Examples with QualifiedTablePrefix io.trino.metadata.QualifiedTablePrefix used on opensource projects

Example 6 with QualifiedTablePrefix

use of io.trino.metadata.QualifiedTablePrefix in project trino by trinodb.

the class InformationSchemaMetadata method calculatePrefixesWithTableName.

private Set<QualifiedTablePrefix> calculatePrefixesWithTableName(InformationSchemaTable informationSchemaTable, ConnectorSession connectorSession, Set<QualifiedTablePrefix> prefixes, TupleDomain<ColumnHandle> constraint, Optional<Predicate<Map<ColumnHandle, NullableValue>>> predicate) {
    Session session = ((FullConnectorSession) connectorSession).getSession();
    Optional<Set<String>> tables = filterString(constraint, TABLE_NAME_COLUMN_HANDLE);
    if (tables.isPresent()) {
        return prefixes.stream().peek(prefix -> verify(prefix.asQualifiedObjectName().isEmpty())).flatMap(prefix -> prefix.getSchemaName().map(schemaName -> Stream.of(prefix)).orElseGet(() -> listSchemaNames(session))).flatMap(prefix -> tables.get().stream().filter(this::isLowerCase).map(table -> new QualifiedObjectName(catalogName, prefix.getSchemaName().get(), table))).filter(objectName -> {
            if (!isColumnsEnumeratingTable(informationSchemaTable) || metadata.isMaterializedView(session, objectName) || metadata.isView(session, objectName)) {
                return true;
            }
            // This is a columns enumerating table and the object is not a view
            try {
                // filtering in case the source table does not exist or there is a problem with redirection.
                return metadata.getRedirectionAwareTableHandle(session, objectName).getTableHandle().isPresent();
            } catch (TrinoException e) {
                if (e.getErrorCode().equals(TABLE_REDIRECTION_ERROR.toErrorCode())) {
                    // Ignore redirection errors for listing, treat as if the table does not exist
                    return false;
                }
                throw e;
            }
        }).filter(objectName -> predicate.isEmpty() || predicate.get().test(asFixedValues(objectName))).map(QualifiedObjectName::asQualifiedTablePrefix).collect(toImmutableSet());
    }
    if (predicate.isEmpty() || !isColumnsEnumeratingTable(informationSchemaTable)) {
        return prefixes;
    }
    return prefixes.stream().flatMap(prefix -> Stream.concat(metadata.listTables(session, prefix).stream(), metadata.listViews(session, prefix).stream())).filter(objectName -> predicate.get().test(asFixedValues(objectName))).map(QualifiedObjectName::asQualifiedTablePrefix).collect(toImmutableSet());
}

Example 7 with QualifiedTablePrefix

use of io.trino.metadata.QualifiedTablePrefix in project trino by trinodb.

the class MaterializedViewSystemTable method cursor.

@Override
public RecordCursor cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession connectorSession, TupleDomain<Integer> constraint) {
    Session session = ((FullConnectorSession) connectorSession).getSession();
    InMemoryRecordSet.Builder displayTable = InMemoryRecordSet.builder(getTableMetadata());
    Optional<String> catalogFilter = tryGetSingleVarcharValue(constraint, 0);
    Optional<String> schemaFilter = tryGetSingleVarcharValue(constraint, 1);
    Optional<String> tableFilter = tryGetSingleVarcharValue(constraint, 2);
    listCatalogs(session, metadata, accessControl, catalogFilter).keySet().forEach(catalogName -> {
        QualifiedTablePrefix tablePrefix = tablePrefix(catalogName, schemaFilter, tableFilter);
        getMaterializedViews(session, metadata, accessControl, tablePrefix).forEach((tableName, definition) -> {
            QualifiedObjectName name = new QualifiedObjectName(tablePrefix.getCatalogName(), tableName.getSchemaName(), tableName.getTableName());
            MaterializedViewFreshness freshness;
            try {
                freshness = metadata.getMaterializedViewFreshness(session, name);
            } catch (MaterializedViewNotFoundException e) {
                // Ignore materialized view that was dropped during query execution (race condition)
                return;
            }
            Object[] materializedViewRow = createMaterializedViewRow(name, freshness, definition);
            displayTable.addRow(materializedViewRow);
        });
    });
    return displayTable.build().cursor();
}

Example 8 with QualifiedTablePrefix

use of io.trino.metadata.QualifiedTablePrefix in project trino by trinodb.

the class ColumnJdbcTable method cursor.

