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If a table is the right operand of a LEFT JOIN, then any column of that

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table can be NULL even if that column as a NOT NULL constraint.
Fix for ticket [6f2222d550f5b0ee7ed].

FossilOrigin-Name: 6f6fcbe4736b9468a495c684d5eebc8bfe5c566a
This commit is contained in:
drh
2014-12-04 16:27:17 +00:00
parent d8922052b2
commit 72673a24e2
6 changed files with 72 additions and 12 deletions
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3
src/sqliteInt.h
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@@ -2015,7 +2015,7 @@ struct Expr {
/*
** The following are the meanings of bits in the Expr.flags field.
*/
#define EP_FromJoin 0x000001 /* Originated in ON or USING clause of a join */
#define EP_FromJoin 0x000001 /* Originates in ON/USING clause of outer join */
#define EP_Agg 0x000002 /* Contains one or more aggregate functions */
#define EP_Resolved 0x000004 /* IDs have been resolved to COLUMNs */
#define EP_Error 0x000008 /* Expression contains one or more errors */
@@ -2035,6 +2035,7 @@ struct Expr {
#define EP_NoReduce 0x020000 /* Cannot EXPRDUP_REDUCE this Expr */
#define EP_Unlikely 0x040000 /* unlikely() or likelihood() function */
#define EP_Constant 0x080000 /* Node is a constant */
#define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */
/*
** These macros can be used to test, set, or clear bits in the