Examples with NOT_NULL_COLUMN_CONSTRAINT io.prestosql.spi.connector.ConnectorCapabilities.NOT_NULL_COLUMN_CONSTRAINT used on opensource projects

Example 1 with NOT_NULL_COLUMN_CONSTRAINT

use of io.prestosql.spi.connector.ConnectorCapabilities.NOT_NULL_COLUMN_CONSTRAINT in project hetu-core by openlookeng.

the class CreateTableTask method internalExecute.

@VisibleForTesting
public ListenableFuture<?> internalExecute(CreateTable statement, Metadata metadata, AccessControl accessControl, Session session, List<Expression> parameters) {
    checkArgument(!statement.getElements().isEmpty(), "no columns for table");
    QualifiedObjectName tableName = createQualifiedObjectName(session, statement, statement.getName());
    Optional<TableHandle> tableHandle = metadata.getTableHandle(session, tableName);
    if (tableHandle.isPresent()) {
        if (!statement.isNotExists()) {
            throw new SemanticException(TABLE_ALREADY_EXISTS, statement, "Table '%s' already exists", tableName);
        }
        return immediateFuture(null);
    }
    CatalogName catalogName = metadata.getCatalogHandle(session, tableName.getCatalogName()).orElseThrow(() -> new PrestoException(NOT_FOUND, "Catalog does not exist: " + tableName.getCatalogName()));
    LinkedHashMap<String, ColumnMetadata> columns = new LinkedHashMap<>();
    Map<String, Object> inheritedProperties = ImmutableMap.of();
    boolean includingProperties = false;
    for (TableElement element : statement.getElements()) {
        if (element instanceof ColumnDefinition) {
            ColumnDefinition column = (ColumnDefinition) element;
            String name = column.getName().getValue().toLowerCase(Locale.ENGLISH);
            Type type;
            try {
                type = metadata.getType(parseTypeSignature(column.getType()));
            } catch (TypeNotFoundException e) {
                throw new SemanticException(TYPE_MISMATCH, element, "Unknown type '%s' for column '%s'", column.getType(), column.getName());
            }
            if (type.equals(UNKNOWN)) {
                throw new SemanticException(TYPE_MISMATCH, element, "Unknown type '%s' for column '%s'", column.getType(), column.getName());
            }
            if (columns.containsKey(name)) {
                throw new SemanticException(DUPLICATE_COLUMN_NAME, column, "Column name '%s' specified more than once", column.getName());
            }
            if (!column.isNullable() && !metadata.getConnectorCapabilities(session, catalogName).contains(NOT_NULL_COLUMN_CONSTRAINT)) {
                throw new SemanticException(NOT_SUPPORTED, column, "Catalog '%s' does not support non-null column for column name '%s'", catalogName.getCatalogName(), column.getName());
            }
            Map<String, Expression> sqlProperties = mapFromProperties(column.getProperties());
            Map<String, Object> columnProperties = metadata.getColumnPropertyManager().getProperties(catalogName, tableName.getCatalogName(), sqlProperties, session, metadata, parameters);
            columns.put(name, new ColumnMetadata(name, type, column.isNullable(), column.getComment().orElse(null), null, false, columnProperties));
        } else if (element instanceof LikeClause) {
            LikeClause likeClause = (LikeClause) element;
            QualifiedObjectName likeTableName = createQualifiedObjectName(session, statement, likeClause.getTableName());
            if (!metadata.getCatalogHandle(session, likeTableName.getCatalogName()).isPresent()) {
                throw new SemanticException(MISSING_CATALOG, statement, "LIKE table catalog '%s' does not exist", likeTableName.getCatalogName());
            }
            if (!tableName.getCatalogName().equals(likeTableName.getCatalogName())) {
                throw new SemanticException(NOT_SUPPORTED, statement, "LIKE table across catalogs is not supported");
            }
            TableHandle likeTable = metadata.getTableHandle(session, likeTableName).orElseThrow(() -> new SemanticException(MISSING_TABLE, statement, "LIKE table '%s' does not exist", likeTableName));
            TableMetadata likeTableMetadata = metadata.getTableMetadata(session, likeTable);
            Optional<LikeClause.PropertiesOption> propertiesOption = likeClause.getPropertiesOption();
            if (propertiesOption.isPresent() && propertiesOption.get().equals(LikeClause.PropertiesOption.INCLUDING)) {
                if (includingProperties) {
                    throw new SemanticException(NOT_SUPPORTED, statement, "Only one LIKE clause can specify INCLUDING PROPERTIES");
                }
                includingProperties = true;
                // Don't inherit location property for sql statement "create table like"
                inheritedProperties = likeTableMetadata.getMetadata().getInheritableProperties();
            }
            likeTableMetadata.getColumns().stream().filter(column -> !column.isHidden()).forEach(column -> {
                if (columns.containsKey(column.getName().toLowerCase(Locale.ENGLISH))) {
                    throw new SemanticException(DUPLICATE_COLUMN_NAME, element, "Column name '%s' specified more than once", column.getName());
                }
                columns.put(column.getName().toLowerCase(Locale.ENGLISH), column);
            });
        } else {
            throw new PrestoException(GENERIC_INTERNAL_ERROR, "Invalid TableElement: " + element.getClass().getName());
        }
    }
    accessControl.checkCanCreateTable(session.getRequiredTransactionId(), session.getIdentity(), tableName);
    Map<String, Expression> sqlProperties = mapFromProperties(statement.getProperties());
    Map<String, Object> properties = metadata.getTablePropertyManager().getProperties(catalogName, tableName.getCatalogName(), sqlProperties, session, metadata, parameters);
    Map<String, Object> finalProperties = combineProperties(sqlProperties.keySet(), properties, inheritedProperties);
    ConnectorTableMetadata tableMetadata = new ConnectorTableMetadata(toSchemaTableName(tableName), ImmutableList.copyOf(columns.values()), finalProperties, statement.getComment());
    try {
        metadata.createTable(session, tableName.getCatalogName(), tableMetadata, statement.isNotExists());
    } catch (PrestoException e) {
        // connectors are not required to handle the ignoreExisting flag
        if (!e.getErrorCode().equals(ALREADY_EXISTS.toErrorCode()) || !statement.isNotExists()) {
            throw e;
        }
    }
    return immediateFuture(null);
}