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Release some restrictions on columns added by ALTER TABLE so that they

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only apply if the table contains one or more rows.

FossilOrigin-Name: 3a16c0ce4d8851f79f670d94786032c8007619154ece44647dc9cc5b1f9654ff
This commit is contained in:
drh
2020-05-08 19:02:21 +00:00
parent 98aa1d735e
commit 9e5fdc41c1
10 changed files with 53 additions and 27 deletions
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7
src/expr.c
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@@ -4482,7 +4482,7 @@ expr_code_doover:
|| pExpr->affExpr==OE_Fail
|| pExpr->affExpr==OE_Ignore
);
if( !pParse->pTriggerTab ){
if( !pParse->pTriggerTab && !pParse->nested ){
sqlite3ErrorMsg(pParse,
"RAISE() may only be used within a trigger-program");
return 0;
@@ -4496,8 +4496,9 @@ expr_code_doover:
v, OP_Halt, SQLITE_OK, OE_Ignore, 0, pExpr->u.zToken,0);
VdbeCoverage(v);
}else{
sqlite3HaltConstraint(pParse, SQLITE_CONSTRAINT_TRIGGER,
pExpr->affExpr, pExpr->u.zToken, 0, 0);
sqlite3HaltConstraint(pParse,
pParse->pTriggerTab ? SQLITE_CONSTRAINT_TRIGGER : SQLITE_ERROR,
pExpr->affExpr, pExpr->u.zToken, 0, 0);
}
break;