Package com.facebook.presto.sql.tree

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

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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();

                result = LikeUtils.likeToPattern(pattern.getSlice(), escape == null ? null : escape.getSlice());

                likePatternCache.put(node, result);
            }

            return result;
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    private static void assertLike(byte[] value, String pattern, boolean expected)
    {
        Expression predicate = new LikePredicate(
                rawStringLiteral(Slices.wrappedBuffer(value)),
                new StringLiteral(pattern),
                null);
        assertEquals(evaluate(predicate), expected);
    }
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        assertEquals(evaluate(predicate), expected);
    }

    private static StringLiteral rawStringLiteral(final Slice slice)
    {
        return new StringLiteral(slice.toString(UTF_8))
        {
            @Override
            public Slice getSlice()
            {
                return slice;
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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 SingleColumn(new StringLiteral(queryPlan), "Query Plan")),
                        null,
                        Optional.<Expression>absent(),
                        ImmutableList.<Expression>of(),
                        Optional.<Expression>absent(),
                        ImmutableList.<SortItem>of(),
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        private Regex getConstantPattern(LikePredicate node)
        {
            Regex result = LIKE_PATTERN_CACHE.get(node);

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

                result = LikeUtils.likeToPattern(pattern.getSlice(), escape == null ? null : escape.getSlice());

                LIKE_PATTERN_CACHE.put(node, result);
            }

            return result;
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    private static void assertLike(byte[] value, String pattern, boolean expected)
    {
        Expression predicate = new LikePredicate(
                rawStringLiteral(Slices.wrappedBuffer(value)),
                new StringLiteral(pattern),
                null);
        assertEquals(evaluate(predicate), expected);
    }
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