private SqlOperator toOp(String name, TableFunction fun) {
List<RelDataType> argTypes = new ArrayList<RelDataType>();
List<SqlTypeFamily> typeFamilies = new ArrayList<SqlTypeFamily>();
Parameter p;
for (net.hydromatic.optiq.Parameter o :
(List<net.hydromatic.optiq.Parameter>) fun.getParameters()) {
argTypes.add(o.getType());
typeFamilies.add(SqlTypeFamily.ANY);
}
return new SqlFunction(
name,
SqlKind.OTHER_FUNCTION,
new ExplicitReturnTypeInference(typeFactory.createType(fun.getElementType())),
new ExplicitOperandTypeInference(argTypes.toArray(new RelDataType[argTypes.size()])),
new FamilyOperandTypeChecker(
typeFamilies.toArray(new SqlTypeFamily[typeFamilies.size()])),
null);
}
public Object freeze(ColumnLoader.ValueSet valueSet) {
final int chunksPerWord = 64 / bitCount;
final List<Comparable> valueList = valueSet.values;
final int valueCount = valueList.size();
final int wordCount = (valueCount + (chunksPerWord - 1)) / chunksPerWord;
final int remainingChunkCount = valueCount % chunksPerWord;
final long[] longs = new long[wordCount];
final int n = valueCount / chunksPerWord;
int i;
int k = 0;
if (valueCount > 0 && valueList.get(0) instanceof Boolean) {
@SuppressWarnings("unchecked")
final List<Boolean> booleans = (List) valueSet.values;
for (i = 0; i < n; i++) {
long v = 0;
for (int j = 0; j < chunksPerWord; j++) {
v |= (booleans.get(k++) ? (1 << (bitCount * j)) : 0);
}
longs[i] = v;
}
if (remainingChunkCount > 0) {
long v = 0;
for (int j = 0; j < remainingChunkCount; j++) {
v |= (booleans.get(k++) ? (1 << (bitCount * j)) : 0);
}
longs[i] = v;
}
} else {
@SuppressWarnings("unchecked")
final List<Number> numbers = (List) valueSet.values;
for (i = 0; i < n; i++) {
long v = 0;
for (int j = 0; j < chunksPerWord; j++) {
v |= (numbers.get(k++).longValue() << (bitCount * j));
}
longs[i] = v;
}
if (remainingChunkCount > 0) {
long v = 0;
for (int j = 0; j < remainingChunkCount; j++) {
v |= (numbers.get(k++).longValue() << (bitCount * j));
}
longs[i] = v;
}
}
return longs;
}
private Collection<Function> getFunctionsFrom(List<String> names) {
final List<Function> functions2 = Lists.newArrayList();
final List<? extends List<String>> schemaNameList;
if (names.size() > 1) {
// If name is qualified, ignore path.
schemaNameList = ImmutableList.of(ImmutableList.<String>of());
} else {
OptiqSchema schema = getSchema(defaultSchema);
if (schema == null) {
schemaNameList = ImmutableList.of();
} else {
schemaNameList = schema.getPath();
}
}
for (List<String> schemaNames : schemaNameList) {
OptiqSchema schema = getSchema(Iterables.concat(schemaNames, Util.skipLast(names)));
if (schema != null) {
final String name = Util.last(names);
functions2.addAll(schema.getFunctions(name, true));
}
}
return functions2;
}
public Statistic getStatistic() {
return Statistics.of(list.size(), Collections.<BitSet>emptyList());
}
<T> PrepareResult<T> prepare_(
Context context, String sql, Queryable<T> queryable, Type elementType) {
final JavaTypeFactory typeFactory = context.getTypeFactory();
OptiqCatalogReader catalogReader = new OptiqCatalogReader(context.getRootSchema(), typeFactory);
final OptiqPreparingStmt preparingStmt =
new OptiqPreparingStmt(catalogReader, typeFactory, context.getRootSchema());
preparingStmt.setResultCallingConvention(CallingConvention.ENUMERABLE);
final RelDataType x;
final PreparedResult preparedResult;
if (sql != null) {
assert queryable == null;
SqlParser parser = new SqlParser(sql);
SqlNode sqlNode;
try {
sqlNode = parser.parseQuery();
} catch (SqlParseException e) {
throw new RuntimeException("parse failed", e);
}
final Schema rootSchema = context.getRootSchema();
SqlValidator validator =
new SqlValidatorImpl(
new ChainedSqlOperatorTable(
Arrays.<SqlOperatorTable>asList(
SqlStdOperatorTable.instance(),
new MySqlOperatorTable(rootSchema, typeFactory))),
catalogReader,
typeFactory,
SqlConformance.Default) {};
preparedResult = preparingStmt.prepareSql(sqlNode, Object.class, validator, true);
x = validator.getValidatedNodeType(sqlNode);
} else {
assert queryable != null;
x = context.getTypeFactory().createType(elementType);
preparedResult = preparingStmt.prepareQueryable(queryable, x);
}
// TODO: parameters
final List<Parameter> parameters = Collections.emptyList();
// TODO: column meta data
final List<ColumnMetaData> columns = new ArrayList<ColumnMetaData>();
RelDataType jdbcType = makeStruct(typeFactory, x);
for (RelDataTypeField field : jdbcType.getFields()) {
RelDataType type = field.getType();
SqlTypeName sqlTypeName = type.getSqlTypeName();
columns.add(
new ColumnMetaData(
columns.size(),
false,
true,
false,
false,
type.isNullable() ? 1 : 0,
true,
0,
field.getName(),
field.getName(),
null,
sqlTypeName.allowsPrec() && false ? type.getPrecision() : -1,
sqlTypeName.allowsScale() ? type.getScale() : -1,
null,
null,
sqlTypeName.getJdbcOrdinal(),
sqlTypeName.getName(),
true,
false,
false,
null));
}
return new PrepareResult<T>(sql, parameters, columns, (Enumerable<T>) preparedResult.execute());
}