Package org.apache.phoenix.expression

Examples of org.apache.phoenix.expression.Expression

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        assertEquals(Types.INTEGER, returnValue);
    }

    @Test
    public void testEvaluateArrayType() throws SQLException {
        Expression inputArg = LiteralExpression.newConstant(
                PDataType.INTEGER_ARRAY.getSqlType(), PDataType.INTEGER);

        Object returnValue = executeFunction(inputArg);

        assertEquals(Types.ARRAY, returnValue);
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     * @param expression the new expression to add
     * @return the new expression if not already present in the set and
     * the existing one otherwise.
     */
    public Expression addIfAbsent(Expression expression) {
        Expression existingExpression = expressionMap.get(expression);
        if (existingExpression == null) {
            expressionMap.put(expression, expression);
            return expression;
        }
        return existingExpression;
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        return scale;
    }

    // TODO: don't repeat this ugly cast logic (maybe use isCastable in the last else block.
    public static Expression convertToRoundExpressionIfNeeded(PDataType fromDataType, PDataType targetDataType, List<Expression> expressions) throws SQLException {
      Expression firstChildExpr = expressions.get(0);
      if(fromDataType == targetDataType) {
          return firstChildExpr;
//        } else if((fromDataType == PDataType.DATE || fromDataType == PDataType.UNSIGNED_DATE) && targetDataType.isCoercibleTo(PDataType.LONG)) {
//            return firstChildExpr;
//        } else if(fromDataType.isCoercibleTo(PDataType.LONG) && (targetDataType == PDataType.DATE || targetDataType == PDataType.UNSIGNED_DATE)) {
//            return firstChildExpr;
      } else if((fromDataType == PDataType.DECIMAL || fromDataType == PDataType.TIMESTAMP || fromDataType == PDataType.UNSIGNED_TIMESTAMP) && targetDataType.isCoercibleTo(PDataType.LONG)) {
          return RoundDecimalExpression.create(expressions);
      } else if((fromDataType == PDataType.DECIMAL || fromDataType == PDataType.TIMESTAMP || fromDataType == PDataType.UNSIGNED_TIMESTAMP) && targetDataType.isCoercibleTo(PDataType.DATE)) {
          return RoundTimestampExpression.create(expressions);
      } else if(fromDataType.isCastableTo(targetDataType)) {
          return firstChildExpr;
        } else {
            throw TypeMismatchException.newException(fromDataType, targetDataType, firstChildExpr.toString());
      }
  }
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                new TrackOrderPreservingExpressionCompiler(context, groupBy,
                        orderByNodes.size(), Ordering.ORDERED);
        LinkedHashSet<OrderByExpression> orderByExpressions = Sets.newLinkedHashSetWithExpectedSize(orderByNodes.size());
        for (OrderByNode node : orderByNodes) {
            boolean isAscending = node.isAscending();
            Expression expression = node.getNode().accept(visitor);
            if (!expression.isStateless() && visitor.addEntry(expression, isAscending ? SortOrder.ASC : SortOrder.DESC)) {
                // Detect mix of aggregate and non aggregates (i.e. ORDER BY txns, SUM(txns)
                if (!visitor.isAggregate()) {
                    if (statement.isAggregate() || statement.isDistinct()) {
                        // Detect ORDER BY not in SELECT DISTINCT: SELECT DISTINCT count(*) FROM t ORDER BY x
                        if (statement.isDistinct()) {
                            throw new SQLExceptionInfo.Builder(SQLExceptionCode.ORDER_BY_NOT_IN_SELECT_DISTINCT)
                            .setMessage(expression.toString()).build().buildException();
                        }
                        ExpressionCompiler.throwNonAggExpressionInAggException(expression.toString());
                    }
                }
                if (expression.getSortOrder() == SortOrder.DESC) {
                    isAscending = !isAscending;
                }
                OrderByExpression orderByExpression = new OrderByExpression(expression, node.isNullsLast(), isAscending);
                orderByExpressions.add(orderByExpression);
            }
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                TupleProjector.serializeProjectorIntoScan(context.getScan(), initialProjectedTable.createTupleProjector());
            }
            context.setCurrentTable(tableRef);
            context.setResolver(needsProject ? projectedTable.createColumnResolver() : joinTable.getOriginalResolver());
            BasicQueryPlan plan = compileSingleQuery(context, query, binds, asSubquery, joinTable.isAllLeftJoin());
            Expression postJoinFilterExpression = joinTable.compilePostFilterExpression(context);
            Integer limit = null;
            if (query.getLimit() != null && !query.isAggregate() && !query.isDistinct() && query.getOrderBy().isEmpty()) {
                limit = LimitCompiler.compile(context, query);
            }
            HashJoinInfo joinInfo = new HashJoinInfo(projectedTable.getTable(), joinIds, joinExpressions, joinTypes, starJoinVector, tables, fieldPositions, postJoinFilterExpression, limit, forceProjection);
            return new HashJoinPlan(joinTable.getStatement(), plan, joinInfo, hashExpressions, joinPlans, clientProjectors);
        }
       
