*/
static void putsVarint(FILE *out, sqlite3_uint64 v){
int i, n;
- unsigned char buf[12], p[12];
+ unsigned char p[12];
if( v & (((sqlite3_uint64)0xff000000)<<32) ){
p[8] = (unsigned char)v;
v >>= 8;
p[n--] = (unsigned char)((v & 0x7f) | 0x80);
v >>= 7;
}while( v!=0 );
- buf[9] &= 0x7f;
- fwrite(buf+n+1, 9-n, 1, out);
+ p[9] &= 0x7f;
+ fwrite(p+n+1, 9-n, 1, out);
+ }
+}
+
+/*
+** Write an SQLite value onto out.
+*/
+static void putValue(FILE *out, sqlite3_value *pVal){
+ int iDType = sqlite3_value_type(pVal);
+ sqlite3_int64 iX;
+ double rX;
+ sqlite3_uint64 uX;
+ int j;
+
+ putc(iDType, out);
+ switch( iDType ){
+ case SQLITE_INTEGER:
+ iX = sqlite3_value_int64(pVal);
+ memcpy(&uX, &iX, 8);
+ for(j=56; j>=0; j-=8) putc((uX>>j)&0xff, out);
+ break;
+ case SQLITE_FLOAT:
+ rX = sqlite3_value_int64(pVal);
+ memcpy(&uX, &rX, 8);
+ for(j=56; j>=0; j-=8) putc((uX>>j)&0xff, out);
+ break;
+ case SQLITE_TEXT:
+ iX = sqlite3_value_bytes(pVal);
+ putsVarint(out, (sqlite3_uint64)iX);
+ fwrite(sqlite3_value_text(pVal),1,iX,out);
+ break;
+ case SQLITE_BLOB:
+ iX = sqlite3_value_bytes(pVal);
+ putsVarint(out, (sqlite3_uint64)iX);
+ fwrite(sqlite3_value_blob(pVal),1,iX,out);
+ break;
+ case SQLITE_NULL:
+ break;
}
}
int *aiPk = 0; /* Column numbers for each PK column */
int nPk = 0; /* Number of PRIMARY KEY columns */
Str sql; /* SQL for the diff query */
- int i, j; /* Loop counters */
+ int i, k; /* Loop counters */
const char *zSep; /* List separator */
pStmt = db_prepare(
strInit(&sql);
if( nCol>nPk ){
strPrintf(&sql, "SELECT %d", SQLITE_UPDATE);
- for(i=0; i<nCol; i++) strPrintf(&sql, ", A.%s", azCol[i]);
- for(i=0; i<nCol; i++) strPrintf(&sql, ", B.%s", azCol[i]);
+ for(i=0; i<nCol; i++){
+ if( aiFlg[i] ){
+ strPrintf(&sql, ",\n A.%s", azCol[i]);
+ }else{
+ strPrintf(&sql, ",\n A.%s IS NOT B.%s, A.%s, B.%s",
+ azCol[i], azCol[i], azCol[i], azCol[i]);
+ }
+ }
strPrintf(&sql,"\n FROM main.%s A, aux.%s B\n", zId, zId);
zSep = " WHERE";
for(i=0; i<nPk; i++){
strPrintf(&sql,")\n UNION ALL\n");
}
strPrintf(&sql, "SELECT %d", SQLITE_DELETE);
- for(i=0; i<nCol; i++) strPrintf(&sql, ", A.%s", azCol[i]);
- for(i=0; i<nCol; i++) strPrintf(&sql, ", 0");
- strPrintf(&sql, " FROM main.%s A\n", zId);
+ for(i=0; i<nCol; i++){
+ if( aiFlg[i] ){
+ strPrintf(&sql, ",\n A.%s", azCol[i]);
+ }else{
+ strPrintf(&sql, ",\n 1, A.%s, NULL", azCol[i]);
+ }
+ }
+ strPrintf(&sql, "\n FROM main.%s A\n", zId);
strPrintf(&sql, " WHERE NOT EXISTS(SELECT 1 FROM aux.%s B\n", zId);
zSep = " WHERE";
for(i=0; i<nPk; i++){
}
strPrintf(&sql, ")\n UNION ALL\n");
strPrintf(&sql, "SELECT %d", SQLITE_INSERT);
- for(i=0; i<nCol; i++) strPrintf(&sql, ", 0");
