Examples with SqlAlterTableReset org.apache.flink.sql.parser.ddl.SqlAlterTableReset used on opensource projects

Example 1 with SqlAlterTableReset

use of org.apache.flink.sql.parser.ddl.SqlAlterTableReset in project flink by apache.

the class SqlToOperationConverter method convertAlterTable.

/**
 * convert ALTER TABLE statement.
 */
private Operation convertAlterTable(SqlAlterTable sqlAlterTable) {
    UnresolvedIdentifier unresolvedIdentifier = UnresolvedIdentifier.of(sqlAlterTable.fullTableName());
    ObjectIdentifier tableIdentifier = catalogManager.qualifyIdentifier(unresolvedIdentifier);
    Optional<ContextResolvedTable> optionalCatalogTable = catalogManager.getTable(tableIdentifier);
    if (!optionalCatalogTable.isPresent() || optionalCatalogTable.get().isTemporary()) {
        throw new ValidationException(String.format("Table %s doesn't exist or is a temporary table.", tableIdentifier));
    }
    CatalogBaseTable baseTable = optionalCatalogTable.get().getTable();
    if (baseTable instanceof CatalogView) {
        throw new ValidationException("ALTER TABLE for a view is not allowed");
    }
    if (sqlAlterTable instanceof SqlAlterTableRename) {
        UnresolvedIdentifier newUnresolvedIdentifier = UnresolvedIdentifier.of(((SqlAlterTableRename) sqlAlterTable).fullNewTableName());
        ObjectIdentifier newTableIdentifier = catalogManager.qualifyIdentifier(newUnresolvedIdentifier);
        return new AlterTableRenameOperation(tableIdentifier, newTableIdentifier);
    } else if (sqlAlterTable instanceof SqlAlterTableOptions) {
        return convertAlterTableOptions(tableIdentifier, (CatalogTable) baseTable, (SqlAlterTableOptions) sqlAlterTable);
    } else if (sqlAlterTable instanceof SqlAlterTableReset) {
        return convertAlterTableReset(tableIdentifier, (CatalogTable) baseTable, (SqlAlterTableReset) sqlAlterTable);
    } else if (sqlAlterTable instanceof SqlAlterTableAddConstraint) {
        SqlTableConstraint constraint = ((SqlAlterTableAddConstraint) sqlAlterTable).getConstraint();
        validateTableConstraint(constraint);
        TableSchema oriSchema = TableSchema.fromResolvedSchema(baseTable.getUnresolvedSchema().resolve(catalogManager.getSchemaResolver()));
        // Sanity check for constraint.
        TableSchema.Builder builder = TableSchemaUtils.builderWithGivenSchema(oriSchema);
        if (constraint.getConstraintName().isPresent()) {
            builder.primaryKey(constraint.getConstraintName().get(), constraint.getColumnNames());
        } else {
            builder.primaryKey(constraint.getColumnNames());
        }
        builder.build();
        return new AlterTableAddConstraintOperation(tableIdentifier, constraint.getConstraintName().orElse(null), constraint.getColumnNames());
    } else if (sqlAlterTable instanceof SqlAlterTableDropConstraint) {
        SqlAlterTableDropConstraint dropConstraint = ((SqlAlterTableDropConstraint) sqlAlterTable);
        String constraintName = dropConstraint.getConstraintName().getSimple();
        TableSchema oriSchema = TableSchema.fromResolvedSchema(baseTable.getUnresolvedSchema().resolve(catalogManager.getSchemaResolver()));
        if (!oriSchema.getPrimaryKey().filter(pk -> pk.getName().equals(constraintName)).isPresent()) {
            throw new ValidationException(String.format("CONSTRAINT [%s] does not exist", constraintName));
        }
        return new AlterTableDropConstraintOperation(tableIdentifier, constraintName);
    } else if (sqlAlterTable instanceof SqlAddReplaceColumns) {
        return OperationConverterUtils.convertAddReplaceColumns(tableIdentifier, (SqlAddReplaceColumns) sqlAlterTable, (CatalogTable) baseTable, flinkPlanner.getOrCreateSqlValidator());
    } else if (sqlAlterTable instanceof SqlChangeColumn) {
        return OperationConverterUtils.convertChangeColumn(tableIdentifier, (SqlChangeColumn) sqlAlterTable, (CatalogTable) baseTable, flinkPlanner.getOrCreateSqlValidator());
    } else if (sqlAlterTable instanceof SqlAddPartitions) {
        List<CatalogPartitionSpec> specs = new ArrayList<>();
        List<CatalogPartition> partitions = new ArrayList<>();
        SqlAddPartitions addPartitions = (SqlAddPartitions) sqlAlterTable;
        for (int i = 0; i < addPartitions.getPartSpecs().size(); i++) {
            specs.add(new CatalogPartitionSpec(addPartitions.getPartitionKVs(i)));
            Map<String, String> props = OperationConverterUtils.extractProperties(addPartitions.getPartProps().get(i));
            partitions.add(new CatalogPartitionImpl(props, null));
        }
        return new AddPartitionsOperation(tableIdentifier, addPartitions.ifNotExists(), specs, partitions);
    } else if (sqlAlterTable instanceof SqlDropPartitions) {
        SqlDropPartitions dropPartitions = (SqlDropPartitions) sqlAlterTable;
        List<CatalogPartitionSpec> specs = new ArrayList<>();
        for (int i = 0; i < dropPartitions.getPartSpecs().size(); i++) {
            specs.add(new CatalogPartitionSpec(dropPartitions.getPartitionKVs(i)));
        }
        return new DropPartitionsOperation(tableIdentifier, dropPartitions.ifExists(), specs);
    } else if (sqlAlterTable instanceof SqlAlterTableCompact) {
        return convertAlterTableCompact(tableIdentifier, optionalCatalogTable.get(), (SqlAlterTableCompact) sqlAlterTable);
    } else {
        throw new ValidationException(String.format("[%s] needs to implement", sqlAlterTable.toSqlString(CalciteSqlDialect.DEFAULT)));
    }
}