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Allow CAST expressions and unary "+" operators to be used in the DEFAULT

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argument of an ALTER TABLE ADD COLUMN and to be understand on the RHS of
range constraints interpreted by STAT3/4.  This involves a rewrite of the
implementation of the CAST operator.

FossilOrigin-Name: 91d8a8d0b792ea5c4fe68fd9caaf3345eddea486
This commit is contained in:
drh
2014-08-25 20:11:52 +00:00
parent f741e0491e
commit 4169e430a2
7 changed files with 84 additions and 117 deletions
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src/vdbeInt.h
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@@ -425,6 +425,7 @@ double sqlite3VdbeRealValue(Mem*);
void sqlite3VdbeIntegerAffinity(Mem*);
int sqlite3VdbeMemRealify(Mem*);
int sqlite3VdbeMemNumerify(Mem*);
void sqlite3VdbeMemCast(Mem*,u8,u8);
int sqlite3VdbeMemFromBtree(BtCursor*,u32,u32,int,Mem*);
void sqlite3VdbeMemRelease(Mem *p);
void sqlite3VdbeMemReleaseExternal(Mem *p);