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

Example 1 with SqlTableLike

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

the class SqlCreateTableConverter method createCatalogTable.

private CatalogTable createCatalogTable(SqlCreateTable sqlCreateTable) {
    final TableSchema sourceTableSchema;
    final List<String> sourcePartitionKeys;
    final List<SqlTableLike.SqlTableLikeOption> likeOptions;
    final Map<String, String> sourceProperties;
    if (sqlCreateTable.getTableLike().isPresent()) {
        SqlTableLike sqlTableLike = sqlCreateTable.getTableLike().get();
        CatalogTable table = lookupLikeSourceTable(sqlTableLike);
        sourceTableSchema = TableSchema.fromResolvedSchema(table.getUnresolvedSchema().resolve(catalogManager.getSchemaResolver()));
        sourcePartitionKeys = table.getPartitionKeys();
        likeOptions = sqlTableLike.getOptions();
        sourceProperties = table.getOptions();
    } else {
        sourceTableSchema = TableSchema.builder().build();
        sourcePartitionKeys = Collections.emptyList();
        likeOptions = Collections.emptyList();
        sourceProperties = Collections.emptyMap();
    }
    Map<SqlTableLike.FeatureOption, SqlTableLike.MergingStrategy> mergingStrategies = mergeTableLikeUtil.computeMergingStrategies(likeOptions);
    Map<String, String> mergedOptions = mergeOptions(sqlCreateTable, sourceProperties, mergingStrategies);
    Optional<SqlTableConstraint> primaryKey = sqlCreateTable.getFullConstraints().stream().filter(SqlTableConstraint::isPrimaryKey).findAny();
    TableSchema mergedSchema = mergeTableLikeUtil.mergeTables(mergingStrategies, sourceTableSchema, sqlCreateTable.getColumnList().getList(), sqlCreateTable.getWatermark().map(Collections::singletonList).orElseGet(Collections::emptyList), primaryKey.orElse(null));
    List<String> partitionKeys = mergePartitions(sourcePartitionKeys, sqlCreateTable.getPartitionKeyList(), mergingStrategies);
    verifyPartitioningColumnsExist(mergedSchema, partitionKeys);
    String tableComment = sqlCreateTable.getComment().map(comment -> comment.getNlsString().getValue()).orElse(null);
    return new CatalogTableImpl(mergedSchema, partitionKeys, mergedOptions, tableComment);
}