- for(i=0; i<nCol; i++) strPrintf(&sql, ", B.%s", azCol[i]);
- strPrintf(&sql, " FROM aux.%s B\n", zId);
+ for(i=0; i<nCol; i++){
+ if( aiFlg[i] ){
+ strPrintf(&sql, ",\n B.%s", azCol[i]);
+ }else{
+ strPrintf(&sql, ",\n 1, NULL, B.%s", azCol[i]);
+ }
+ }
+ strPrintf(&sql, "\n FROM aux.%s B\n", zId);
strPrintf(&sql, " WHERE NOT EXISTS(SELECT 1 FROM main.%s A\n", zId);
zSep = " WHERE";
for(i=0; i<nPk; i++){
strPrintf(&sql, " ORDER BY");
zSep = " ";
for(i=0; i<nPk; i++){
- strPrintf(&sql, "%s %d", zSep, aiPk[i]+1);
+ strPrintf(&sql, "%s %d", zSep, aiPk[i]+2);
zSep = ",";
}
strPrintf(&sql, ";\n");
pStmt = db_prepare("%s", sql.z);
while( SQLITE_ROW==sqlite3_step(pStmt) ){
int iType = sqlite3_column_int(pStmt,0);
- int iFirst = iType==SQLITE_INSERT ? nCol+1 : 1;
- int iLast = iType==SQLITE_DELETE ? nCol+1 : 2*nCol+1;
putc(iType, out);
putc(0, out);
- for(i=iFirst; i<=iLast; i++){
- int iDType = sqlite3_column_type(pStmt,i);
- sqlite3_int64 iX;
- double rX;
- sqlite3_uint64 uX;
- putc(iDType, out);
- switch( iDType ){
- case SQLITE_INTEGER:
- iX = sqlite3_column_int64(pStmt,i);
- memcpy(&uX, &iX, 8);
- for(j=56; j>=0; j-=8) putc((uX>>j)&0xff, out);
- break;
- case SQLITE_FLOAT:
- rX = sqlite3_column_int64(pStmt,i);
- memcpy(&uX, &rX, 8);
- for(j=56; j>=0; j-=8) putc((uX>>j)&0xff, out);
- break;
- case SQLITE_TEXT:
- iX = sqlite3_column_bytes(pStmt,i);
- putsVarint(out, (sqlite3_uint64)iX);
- fwrite(sqlite3_column_text(pStmt,i),1,iX,out);
- break;
- case SQLITE_BLOB:
- iX = sqlite3_column_bytes(pStmt,i);
- putsVarint(out, (sqlite3_uint64)iX);
- fwrite(sqlite3_column_blob(pStmt,i),1,iX,out);
- break;
- case SQLITE_NULL:
- break;
+ switch( sqlite3_column_int(pStmt,0) ){
+ case SQLITE_UPDATE: {
+ for(k=1, i=0; i<nCol; i++){
+ if( aiFlg[i] ){
+ putValue(out, sqlite3_column_value(pStmt,k));
+ k++;
+ }else if( sqlite3_column_int(pStmt,k) ){
+ putValue(out, sqlite3_column_value(pStmt,k+1));
+ k += 3;
+ }else{
+ putc(0, out);
+ k += 3;
+ }
+ }
+ for(k=1, i=0; i<nCol; i++){
+ if( aiFlg[i] ){
+ putc(0, out);
+ k++;
+ }else if( sqlite3_column_int(pStmt,k) ){
+ putValue(out, sqlite3_column_value(pStmt,k+2));
+ k += 3;
+ }else{
+ putc(0, out);
+ k += 3;
+ }
+ }
+ break;
+ }
+ case SQLITE_INSERT: {
+ for(k=1, i=0; i<nCol; i++){
+ if( aiFlg[i] ){
+ putValue(out, sqlite3_column_value(pStmt,k));
+ k++;
+ }else{
+ putValue(out, sqlite3_column_value(pStmt,k+2));
+ k += 3;
+ }
+ }
+ break;
+ }
+ case SQLITE_DELETE: {
+ for(k=1, i=0; i<nCol; i++){
+ if( aiFlg[i] ){
+ putValue(out, sqlite3_column_value(pStmt,k));
+ k++;
+ }else{
+ putValue(out, sqlite3_column_value(pStmt,k+1));
+ k += 3;
+ }
+ }
+ break;
}
}
}