Hash join: Difference between revisions
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(Rewrite the task description for clarity. Doesn't change the task content, except that the join column in table B has been renamed from "Name" to "Character".) |
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'''for each''' row ''b'' '''in''' multimap ''M<sub>B</sub>'' under key ''a''(''j<sub>A</sub>'') |
'''for each''' row ''b'' '''in''' multimap ''M<sub>B</sub>'' under key ''a''(''j<sub>A</sub>'') |
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'''let''' ''c'' = the concatenation of row ''a'' and row ''b'' |
'''let''' ''c'' = the concatenation of row ''a'' and row ''b'' |
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'''place''' ''c'' in table ''C'' |
'''place''' row ''c'' in table ''C'' |
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{{introheader|Test-case}} |
{{introheader|Test-case}} |
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