Q. What kind of processing do column stores typically rely on?

View solution

Q. What does the term "cracking" in the context of database cracking reflect?

View solution

Q. In the context of database cracking, what does the system do with the base column after the first query on a column?

View solution

Q. What data structure is used to maintain partitioning information in cracking?

View solution

Q. What is the benefit of continuously reorganizing columns through cracking in response to queries?

View solution

Q. Why does cracking stop cracking a column for pieces smaller than L1 cache?

View solution

Q. In column-store systems, what allows for efficient query processing when requesting multiple columns of the same table?

View solution

Q. When a column is cracked in a column-store system, what happens to the alignment of columns within the same table?

View solution

Q. How does sideways cracking address the problem of misalignment in column-store systems when working with multiple columns of the same table?

View solution

Q. How does sideways cracking ensure alignment of column-pairs with the same head attribute?

View solution

Q. What is the benefit of sideways cracking in column-store systems when multiple columns of the same table are used in a query?

View solution

Q. What is the purpose of partial cracking in column-store systems?

View solution

Q. How does partial cracking manage storage space for cracking columns?

View solution

Q. How does cracking handle updates to the data?

View solution

Q. What is the purpose of the auxiliary delete and insert columns in cracking?

View solution

Q. How does cracking manage merging pending updates into cracking columns?

View solution

Q. What is the primary motivation for the introduction of adaptive merging as a complementary technique to cracking?

View solution

Q. How are data handled in adaptive merging after they are sorted in memory with a quicksort action?

View solution

Q. What happens if a query in adaptive merging is fully covered by the results column?

View solution

Q. How does adaptive merging improve over plain cracking in terms of convergence speed?

View solution