4. The method of claim 1 , wherein the dictionary is a paged dictionary that has multiple dictionary blocks, and wherein one of the multiple dictionary blocks containing the value block is loaded into memory in response to a request for a string value in the value block.
8. The method of claim 4 , further comprising: determining that the one of the multiple dictionary blocks that includes the value block has already been loaded into memory; and searching the loaded dictionary block for the large string value.