@Override
public RecordCursor cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession connectorSession, TupleDomain<Integer> constraint) {
    Builder table = InMemoryRecordSet.builder(METADATA);
    if (constraint.isNone()) {
        return table.build().cursor();
    }
    Session session = ((FullConnectorSession) connectorSession).getSession();
    boolean omitDateTimeTypePrecision = isOmitDateTimeTypePrecision(session);
    Optional<String> catalogFilter = tryGetSingleVarcharValue(constraint, 0);
    Optional<String> schemaFilter = tryGetSingleVarcharValue(constraint, 1);
    Optional<String> tableFilter = tryGetSingleVarcharValue(constraint, 2);
    Domain catalogDomain = constraint.getDomains().get().getOrDefault(0, Domain.all(createUnboundedVarcharType()));
    Domain schemaDomain = constraint.getDomains().get().getOrDefault(1, Domain.all(createUnboundedVarcharType()));
    Domain tableDomain = constraint.getDomains().get().getOrDefault(2, Domain.all(createUnboundedVarcharType()));
    if (isNonLowercase(schemaFilter) || isNonLowercase(tableFilter)) {
        // Non-lowercase predicate will never match a lowercase name (until TODO https://github.com/trinodb/trino/issues/17)
        return table.build().cursor();
    }
    for (String catalog : listCatalogs(session, metadata, accessControl, catalogFilter).keySet()) {
        if (!catalogDomain.includesNullableValue(utf8Slice(catalog))) {
            continue;
        }
        if ((schemaDomain.isAll() && tableDomain.isAll()) || schemaFilter.isPresent()) {
            QualifiedTablePrefix tablePrefix = tablePrefix(catalog, schemaFilter, tableFilter);
            Map<SchemaTableName, List<ColumnMetadata>> tableColumns = listTableColumns(session, metadata, accessControl, tablePrefix);
            addColumnsRow(table, catalog, tableColumns, omitDateTimeTypePrecision);
        } else {
            Collection<String> schemas = listSchemas(session, metadata, accessControl, catalog, schemaFilter);
            for (String schema : schemas) {
                if (!schemaDomain.includesNullableValue(utf8Slice(schema))) {
                    continue;
                }
                QualifiedTablePrefix tablePrefix = tableFilter.isPresent() ? new QualifiedTablePrefix(catalog, schema, tableFilter.get()) : new QualifiedTablePrefix(catalog, schema);
                Set<SchemaTableName> tables = listTables(session, metadata, accessControl, tablePrefix);
                for (SchemaTableName schemaTableName : tables) {
                    String tableName = schemaTableName.getTableName();
                    if (!tableDomain.includesNullableValue(utf8Slice(tableName))) {
                        continue;
                    }
                    Map<SchemaTableName, List<ColumnMetadata>> tableColumns = listTableColumns(session, metadata, accessControl, new QualifiedTablePrefix(catalog, schema, tableName));
                    addColumnsRow(table, catalog, tableColumns, omitDateTimeTypePrecision);
                }
            }
        }
    }
    return table.build().cursor();
}

Example 9 with QualifiedTablePrefix

use of io.trino.metadata.QualifiedTablePrefix in project trino by trinodb.

the class TableJdbcTable method cursor.

@Override
public RecordCursor cursor(ConnectorTransactionHandle transactionHandle, ConnectorSession connectorSession, TupleDomain<Integer> constraint) {
    Session session = ((FullConnectorSession) connectorSession).getSession();
    Optional<String> catalogFilter = tryGetSingleVarcharValue(constraint, 0);
    Optional<String> schemaFilter = tryGetSingleVarcharValue(constraint, 1);
    Optional<String> tableFilter = tryGetSingleVarcharValue(constraint, 2);
    Optional<String> typeFilter = tryGetSingleVarcharValue(constraint, 3);
    boolean includeTables = emptyOrEquals(typeFilter, "TABLE");
    boolean includeViews = emptyOrEquals(typeFilter, "VIEW");
    Builder table = InMemoryRecordSet.builder(METADATA);
    if (!includeTables && !includeViews) {
        return table.build().cursor();
    }
    if (isNonLowercase(schemaFilter) || isNonLowercase(tableFilter)) {
        // Non-lowercase predicate will never match a lowercase name (until TODO https://github.com/trinodb/trino/issues/17)
        return table.build().cursor();
    }
    for (String catalog : listCatalogs(session, metadata, accessControl, catalogFilter).keySet()) {
        QualifiedTablePrefix prefix = tablePrefix(catalog, schemaFilter, tableFilter);
        Set<SchemaTableName> views = listViews(session, metadata, accessControl, prefix);
        for (SchemaTableName name : listTables(session, metadata, accessControl, prefix)) {
            boolean isView = views.contains(name);
            if ((includeTables && !isView) || (includeViews && isView)) {
                table.addRow(tableRow(catalog, name, isView ? "VIEW" : "TABLE"));
            }
        }
    }
    return table.build().cursor();
}