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Always disallow the use of non-deterministic functions in CHECK constraints,

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even date/time functions that use the 'now' or similar keywords.  Provide
improved error messages when this requirement is not met.
Ticket [830277d9db6c3ba1]

FossilOrigin-Name: 2978b65ebe25eeabe543b67cb266308cceb20082a4ae71565d6d083d7c08bc9f
This commit is contained in:
drh
2019-10-30 18:50:08 +00:00
parent 920cf596e6
commit 20cee7d0bb
10 changed files with 104 additions and 55 deletions
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4
src/expr.c
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@@ -4033,7 +4033,7 @@ expr_code_doover:
#endif
{
sqlite3VdbeAddFunctionCall(pParse, constMask, r1, target, nFarg,
pDef, pParse->iSelfTab);
pDef, pExpr->op2);
}
if( nFarg && constMask==0 ){
sqlite3ReleaseTempRange(pParse, r1, nFarg);
@@ -5028,7 +5028,7 @@ int sqlite3ExprCompare(Parse *pParse, Expr *pA, Expr *pB, int iTab){
&& (combinedFlags & EP_Reduced)==0
){
if( pA->iColumn!=pB->iColumn ) return 2;
if( pA->op2!=pB->op2 ) return 2;
if( pA->op2!=pB->op2 && (pA->op!=TK_FUNCTION || iTab<0) ) return 2;
if( pA->op!=TK_IN && pA->iTable!=pB->iTable && pA->iTable!=iTab ){
return 2;
}