-/* $Header: /cvsroot/pgsql/src/interfaces/ecpg/ecpglib/execute.c,v 1.27 2003/11/08 19:46:27 meskes Exp $ */
+/* $Header: /cvsroot/pgsql/src/interfaces/ecpg/ecpglib/execute.c,v 1.28 2003/11/10 20:28:30 meskes Exp $ */
/*
* The aim is to get a simpler inteface to the database routines.
return (*ptr == '\0') ? NULL : ptr;
}
+static void
+ECPGtypeinfocache_push(struct ECPGtype_information_cache ** cache, int oid, bool isarray, int lineno)
+{
+ struct ECPGtype_information_cache *new_entry
+ = (struct ECPGtype_information_cache *) ECPGalloc(sizeof(struct ECPGtype_information_cache), lineno);
+
+ new_entry->oid = oid;
+ new_entry->isarray = isarray;
+ new_entry->next = *cache;
+ *cache = new_entry;
+}
+
static enum ARRAY_TYPE
ECPGis_type_an_array(int type, const struct statement * stmt, const struct variable * var)
{
char *array_query;
enum ARRAY_TYPE isarray = ECPG_ARRAY_NOT_SET;
PGresult *query;
+ struct ECPGtype_information_cache *cache_entry;
if ((stmt->connection->cache_head) == NULL)
{
* these values.
*/
#define not_an_array_in_ecpg ECPG_ARRAY_NONE
-
- switch (type)
- {
- case BOOLOID: isarray = ECPG_ARRAY_NONE;
- break;
- case BYTEAOID: isarray = ECPG_ARRAY_NONE;
- break;
- case CHAROID: isarray = ECPG_ARRAY_NONE;
- break;
- case NAMEOID: isarray = not_an_array_in_ecpg;
- break;
- case INT8OID: isarray = ECPG_ARRAY_NONE;
- break;
- case INT2OID: isarray = ECPG_ARRAY_NONE;
- break;
- case INT2VECTOROID: isarray = ECPG_ARRAY_VECTOR;
- break;
- case INT4OID: isarray = ECPG_ARRAY_NONE;
- break;
- case REGPROCOID: isarray = ECPG_ARRAY_NONE;
- break;
- case TEXTOID: isarray = ECPG_ARRAY_NONE;
- break;
- case OIDOID: isarray = ECPG_ARRAY_NONE;
- break;
- case TIDOID: isarray = ECPG_ARRAY_NONE;
- break;
- case XIDOID: isarray = ECPG_ARRAY_NONE;
- break;
- case CIDOID: isarray = ECPG_ARRAY_NONE;
- break;
- case OIDVECTOROID: isarray = ECPG_ARRAY_VECTOR;
- break;
- case POINTOID: isarray = ECPG_ARRAY_VECTOR;
- break;
- case LSEGOID: isarray = ECPG_ARRAY_VECTOR;
- break;
- case PATHOID: isarray = ECPG_ARRAY_NONE;
- break;
- case BOXOID: isarray = ECPG_ARRAY_VECTOR;
- break;
- case POLYGONOID: isarray = ECPG_ARRAY_NONE;
- break;
- case LINEOID: isarray = ECPG_ARRAY_VECTOR;
- break;
- case FLOAT4OID: isarray = ECPG_ARRAY_NONE;
- break;
- case FLOAT8OID: isarray = ECPG_ARRAY_NONE;
- break;
- case ABSTIMEOID: isarray = ECPG_ARRAY_NONE;
- break;
- case RELTIMEOID: isarray = ECPG_ARRAY_NONE;
- break;
- case TINTERVALOID: isarray = ECPG_ARRAY_NONE;
- break;
- case UNKNOWNOID: isarray = ECPG_ARRAY_NONE;
- break;
- case CIRCLEOID: isarray = ECPG_ARRAY_NONE;
- break;
- case CASHOID: isarray = ECPG_ARRAY_NONE;
- break;
- case INETOID: isarray = ECPG_ARRAY_NONE;
- break;
- case CIDROID: isarray = ECPG_ARRAY_NONE;
- break;
- case BPCHAROID: isarray = ECPG_ARRAY_NONE;
- break;
- case VARCHAROID: isarray = ECPG_ARRAY_NONE;
- break;
- case DATEOID: isarray = ECPG_ARRAY_NONE;
- break;
- case TIMEOID: isarray = ECPG_ARRAY_NONE;
- break;
- case TIMESTAMPOID: isarray = ECPG_ARRAY_NONE;
- break;
- case TIMESTAMPTZOID: isarray = ECPG_ARRAY_NONE;
- break;
- case INTERVALOID: isarray = ECPG_ARRAY_NONE;
- break;
- case TIMETZOID: isarray = ECPG_ARRAY_NONE;
- break;
- case ZPBITOID: isarray = ECPG_ARRAY_NONE;
- break;
- case VARBITOID: isarray = ECPG_ARRAY_NONE;
- break;
- case NUMERICOID: isarray = ECPG_ARRAY_NONE;
- break;
- default: break;
- }
+
+ /* populate cache with well known types to speed things up */
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), BOOLOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), BYTEAOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), CHAROID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), NAMEOID, not_an_array_in_ecpg, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), INT8OID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), INT2OID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), INT2VECTOROID, ECPG_ARRAY_VECTOR, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), INT4OID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), REGPROCOