Examples with AlterFunction com.facebook.presto.sql.tree.AlterFunction used on opensource projects

Example 1 with AlterFunction

use of com.facebook.presto.sql.tree.AlterFunction in project presto by prestodb.

the class AlterFunctionTask method execute.

@Override
public ListenableFuture<?> execute(AlterFunction statement, TransactionManager transactionManager, Metadata metadata, AccessControl accessControl, Session session, List<Expression> parameters, WarningCollector warningCollector) {
    Analyzer analyzer = new Analyzer(session, metadata, sqlParser, accessControl, Optional.empty(), parameters, warningCollector);
    analyzer.analyze(statement);
    QualifiedObjectName functionName = qualifyObjectName(statement.getFunctionName());
    AlterRoutineCharacteristics alterRoutineCharacteristics = new AlterRoutineCharacteristics(statement.getCharacteristics().getNullCallClause().map(com.facebook.presto.sql.tree.RoutineCharacteristics.NullCallClause::name).map(NullCallClause::valueOf));
    metadata.getFunctionAndTypeManager().alterFunction(functionName, statement.getParameterTypes().map(types -> types.stream().map(TypeSignature::parseTypeSignature).collect(toImmutableList())), alterRoutineCharacteristics);
    return immediateFuture(null);
}

Example 2 with AlterFunction

use of com.facebook.presto.sql.tree.AlterFunction in project presto by prestodb.

the class TestSqlParser method testAlterFunction.

@Test
public void testAlterFunction() {
    QualifiedName functionName = QualifiedName.of("testing", "default", "tan");
    assertStatement("ALTER FUNCTION testing.default.tan\n" + "CALLED ON NULL INPUT", new AlterFunction(functionName, Optional.empty(), new AlterRoutineCharacteristics(Optional.of(CALLED_ON_NULL_INPUT))));
    assertStatement("ALTER FUNCTION testing.default.tan(double)\n" + "RETURNS NULL ON NULL INPUT", new AlterFunction(functionName, Optional.of(ImmutableList.of("double")), new AlterRoutineCharacteristics(Optional.of(RETURNS_NULL_ON_NULL_INPUT))));
    assertInvalidStatement("ALTER FUNCTION testing.default.tan", "No alter routine characteristics specified");
    assertInvalidStatement("ALTER FUNCTION testing.default.tan\n" + "RETURNS NULL ON NULL INPUT\n" + "RETURNS NULL ON NULL INPUT", "Duplicate null-call clause: RETURNSNULLONNULLINPUT");
}