Fix insertion of default values broken since #85#121
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When printing the SQL, we analyse the `PrimExpr`s and `PrimQuery` to detect the case where `rows` is set to `rows = values _` and, if so, we output a bare `VALUES` statement instead of a `SELECT`, because `DEFAULT` is only syntactically valid in a bare `VALUES` clause.
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ocharles
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Jul 17, 2021
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When printing the SQL, we analyse the
PrimExprs andPrimQueryto detect the case whererowsis set torows = values _and, if so, we output a bareVALUESinstead of aSELECT, becauseDEFAULTis only syntactically valid in a bareVALUESclause.