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Use sqlite3_table_column_metadata() instead of a SELECT statement to check for

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the existence of a %_stat table in fts3. This leads to smaller and easier to
test code.

FossilOrigin-Name: dc2a48020a3c856a8b4cfa2309c290f0508b991e92cc0e4de680d19aae7872fc
This commit is contained in:
dan
2017-04-18 13:50:00 +00:00
parent bff6fe1f40
commit 0027e98b85
3 changed files with 14 additions and 20 deletions
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ext/fts3/fts3.c
+5 -11
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@@ -3451,17 +3451,11 @@ static int fts3SyncMethod(sqlite3_vtab *pVtab){
static int fts3SetHasStat(Fts3Table *p){
int rc = SQLITE_OK;
if( p->bHasStat==2 ){
const char *zFmt ="SELECT 1 FROM %Q.sqlite_master WHERE tbl_name='%q_stat'";
char *zSql = sqlite3_mprintf(zFmt, p->zDb, p->zName);
if( zSql ){
sqlite3_stmt *pStmt = 0;
rc = sqlite3_prepare_v2(p->db, zSql, -1, &pStmt, 0);
if( rc==SQLITE_OK ){
int bHasStat = (sqlite3_step(pStmt)==SQLITE_ROW);
rc = sqlite3_finalize(pStmt);
if( rc==SQLITE_OK ) p->bHasStat = (u8)bHasStat;
}
sqlite3_free(zSql);
char *zTbl = sqlite3_mprintf("%s_stat", p->zName);
if( zTbl ){
int res = sqlite3_table_column_metadata(p->db, p->zDb, zTbl, 0,0,0,0,0,0);
sqlite3_free(zTbl);
p->bHasStat = (res==SQLITE_OK);
}else{
rc = SQLITE_NOMEM;
}