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), TEXTOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), OIDOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), TIDOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), XIDOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), CIDOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), OIDVECTOROID, ECPG_ARRAY_VECTOR, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), POINTOID, ECPG_ARRAY_VECTOR, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), LSEGOID, ECPG_ARRAY_VECTOR, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), PATHOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), BOXOID, ECPG_ARRAY_VECTOR, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), POLYGONOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), LINEOID, ECPG_ARRAY_VECTOR, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), FLOAT4OID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), FLOAT8OID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), ABSTIMEOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), RELTIMEOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), TINTERVALOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), UNKNOWNOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), CIRCLEOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), CASHOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), INETOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), CIDROID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), BPCHAROID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), VARCHAROID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), DATEOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), TIMEOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), TIMESTAMPOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), TIMESTAMPTZOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), INTERVALOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), TIMETZOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), ZPBITOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), VARBITOID, ECPG_ARRAY_NONE, stmt->lineno);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), NUMERICOID, ECPG_ARRAY_NONE, stmt->lineno);
}
- if (isarray == ECPG_ARRAY_NOT_SET)
+ for (cache_entry = (stmt->connection->cache_head); cache_entry != NULL; cache_entry = cache_entry->next)
+ {
+ if (cache_entry->oid == type)
+ return cache_entry->isarray;
+ }
+
+ array_query = (char *) ECPGalloc(strlen("select typlen from pg_type where oid= and typelem<>0") + 11, stmt->lineno);
+ sprintf(array_query, "select typlen from pg_type where oid=%d and typelem<>0", type);
+ query = PQexec(stmt->connection->connection, array_query);
+ ECPGfree(array_query);
+ if (PQresultStatus(query) == PGRES_TUPLES_OK)
{
- array_query = (char *) ECPGalloc(strlen("select typlen from pg_type where oid= and typelem<>0") + 11, stmt->lineno);
- sprintf(array_query, "select typlen from pg_type where oid=%d and typelem<>0", type);
- query = PQexec(stmt->connection->connection, array_query);
- ECPGfree(array_query);
- if (PQresultStatus(query) == PGRES_TUPLES_OK)
+ isarray = (atol((char *) PQgetvalue(query, 0, 0)) == -1) ? ECPG_ARRAY_ARRAY : ECPG_ARRAY_VECTOR;
+ if (ECPGDynamicType(type) == SQL3_CHARACTER ||
+ ECPGDynamicType(type) == SQL3_CHARACTER_VARYING)
{
- isarray = (atol((char *) PQgetvalue(query, 0, 0)) == -1) ? ECPG_ARRAY_ARRAY : ECPG_ARRAY_VECTOR;
- if (ECPGDynamicType(type) == SQL3_CHARACTER ||
- ECPGDynamicType(type) == SQL3_CHARACTER_VARYING)
- {
- /*
- * arrays of character strings are not yet implemented
- */
- isarray = ECPG_ARRAY_NONE;
- }
+ /*
+ * arrays of character strings are not yet implemented
+ */
+ isarray = ECPG_ARRAY_NONE;
}
- PQclear(query);
}
+ PQclear(query);
+ ECPGtypeinfocache_push(&(stmt->connection->cache_head), type, isarray, stmt->lineno);
ECPGlog("ECPGexecute line %d: TYPE database: %d C: %d array: %d\n", stmt->lineno, type, var->type, isarray);
return isarray;
}
projects / users / rhaas / postgres.git / commitdiff