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Refactor for correct NULL handling in the IS TRUE, IS FALSE, IS NOT TRUE,

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and IS NOT FALSE operators.

FossilOrigin-Name: cf2abd59be9971a55bd3d6c5df374c6aaa23bf81819482b42f01ee2484dcd739
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drh
2018-02-26 18:49:05 +00:00
parent bc8f68a3a0
commit 8abed7b907
8 changed files with 181 additions and 46 deletions
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src/sqliteInt.h
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@@ -2387,7 +2387,8 @@ struct Expr {
** TK_REGISTER: register number
** TK_TRIGGER: 1 -> new, 0 -> old
** EP_Unlikely: 134217728 times likelihood
** TK_SELECT: 1st register of result vector */
** TK_SELECT: 1st register of result vector
** TK_TRUEFALSE: 1 for true, 0 for false */
ynVar iColumn; /* TK_COLUMN: column index. -1 for rowid.
** TK_VARIABLE: variable number (always >= 1).
** TK_SELECT_COLUMN: column of the result vector */