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Merge updates from trunk.

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FossilOrigin-Name: 59d1a3bb6050a812c4eb0d25ac53327081b9efed
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mistachkin
2015-04-19 23:40:55 +00:00
parent f659cf48e8 542a176d5e
commit 0311b622c4
11 changed files with 137 additions and 42 deletions
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36
src/insert.c
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@@ -342,20 +342,23 @@ static int xferOptimization(
/*
** This routine is called to handle SQL of the following forms:
**
** insert into TABLE (IDLIST) values(EXPRLIST)
** insert into TABLE (IDLIST) values(EXPRLIST),(EXPRLIST),...
** insert into TABLE (IDLIST) select
** insert into TABLE (IDLIST) default values
**
** The IDLIST following the table name is always optional. If omitted,
** then a list of all columns for the table is substituted. The IDLIST
** appears in the pColumn parameter. pColumn is NULL if IDLIST is omitted.
** then a list of all (non-hidden) columns for the table is substituted.
** The IDLIST appears in the pColumn parameter. pColumn is NULL if IDLIST
** is omitted.
**
** The pList parameter holds EXPRLIST in the first form of the INSERT
** statement above, and pSelect is NULL. For the second form, pList is
** NULL and pSelect is a pointer to the select statement used to generate
** data for the insert.
** For the pSelect parameter holds the values to be inserted for the
** first two forms shown above. A VALUES clause is really just short-hand
** for a SELECT statement that omits the FROM clause and everything else
** that follows. If the pSelect parameter is NULL, that means that the
** DEFAULT VALUES form of the INSERT statement is intended.
**
** The code generated follows one of four templates. For a simple
** insert with data coming from a VALUES clause, the code executes
** insert with data coming from a single-row VALUES clause, the code executes
** once straight down through. Pseudo-code follows (we call this
** the "1st template"):
**
@@ -462,7 +465,7 @@ void sqlite3Insert(
u8 useTempTable = 0; /* Store SELECT results in intermediate table */
u8 appendFlag = 0; /* True if the insert is likely to be an append */
u8 withoutRowid; /* 0 for normal table. 1 for WITHOUT ROWID table */
u8 bIdListInOrder = 1; /* True if IDLIST is in table order */
u8 bIdListInOrder; /* True if IDLIST is in table order */
ExprList *pList = 0; /* List of VALUES() to be inserted */
/* Register allocations */
@@ -487,8 +490,8 @@ void sqlite3Insert(
}
/* If the Select object is really just a simple VALUES() list with a
** single row values (the common case) then keep that one row of values
** and go ahead and discard the Select object
** single row (the common case) then keep that one row of values
** and discard the other (unused) parts of the pSelect object
*/
if( pSelect && (pSelect->selFlags & SF_Values)!=0 && pSelect->pPrior==0 ){
pList = pSelect->pEList;
@@ -596,6 +599,7 @@ void sqlite3Insert(
** is appears in the original table. (The index of the INTEGER
** PRIMARY KEY in the original table is pTab->iPKey.)
*/
bIdListInOrder = (pTab->tabFlags & TF_OOOHidden)==0;
if( pColumn ){
for(i=0; i<pColumn->nId; i++){
pColumn->a[i].idx = -1;
@@ -631,7 +635,8 @@ void sqlite3Insert(
** co-routine is the common header to the 3rd and 4th templates.
*/
if( pSelect ){
/* Data is coming from a SELECT. Generate a co-routine to run the SELECT */
/* Data is coming from a SELECT or from a multi-row VALUES clause.
** Generate a co-routine to run the SELECT. */
int regYield; /* Register holding co-routine entry-point */
int addrTop; /* Top of the co-routine */
int rc; /* Result code */
@@ -644,8 +649,7 @@ void sqlite3Insert(
dest.nSdst = pTab->nCol;
rc = sqlite3Select(pParse, pSelect, &dest);
regFromSelect = dest.iSdst;
assert( pParse->nErr==0 || rc );
if( rc || db->mallocFailed ) goto insert_cleanup;
if( rc || db->mallocFailed || pParse->nErr ) goto insert_cleanup;
sqlite3VdbeAddOp1(v, OP_EndCoroutine, regYield);
sqlite3VdbeJumpHere(v, addrTop - 1); /* label B: */
assert( pSelect->pEList );
@@ -693,8 +697,8 @@ void sqlite3Insert(
sqlite3ReleaseTempReg(pParse, regTempRowid);
}
}else{
/* This is the case if the data for the INSERT is coming from a VALUES
** clause
/* This is the case if the data for the INSERT is coming from a
** single-row VALUES clause
*/
NameContext sNC;
memset(&sNC, 0, sizeof(sNC));