
+
+    public boolean isIfExists() {
+        return ifExists;
+    }
+
+    public void setIfExists(boolean ifExists) {
+        this.ifExists = ifExists;
+    }
+
+    public List<RelationAlterAction> getActions() {
+        return actions;
+    }
+
+    public StringBuilder appendTo(StringBuilder builder, Consumer<Expression> expressionPrinter) {
+        builder.append("ALTER ").append(objectType.name().replace('_', ' ')).append(' ');
+        if (ifExists) {
+            builder.append("IF EXISTS ");
+        }
+        builder.append(relation).append(' ');
+        for (int i = 0; i < actions.size(); i++) {
+            if (i > 0) {
+                builder.append(", ");
+            }
+            actions.get(i).appendTo(builder, expressionPrinter);
+        }
+        return builder;
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder builder = new StringBuilder();
+        return appendTo(builder, builder::append).toString();
+    }
+
+    @Override
+    public <T, S> T accept(StatementVisitor<T> visitor, S context) {
+        return visitor.visit(this, context);
+    }
+}

src/main/java/net/sf/jsqlparser/statement/alter/AlterTablespaceMove.java

@@ -0,0 +1,92 @@
+/*-
+ * #%L
+ * JSQLParser library
+ * %%
+ * Copyright (C) 2004 - 2026 JSQLParser
+ * %%
+ * Dual licensed under GNU LGPL 2.1 or Apache License 2.0
+ * #L%
+ */
+package net.sf.jsqlparser.statement.alter;
+
+import java.util.ArrayList;
+import java.util.List;
+import net.sf.jsqlparser.statement.Statement;
+import net.sf.jsqlparser.statement.StatementVisitor;
+import net.sf.jsqlparser.statement.select.PlainSelect;
+
+/** Moves all matching relations from one PostgreSQL tablespace to another. */
+public class AlterTablespaceMove implements Statement {
+    public enum ObjectType {
+        TABLE, INDEX, MATERIALIZED_VIEW
+    }
+
+    private ObjectType objectType;
+    private String sourceTablespace;
+    private String targetTablespace;
+    private List<String> owners = new ArrayList<>();
+    private boolean noWait;
+
+    public ObjectType getObjectType() {
+        return objectType;
+    }
+
+    public void setObjectType(ObjectType objectType) {
+        this.objectType = objectType;
+    }
+
+    public String getSourceTablespace() {
+        return sourceTablespace;
+    }
+
+    public void setSourceTablespace(String sourceTablespace) {
+        this.sourceTablespace = sourceTablespace;
+    }
+
+    public String getTargetTablespace() {
+        return targetTablespace;
+    }
+
+    public void setTargetTablespace(String targetTablespace) {
+        this.targetTablespace = targetTablespace;
+    }
+
+    public List<String> getOwners() {
+        return owners;
+    }
+
+    public void setOwners(List<String> owners) {
+        this.owners = owners;
+    }
+
+    public boolean isNoWait() {
+        return noWait;
+    }
+
+    public void setNoWait(boolean noWait) {
+        this.noWait = noWait;
+    }
+
+    public StringBuilder appendTo(StringBuilder builder) {
+        builder.append("ALTER ").append(objectType.name().replace('_', ' '))
+                .append(" ALL IN TABLESPACE ").append(sourceTablespace);
+        if (owners != null && !owners.isEmpty()) {
+            builder.append(" OWNED BY ").append(PlainSelect.getStringList(owners));
+        }
+        builder.append(" SET TABLESPACE ").append(targetTablespace);
+        if (noWait) {
+            builder.append(" NOWAIT");
+        }
+        return builder;
+    }
+
+    @Override
+    public String toString() {
+        return appendTo(new StringBuilder()).toString();
+    }
+
+    @Override
+    public <T, S> T accept(StatementVisitor<T> visitor, S context) {
+        return visitor.visit(this, context);
+    }
+}