Package com.facebook.presto.sql.tree

Examples of com.facebook.presto.sql.tree.StringLiteral

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    {
        List<Partition> partitions = splitManager.getPartitions(tableHandle, Optional.<Map<ColumnHandle, Object>>of(ImmutableMap.<ColumnHandle, Object>of(dsColumnHandle, "foo")));
        assertEquals(partitions.size(), 2);

        // foo=bar. Not a prunable column
        Expression nonMatching = new ComparisonExpression(Type.EQUAL, new QualifiedNameReference(new QualifiedName("foo")), new StringLiteral("bar"));
        DataSource dataSource = splitManager.getSplits(session, tableHandle, BooleanLiteral.TRUE_LITERAL, nonMatching, Predicates.<Partition>alwaysTrue(), symbols);
        List<Split> splits = ImmutableList.copyOf(dataSource.getSplits());
        // all splits found
        assertEquals(splits.size(), 4);
    }
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            schemaName = schema.getSuffix();
        }

        // TODO: throw SemanticException if schema does not exist

        Expression predicate = equal(nameReference("table_schema"), new StringLiteral(schemaName));

        String likePattern = showTables.getLikePattern();
        if (likePattern != null) {
            Expression likePredicate = new LikePredicate(nameReference("table_name"), new StringLiteral(likePattern), null);
            predicate = logicalAnd(predicate, likePredicate);
        }

        Query query = new Query(
                Optional.<With>absent(),
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                                aliasedName("data_type", "Type"),
                                aliasedYesNoToBoolean("is_nullable", "Null"),
                                aliasedYesNoToBoolean("is_partition_key", "Partition Key")),
                        table(QualifiedName.of(tableName.getCatalogName(), TABLE_COLUMNS.getSchemaName(), TABLE_COLUMNS.getTableName())),
                        Optional.of(logicalAnd(
                                equal(nameReference("table_schema"), new StringLiteral(tableName.getSchemaName())),
                                equal(nameReference("table_name"), new StringLiteral(tableName.getTableName())))),
                        ImmutableList.<Expression>of(),
                        Optional.<Expression>absent(),
                        ImmutableList.of(ascending("ordinal_position")),
                        Optional.<String>absent()
                ),
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    }

    private static SelectItem aliasedYesNoToBoolean(String column, String alias)
    {
        Expression expression = new IfExpression(
                equal(nameReference(column), new StringLiteral("YES")),
                BooleanLiteral.TRUE_LITERAL,
                BooleanLiteral.FALSE_LITERAL);
        return new SingleColumn(expression, alias);
    }
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        selectList.add(unaliasedName("partition_number"));
        for (ColumnMetadata column : metadata.getTableMetadata(tableHandle.get()).getColumns()) {
            if (!column.isPartitionKey()) {
                continue;
            }
            Expression key = equal(nameReference("partition_key"), new StringLiteral(column.getName()));
            Expression value = caseWhen(key, nameReference("partition_value"));
            value = new Cast(value, column.getType().getName());
            Expression function = functionCall("max", value);
            selectList.add(new SingleColumn(function, column.getName()));
            wrappedList.add(unaliasedName(column.getName()));
        }

        Query query = new Query(
                Optional.<With>absent(),
                new QuerySpecification(
                        selectAll(selectList.build()),
                        table(QualifiedName.of(table.getCatalogName(), TABLE_INTERNAL_PARTITIONS.getSchemaName(), TABLE_INTERNAL_PARTITIONS.getTableName())),
                        Optional.of(logicalAnd(
                                equal(nameReference("table_schema"), new StringLiteral(table.getSchemaName())),
                                equal(nameReference("table_name"), new StringLiteral(table.getTableName())))),
                        ImmutableList.of(nameReference("partition_number")),
                        Optional.<Expression>absent(),
                        ImmutableList.<SortItem>of(),
                        Optional.<String>absent()),
                ImmutableList.<SortItem>of(),
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        Query query = new Query(
                Optional.<With>absent(),
                new QuerySpecification(
                        selectList(new AllColumns()),
                        ImmutableList.of(aliased(
                                values(row(new StringLiteral((queryPlan)))),
                                "plan",
                                ImmutableList.of("Query Plan")
                        )),
                        Optional.<Expression>absent(),
                        ImmutableList.<Expression>of(),
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        private Regex getConstantPattern(LikePredicate node)
        {
            Regex result = likePatternCache.get(node);

            if (result == null) {
                StringLiteral pattern = (StringLiteral) node.getPattern();
                StringLiteral escape = (StringLiteral) node.getEscape();

                if (escape == null) {
                    result = LikeFunctions.likePattern(pattern.getSlice());
                }
                else {
                    result = LikeFunctions.likePattern(pattern.getSlice(), escape.getSlice());
                }

                likePatternCache.put(node, result);
            }
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            schemaName = schema.getSuffix();
        }

        // TODO: throw SemanticException if schema does not exist

        Expression predicate = equal(nameReference("table_schema"), new StringLiteral(schemaName));

        String likePattern = showTables.getLikePattern();
        if (likePattern != null) {
            Expression likePredicate = new LikePredicate(nameReference("table_name"), new StringLiteral(likePattern), null);
            predicate = logicalAnd(predicate, likePredicate);
        }

        Query query = new Query(
                Optional.<With>absent(),
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                                aliasedName("data_type", "Type"),
                                aliasedYesNoToBoolean("is_nullable", "Null"),
                                aliasedYesNoToBoolean("is_partition_key", "Partition Key")),
                        table(QualifiedName.of(tableName.getCatalogName(), TABLE_COLUMNS.getSchemaName(), TABLE_COLUMNS.getTableName())),
                        Optional.of(logicalAnd(
                                equal(nameReference("table_schema"), new StringLiteral(tableName.getSchemaName())),
                                equal(nameReference("table_name"), new StringLiteral(tableName.getTableName())))),
                        ImmutableList.<Expression>of(),
                        Optional.<Expression>absent(),
                        ImmutableList.of(ascending("ordinal_position")),
                        Optional.<String>absent()
                ),
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    }

    private static SelectItem aliasedYesNoToBoolean(String column, String alias)
    {
        Expression expression = new IfExpression(
                equal(nameReference(column), new StringLiteral("YES")),
                BooleanLiteral.TRUE_LITERAL,
                BooleanLiteral.FALSE_LITERAL);
        return new SingleColumn(expression, alias);
    }
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Related Classes of com.facebook.presto.sql.tree.StringLiteral

  • com.facebook.presto.split.TestNativeSplitManager
  • com.facebook.presto.sql.analyzer.StatementAnalyzer
  • com.facebook.presto.sql.parser.TestSqlParser
  • com.facebook.presto.sql.planner.ExpressionInterpreter
  • com.facebook.presto.sql.planner.ExpressionInterpreter$Visitor
  • com.facebook.presto.sql.planner.LiteralInterpreter
  • com.facebook.presto.sql.planner.TestDomainTranslator
  • com.facebook.presto.sql.TestExpressionInterpreter
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