        JoinSpec lastJoinSpec = joinSpecs.get(joinSpecs.size() - 1);
        JoinType type = lastJoinSpec.getType();
        if (type == JoinType.Full)
            throw new SQLFeatureNotSupportedException("Full joins not supported.");
       
        if (type == JoinType.Right || type == JoinType.Inner) {
            if (!lastJoinSpec.getJoinTable().getJoinSpecs().isEmpty())
                throw new SQLFeatureNotSupportedException("Right join followed by sub-join is not supported.");
           
            JoinTable rhsJoinTable = lastJoinSpec.getJoinTable();
            Table rhsTable = rhsJoinTable.getTable();
            JoinTable lhsJoin = joinTable.getSubJoinTableWithoutPostFilters();
            Scan subScan = ScanUtil.newScan(originalScan);
            StatementContext lhsCtx = new StatementContext(statement, context.getResolver(), subScan, new SequenceManager(statement));
            QueryPlan lhsPlan = compileJoinQuery(lhsCtx, binds, lhsJoin, true);
            ColumnResolver lhsResolver = lhsCtx.getResolver();
            TupleProjector clientProjector = lhsCtx.getClientTupleProjector();
            PTableWrapper lhsProjTable = ((JoinedTableColumnResolver) (lhsResolver)).getPTableWrapper();
            ProjectedPTableWrapper rhsProjTable;
            TableRef rhsTableRef;
            SelectStatement rhs;
            if (!rhsTable.isSubselect()) {
                rhsProjTable = rhsTable.createProjectedTable(!asSubquery);
                rhsTableRef = rhsTable.getTableRef();
                rhsTable.projectColumns(context.getScan());
                rhs = rhsJoinTable.getAsSingleSubquery(rhsTable.getAsSubquery(), asSubquery);
            } else {
                SelectStatement subquery = rhsTable.getAsSubquery();
                QueryPlan plan = compileSubquery(subquery);
                rhsProjTable = rhsTable.createProjectedTable(plan.getProjector());
                rhsTableRef = plan.getTableRef();
                context.getScan().setFamilyMap(plan.getContext().getScan().getFamilyMap());
                rhs = rhsJoinTable.getAsSingleSubquery((SelectStatement) plan.getStatement(), asSubquery);
            }
            boolean forceProjection = rhsTable.isSubselect();
            ColumnResolver rhsResolver = forceProjection ? rhsProjTable.createColumnResolver() : joinTable.getOriginalResolver();
            ImmutableBytesPtr[] joinIds = new ImmutableBytesPtr[] {new ImmutableBytesPtr(emptyByteArray)};
            Pair<List<Expression>, List<Expression>> joinConditions = lastJoinSpec.compileJoinConditions(context, lhsResolver, rhsResolver);
            List<Expression> joinExpressions = joinConditions.getSecond();
            List<Expression> hashExpressions = joinConditions.getFirst();
            int fieldPosition = rhsProjTable.getTable().getColumns().size() - rhsProjTable.getTable().getPKColumns().size();
            PTableWrapper projectedTable = rhsProjTable.mergeProjectedTables(lhsProjTable, type == JoinType.Inner);
            TupleProjector.serializeProjectorIntoScan(context.getScan(), rhsProjTable.createTupleProjector());
            context.setCurrentTable(rhsTableRef);
            context.setResolver(projectedTable.createColumnResolver());
            BasicQueryPlan rhsPlan = compileSingleQuery(context, rhs, binds, asSubquery, type == JoinType.Right);
            Expression postJoinFilterExpression = joinTable.compilePostFilterExpression(context);
            Integer limit = null;
            if (rhs.getLimit() != null && !rhs.isAggregate() && !rhs.isDistinct() && rhs.getOrderBy().isEmpty()) {
                limit = LimitCompiler.compile(context, rhs);
            }
            HashJoinInfo joinInfo = new HashJoinInfo(projectedTable.getTable(), joinIds, new List[] {joinExpressions}, new JoinType[] {type == JoinType.Inner ? type : JoinType.Left}, new boolean[] {true}, new PTable[] {lhsProjTable.getTable()}, new int[] {fieldPosition}, postJoinFilterExpression, limit, forceProjection);
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        GroupBy groupBy = GroupByCompiler.compile(context, select);
        // Optimize the HAVING clause by finding any group by expressions that can be moved
        // to the WHERE clause
        select = HavingCompiler.rewrite(context, select, groupBy);
        Expression having = HavingCompiler.compile(context, select, groupBy);
        // Don't pass groupBy when building where clause expression, because we do not want to wrap these
        // expressions as group by key expressions since they're pre, not post filtered.
        context.setResolver(FromCompiler.getResolverForQuery(select, connection));
        WhereCompiler.compile(context, select, viewWhere);
        context.setResolver(resolver); // recover resolver
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        super(children);
    }

