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Add a NEVER() around a branch in sqlite3ExprAffinity() that is designed to

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prevent an infinite loop, but which can now never be reached due to recent
changes.

FossilOrigin-Name: da0b794852f8ccba5bd30395892044ec71b148075608406867785395e1f50b31
This commit is contained in:
drh 2024-06-29 12:22:32 +00:00
parent 75bdf00e89
commit 6adbdac676
3 changed files with 11 additions and 9 deletions
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@ -1,5 +1,5 @@
C Update\sfts5\scomment/docs\sto\sinclude\sthe\sorder\smatches\sare\svisited\sin\sby\sthe\sxPhraseFirst/xPhraseNext\sAPI. C Add\sa\sNEVER()\saround\sa\sbranch\sin\ssqlite3ExprAffinity()\sthat\sis\sdesigned\sto\nprevent\san\sinfinite\sloop,\sbut\swhich\scan\snow\snever\sbe\sreached\sdue\sto\srecent\nchanges.
D 2024-06-28T18:21:30.421 D 2024-06-29T12:22:32.074
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@ -705,7 +705,7 @@ F src/date.c 13dd752847afb32ed70510ad7345a5b9c841f51ad904dba5d010f1fa3a6a324e
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F src/expr.c 02652ae4e3d7147d252ae4dd16642251b09289e10ec7cb5e977c7185457e17f0 F src/expr.c 2b72d352a2917fe8d2cd8f84e0acd0140c6ba769b0cd7bcfd86eb9ba0c9c50e8
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# Remove this line to create a well-formed Fossil manifest. # Remove this line to create a well-formed Fossil manifest.

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src/expr.c
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@ -85,7 +85,9 @@ char sqlite3ExprAffinity(const Expr *pExpr){
op = pExpr->op; op = pExpr->op;
continue; continue;
} }
if( op!=TK_REGISTER || (op = pExpr->op2)==TK_REGISTER ) break; if( op!=TK_REGISTER ) break;
op = pExpr->op2;
if( NEVER( op==TK_REGISTER ) ) break;
} }
return pExpr->affExpr; return pExpr->affExpr;
} }