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Enhance the internal sqlite3VdbeAddOpList() interface to automatically update

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jump destinations.  Use this feature to simplify the AUTOINCREMENT code
generator.

FossilOrigin-Name: ae8b9d2edf1b5aef6108e729754911db7682b6a3
This commit is contained in:
drh
2016-02-03 01:55:44 +00:00
parent b06347a5dc
commit 1b32554b80
7 changed files with 80 additions and 52 deletions
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22
src/vdbeblob.c
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@@ -249,19 +249,17 @@ int sqlite3_blob_open(
** which closes the b-tree cursor and (possibly) commits the
** transaction.
*/
static const int iLn = VDBE_OFFSET_LINENO(4);
static const int iLn = VDBE_OFFSET_LINENO(2);
static const VdbeOpList openBlob[] = {
/* addr/ofst */
/* {OP_Transaction, 0, 0, 0}, // 0/ inserted separately */
{OP_TableLock, 0, 0, 0}, /* 1/0: Acquire a read or write lock */
{OP_OpenRead, 0, 0, 0}, /* 2/1: Open a cursor */
{OP_Variable, 1, 1, 0}, /* 3/2: Move ?1 into reg[1] */
{OP_NotExists, 0, 8, 1}, /* 4/3: Seek the cursor */
{OP_Column, 0, 0, 1}, /* 5/4 */
{OP_ResultRow, 1, 0, 0}, /* 6/5 */
{OP_Goto, 0, 3, 0}, /* 7/6 */
{OP_Close, 0, 0, 0}, /* 8/7 */
{OP_Halt, 0, 0, 0}, /* 9/8 */
{OP_TableLock, 0, 0, 0}, /* 0: Acquire a read or write lock */
{OP_OpenRead, 0, 0, 0}, /* 1: Open a cursor */
{OP_Variable, 1, 1, 0}, /* 2: Move ?1 into reg[1] */
{OP_NotExists, 0, 7, 1}, /* 3: Seek the cursor */
{OP_Column, 0, 0, 1}, /* 4 */
{OP_ResultRow, 1, 0, 0}, /* 5 */
{OP_Goto, 0, 2, 0}, /* 6 */
{OP_Close, 0, 0, 0}, /* 7 */
{OP_Halt, 0, 0, 0}, /* 8 */
};
Vdbe *v = (Vdbe *)pBlob->pStmt;
int iDb = sqlite3SchemaToIndex(db, pTab->pSchema);