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Commit of a *MAJOR* patch from Dan McGuirk <djm@indirect.com>

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Changes:

        * Unique index capability works using the syntax 'create unique
          index'.

        * Duplicate OID's in the system tables are removed.  I put
          little scripts called 'duplicate_oids' and 'find_oid' in
          include/catalog that help to find and remove duplicate OID's.
          I also moved 'unused_oids' from backend/catalog to
          include/catalog, since it has to be in the same directory
          as the include files in order to work.

        * The backend tries converting the name of a function or aggregate
          to all lowercase if the original name given doesn't work (mostly
          for compatibility with ODBC).

        * You can 'SELECT NULL' to your heart's content.

        * I put my _bt_updateitem fix in instead, which uses
          _bt_insertonpg so that even if the new key is so big that
          the page has to be split, everything still works.

        * All literal references to system catalog OID's have been
          replaced with references to define'd constants from the catalog
          header files.

        * I added a couple of node copy functions.  I think this was a
          preliminary attempt to get rules to work.
This commit is contained in:
Marc G. Fournier
1996-11-13 20:56:15 +00:00
parent 0cec8fe26c
commit 07a65b2255
45 changed files with 861 additions and 588 deletions
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48
src/backend/parser/catalog_utils.c
View File

@@ -6,7 +6,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/catalog_utils.c,v 1.9 1996/11/10 03:01:23 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/Attic/catalog_utils.c,v 1.10 1996/11/13 20:48:58 scrappy Exp $
*
*-------------------------------------------------------------------------
*/
@@ -108,6 +108,9 @@ static Oid **argtype_inherit(int nargs, Oid *oid_array);
static Oid **genxprod(InhPaths *arginh, int nargs);
static int findsupers(Oid relid, Oid **supervec);
static bool is_lowercase(char *string);
static void make_lowercase(char *string);
/* check to see if a type id is valid,
* returns true if it is. By using this call before calling
* get_id_type or get_id_typname, more meaningful error messages
@@ -1010,6 +1013,30 @@ func_select_candidate(int nargs,
return (NULL);
}
static bool is_lowercase(char *string)
{
int i;
for(i = 0; i < strlen(string); i++) {
if(string[i] >= 'A' && string[i] <= 'Z') {
return false;
}
}
return true;
}
static void make_lowercase(char *string)
{
int i;
for(i = 0; i < strlen(string); i++) {
if(string[i] >= 'A' && string[i] <= 'Z') {
string[i] = (string[i] - 'A') + 'a';
}
}
}
bool
func_get_detail(char *funcname,
int nargs,
@@ -1105,6 +1132,24 @@ func_get_detail(char *funcname,
if (!HeapTupleIsValid(ftup)) {
Type tp;
/*
* everything else has failed--try converting the function
* name to lowercase, and do everything one more time
* (if it's not already lowercase). so ODBC applications
* that expect uppercase names to work can work. --djm 8/17/96
*/
if(!is_lowercase(funcname)) {
char *lowercase_funcname = strdup(funcname);
bool result;
make_lowercase(lowercase_funcname);
result = func_get_detail(lowercase_funcname, nargs, oid_array,
funcid, rettype, retset,
true_typeids);
free(lowercase_funcname);
return result;
} else {
if (nargs == 1) {
tp = get_id_type(oid_array[0]);
if (typetypetype(tp) == 'c')
@@ -1112,6 +1157,7 @@ func_get_detail(char *funcname,
funcname);
}
func_error("func_get_detail", funcname, nargs, (int*)oid_array);
}
} else {
pform = (Form_pg_proc) GETSTRUCT(ftup);
*funcid = ftup->t_oid;