    @Override
    public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
        Expression arg = getChildren().get(0);
        if (!arg.evaluate(tuple, ptr)) {
            return false;
        }

        int targetOffset = ptr.getLength();
        if (targetOffset == 0) {
            return true;
        }

        byte[] source = ptr.get();
        byte[] target = new byte[targetOffset];
        int sourceOffset = ptr.getOffset();
        int endOffset = sourceOffset + ptr.getLength();
        SortOrder sortOrder = arg.getSortOrder();
        while (sourceOffset < endOffset) {
            int nBytes = StringUtil.getBytesInChar(source[sourceOffset], sortOrder);
            targetOffset -= nBytes;
            System.arraycopy(source, sourceOffset, target, targetOffset, nBytes);
            sourceOffset += nBytes;
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    super(children);
  }

  @Override
  public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
    Expression indexExpr = children.get(1);
    if (!indexExpr.evaluate(tuple, ptr)) {
      return false;
    } else if (ptr.getLength() == 0) {
      return true;
    }
    // Use Codec to prevent Integer object allocation
    int index = PDataType.INTEGER.getCodec().decodeInt(ptr, indexExpr.getSortOrder());
    if(index < 0) {
      throw new ParseException("Index cannot be negative :" + index);
    }
    Expression arrayExpr = children.get(0);
    return PArrayDataType.positionAtArrayElement(tuple, ptr, index, arrayExpr, getDataType(), getMaxLength());
  }
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        super(children);
    }

    @Override
    public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
        Expression numExpr = getNumExpr();
        if (!numExpr.evaluate(tuple, ptr)) {
            return false;
        }
        long num = numExpr.getDataType().getCodec().decodeLong(ptr, numExpr.getSortOrder());
       
        Expression encodingExpression = getEncodingExpr();
        if (!encodingExpression.evaluate(tuple, ptr)) {
            return false;
        }

        if (ptr.getLength() == 0) {
            throw new IllegalDataException(getMissingEncodeFormatMsg());
        }

        PDataType type = encodingExpression.getDataType();
        String encodingFormat = ((String) type.toObject(ptr)).toUpperCase();
        EncodeFormat format = EncodeFormat.valueOf(encodingFormat);
        switch (format) {
            case BASE62:
                String encodedString = Base62Encoder.toString(num);
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        super(children);
    }
   
    @Override
    public boolean evaluate(Tuple tuple, ImmutableBytesWritable ptr) {
        Expression child = children.get(0);
        if (!child.evaluate(tuple, ptr)) {
            return false;
        }
        if (ptr.getLength() == 0) {
            return true;
        }
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Related Classes of org.apache.phoenix.expression.Expression

  • org.apache.phoenix.compile.CreateSequenceCompiler
  • org.apache.phoenix.compile.CreateTableCompiler
  • org.apache.phoenix.compile.ExpressionCompiler
  • org.apache.phoenix.compile.ExpressionManager
  • org.apache.phoenix.compile.ExpressionProjector
  • org.apache.phoenix.compile.GroupByCompiler
  • org.apache.phoenix.compile.HavingClauseTest
  • org.apache.phoenix.compile.HavingCompiler
  • org.apache.phoenix.compile.HavingCompilerTest
  • org.apache.phoenix.compile.JoinCompiler$JoinSpec
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