Non*_*nym 30
您是偶然地谈论collapse
条件,其中分组条件总是TRUE
或FALSE
?
WHERE TRUE
WHERE 1
WHERE <string value> = <the same string value>
WHERE <numeric value> = <the same numeric value>
WHERE <hardcoded formula> = <the same hardcoded formula or one that produces the same value>
WHERE NULL IS NULL
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