diff options
Diffstat (limited to 'src/expr.c')
| -rw-r--r-- | src/expr.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/expr.c b/src/expr.c index 330e057a0..093736f39 100644 --- a/src/expr.c +++ b/src/expr.c @@ -3645,7 +3645,16 @@ expr_code_doover: iSrc = sqlite3TableColumnToStorage(pTab, iCol) - pParse->iSelfTab; #ifndef SQLITE_OMIT_GENERATED_COLUMNS if( pCol->colFlags & COLFLAG_GENERATED ){ - sqlite3ExprCodeGeneratedColumn(pParse, pCol, iSrc); + if( pCol->colFlags & COLFLAG_BUSY ){ + sqlite3ErrorMsg(pParse, "generated column loop on \"%s\"", + pCol->zName); + return 0; + } + pCol->colFlags |= COLFLAG_BUSY; + if( pCol->colFlags & COLFLAG_NOTAVAIL ){ + sqlite3ExprCodeGeneratedColumn(pParse, pCol, iSrc); + } + pCol->colFlags &= ~(COLFLAG_BUSY|COLFLAG_NOTAVAIL); return iSrc; }else #endif /* SQLITE_OMIT_GENERATED_COLUMNS */ |