Package com.salesforce.phoenix.schema

Examples of com.salesforce.phoenix.schema.ColumnRef.newColumnExpression()

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        }

        @Override
        public Void visit(ColumnParseNode node) throws SQLException {
            ColumnRef ref = context.getResolver().resolveColumn(node.getSchemaName(), node.getTableName(), node.getName());
            boolean isAggregateColumn = groupBy.getExpressions().indexOf(ref.newColumnExpression()) >= 0;
            if (hasOnlyAggregateColumns == null) {
                hasOnlyAggregateColumns = isAggregateColumn;
            } else {
                hasOnlyAggregateColumns &= isAggregateColumn;
            }
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        TableRef tableRef = ref.getTableRef();
        if (tableRef.equals(context.getCurrentTable())
                && !SchemaUtil.isPKColumn(ref.getColumn())) { // project only kv columns
            context.getScan().addColumn(ref.getColumn().getFamilyName().getBytes(), ref.getColumn().getName().getBytes());
        }
        Expression expression = ref.newColumnExpression();
        Expression wrappedExpression = wrapGroupByExpression(expression);
        // If we're in an aggregate expression
        // and we're not in the context of an aggregate function
        // and we didn't just wrap our column reference
        // then we're mixing aggregate and non aggregate expressions in the same expression.
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        if (tableRef.getTable().isMultiTenant() && context.getConnection().getTenantId() != null) {
            posOffset++;
        }
        for (int i = posOffset; i < table.getColumns().size(); i++) {
            ColumnRef ref = new ColumnRef(tableRef,i);
            Expression expression = ref.newColumnExpression();
            projectedExpressions.add(expression);
            projectedColumns.add(new ExpressionProjector(ref.getColumn().getName().getString(), table.getName().getString(), expression, false));
        }
    }
   
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        }
        for (int i = tableOffset; i < table.getColumns().size(); i++) {
            PColumn tableColumn = table.getColumns().get(i);
            PColumn indexColumn = index.getColumn(IndexUtil.getIndexColumnName(tableColumn));
            ColumnRef ref = new ColumnRef(tableRef,indexColumn.getPosition());
            Expression expression = ref.newColumnExpression();
            projectedExpressions.add(expression);
            ExpressionProjector projector = new ExpressionProjector(tableColumn.getName().getString(), table.getName().getString(), expression, false);
            projectedColumns.add(projector);
        }
    }
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    private static void projectTableColumnFamily(StatementContext context, String cfName, TableRef tableRef, List<Expression> projectedExpressions, List<ExpressionProjector> projectedColumns) throws SQLException {
        PTable table = tableRef.getTable();
        PColumnFamily pfamily = table.getColumnFamily(cfName);
        for (PColumn column : pfamily.getColumns()) {
            ColumnRef ref = new ColumnRef(tableRef, column.getPosition());
            Expression expression = ref.newColumnExpression();
            projectedExpressions.add(expression);
            projectedColumns.add(new ExpressionProjector(column.getName().toString(), table.getName()
                    .getString(), expression, false));
        }
    }
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        PTable table = context.getConnection().getPMetaData().getTable(index.getParentName().getString());
        PColumnFamily pfamily = table.getColumnFamily(cfName);
        for (PColumn column : pfamily.getColumns()) {
            PColumn indexColumn = index.getColumn(IndexUtil.getIndexColumnName(column));
            ColumnRef ref = new ColumnRef(tableRef, indexColumn.getPosition());
            Expression expression = ref.newColumnExpression();
            projectedExpressions.add(expression);
            projectedColumns.add(new ExpressionProjector(column.getName().toString(),
                    table.getName().getString(), expression, false));
        }
    }
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