public <T> T unwrap(Class<T> clazz) { if (clazz.isInstance(this)) { return clazz.cast(this); } if (clazz.isInstance(table)) { return clazz.cast(table); } if (table instanceof Wrapper) { final T t = ((Wrapper) table).unwrap(clazz); if (t != null) { return t; } } if (clazz == CalciteSchema.class) { return clazz.cast( Schemas.subSchema(((CalciteCatalogReader) schema).rootSchema, Util.skipLast(getQualifiedName()))); } return null; }
public <T> T unwrap(Class<T> clazz) { if (clazz.isInstance(this)) { return clazz.cast(this); } if (clazz.isInstance(table)) { return clazz.cast(table); } if (table instanceof Wrapper) { final T t = ((Wrapper) table).unwrap(clazz); if (t != null) { return t; } } if (clazz == CalciteSchema.class) { return clazz.cast( Schemas.subSchema(((CalciteCatalogReader) schema).rootSchema, Util.skipLast(getQualifiedName()))); } return null; }
@Override protected RelOptTable extend(Table extendedTable) { final RelDataType extendedRowType = extendedTable.getRowType(getRelOptSchema().getTypeFactory()); return new RelOptTableImpl(getRelOptSchema(), extendedRowType, getQualifiedName(), extendedTable, expressionFunction, getRowCount()); }
@Override protected RelOptTable extend(Table extendedTable) { final RelDataType extendedRowType = extendedTable.getRowType(getRelOptSchema().getTypeFactory()); return new RelOptTableImpl(getRelOptSchema(), extendedRowType, getQualifiedName(), extendedTable, expressionFunction, getRowCount()); }
private TableScan createTemporaryTableScan(RelOptTableImpl relOptTable, List<String> tableAlias, TableScan tableScan, RelNode originTable) { RelDataType type = originTable.getRowType(); RelOptTableImpl relOptTableWithAlias = relOptTable.modifyTableName(tableAlias); RelOptTable newRelOptTable = RelOptTableImpl.create( relOptTableWithAlias.getRelOptSchema(), type, relOptTableWithAlias.getTable(), ImmutableList.copyOf(relOptTableWithAlias.getQualifiedName()) ); return new TemporaryTableScan( tableScan.getCluster(), tableScan.getTraitSet(), newRelOptTable ); }