1. A computer-implemented method of graphically summarizing data in a query result, comprising: receiving a query result set, wherein the query result set includes a plurality of rows and a data quality value assigned to each row, wherein the data quality value indicates a quality of data in the row based on a data quality standard; receiving a request to remove rows containing data that fails to satisfy a predetermined data quality threshold; removing one or more rows from the query result set, wherein the assigned data quality value for each removed row fails to satisfy the predetermined data quality threshold; outputting for display at least a portion of the query result set, wherein the at least a portion of the query result set excludes the removed one or more rows; generating, by operation of one or more computer processors, a summarization bitmap, wherein the summarization bitmap, bitmap includes a plurality of blocks each having a color and representing one or more rows of the query result set, and wherein for each block in the plurality of blocks, the color is a first color if the corresponding one or more rows are not displayed and were removed from the query result set because the assigned data quality value for at least one of the corresponding one or more rows failed to satisfy the predetermined data quality threshold, and wherein the color is a second color if the corresponding one or more rows are displayed; and outputting for display the generated summarization bitmap.