<!--
Documentation of the system catalogs, directed toward PostgreSQL developers
- $Header: /cvsroot/pgsql/doc/src/sgml/catalogs.sgml,v 2.51 2002/08/02 18:15:04 tgl Exp $
+ $Header: /cvsroot/pgsql/doc/src/sgml/catalogs.sgml,v 2.52 2002/08/05 02:30:46 tgl Exp $
-->
<chapter id="catalogs">
<entry>
<structfield>typtype</structfield> is <literal>b</literal> for
a base type, <literal>c</literal> for a complex type (i.e.,
- a table's row type), or <literal>d</literal> for a derived type (i.e.,
- a domain). See also <structfield>typrelid</structfield>
+ a table's row type), <literal>d</literal> for a derived type (i.e.,
+ a domain), or <literal>p</literal> for a pseudo-type. See also
+ <structfield>typrelid</structfield>
and <structfield>typbasetype</structfield>.
</entry>
</row>
<structfield>typtype</structfield>), then this field points to
the <structfield>pg_class</structfield> entry that defines the
corresponding table. A table could theoretically be used as a
- composite data type, but this is not fully functional.
+ composite data type, but this is only partly functional.
Zero for non-complex types.
</entry>
</row>
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/access/common/tupdesc.c,v 1.84 2002/08/04 19:48:09 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/access/common/tupdesc.c,v 1.85 2002/08/05 02:30:49 tgl Exp $
*
* NOTES
* some of the executor utility code such as "ExecTypeFromTL" should be
#include "catalog/namespace.h"
#include "catalog/pg_type.h"
#include "nodes/parsenodes.h"
-#include "parser/parse_relation.h"
#include "parser/parse_type.h"
#include "utils/builtins.h"
+#include "utils/lsyscache.h"
#include "utils/syscache.h"
TupleDesc
TypeGetTupleDesc(Oid typeoid, List *colaliases)
{
- char functyptype = typeid_get_typtype(typeoid);
+ char functyptype = get_typtype(typeoid);
TupleDesc tupdesc = NULL;
/*
if (label != NULL)
namestrcpy(&(tupdesc->attrs[varattno]->attname), label);
- else
- MemSet(NameStr(tupdesc->attrs[varattno]->attname), 0, NAMEDATALEN);
}
}
}
else
elog(ERROR, "Invalid return relation specified for function");
}
- else if (functyptype == 'b')
+ else if (functyptype == 'b' || functyptype == 'd')
{
/* Must be a base data type, i.e. scalar */
char *attname;
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/catalog/heap.c,v 1.216 2002/08/02 21:54:34 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/catalog/heap.c,v 1.217 2002/08/05 02:30:50 tgl Exp $
*
*
* INTERFACE ROUTINES
}
}
- /*
- * also, warn user if attribute to be created has an unknown typid
- * (usually as a result of a 'retrieve into' - jolly
- */
- for (i = 0; i < natts; i++)
- {
- if (tupdesc->attrs[i]->atttypid == UNKNOWNOID)
- elog(WARNING, "Attribute '%s' has an unknown type"
- "\n\tProceeding with relation creation anyway",
- NameStr(tupdesc->attrs[i]->attname));
- }
-
/*
* next check for repeated attribute names
*/
NameStr(tupdesc->attrs[j]->attname));
}
}
+
+ /*
+ * We also do some checking of the attribute types here.
+ *
+ * Warn user, but don't fail, if column to be created has UNKNOWN type
+ * (usually as a result of a 'retrieve into' - jolly)
+ *
+ * Refuse any attempt to create a pseudo-type column.
+ */
+ for (i = 0; i < natts; i++)
+ {
+ Oid att_type = tupdesc->attrs[i]->atttypid;
+
+ if (att_type == UNKNOWNOID)
+ elog(WARNING, "Attribute \"%s\" has an unknown type"
+ "\n\tProceeding with relation creation anyway",
+ NameStr(tupdesc->attrs[i]->attname));
+ if (get_typtype(att_type) == 'p')
+ elog(ERROR, "Attribute \"%s\" has pseudo-type %s",
+ NameStr(tupdesc->attrs[i]->attname),
+ format_type_be(att_type));
+ }
}
/* --------------------------------
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/catalog/pg_proc.c,v 1.86 2002/08/05 00:21:27 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/catalog/pg_proc.c,v 1.87 2002/08/05 02:30:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "miscadmin.h"
#include "parser/parse_coerce.h"
#include "parser/parse_expr.h"
-#include "parser/parse_relation.h"
#include "parser/parse_type.h"
#include "tcop/tcopprot.h"
#include "utils/builtins.h"
typerelid = typeidTypeRelid(rettype);
- if (fn_typtype == 'b')
+ if (fn_typtype == 'b' || fn_typtype == 'd')
{
/* Shouldn't have a typerelid */
Assert(typerelid == InvalidOid);
prosrc = DatumGetCString(DirectFunctionCall1(textout, tmp));
/* check typtype to see if we have a predetermined return type */
- functyptype = typeid_get_typtype(proc->prorettype);
+ functyptype = get_typtype(proc->prorettype);
querytree_list = pg_parse_and_rewrite(prosrc, proc->proargtypes, proc->pronargs);
checkretval(proc->prorettype, functyptype, querytree_list);
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/executor/functions.c,v 1.53 2002/08/04 19:48:09 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/executor/functions.c,v 1.54 2002/08/05 02:30:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
*/
fcache->typlen = typeStruct->typlen;
- if (typeStruct->typtype == 'b')
+ if (typeStruct->typtype == 'b' || typeStruct->typtype == 'd')
{
/* The return type is not a relation, so just use byval */
fcache->typbyval = typeStruct->typbyval;
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/executor/nodeFunctionscan.c,v 1.4 2002/08/04 19:48:09 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/executor/nodeFunctionscan.c,v 1.5 2002/08/05 02:30:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
#include "executor/nodeFunctionscan.h"
#include "parser/parsetree.h"
#include "parser/parse_expr.h"
-#include "parser/parse_relation.h"
#include "parser/parse_type.h"
#include "storage/lmgr.h"
#include "tcop/pquery.h"
* Now determine if the function returns a simple or composite type,
* and check/add column aliases.
*/
- functyptype = typeid_get_typtype(funcrettype);
+ functyptype = get_typtype(funcrettype);
/*
* Build a suitable tupledesc representing the output rows
else
elog(ERROR, "Invalid return relation specified for function");
}
- else if (functyptype == 'b')
+ else if (functyptype == 'b' || functyptype == 'd')
{
/*
* Must be a base data type, i.e. scalar
*/
if (fn_typtype == 'p' && fn_typeid == RECORDOID)
if (tupledesc_mismatch(tupdesc, slot->ttc_tupleDescriptor))
- elog(ERROR, "Query specified return tuple and actual"
+ elog(ERROR, "Query-specified return tuple and actual"
" function return tuple do not match");
}
else
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.355 2002/08/04 19:48:09 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.356 2002/08/05 02:30:50 tgl Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
%type <chr> TriggerOneEvent
%type <list> stmtblock, stmtmulti,
- OptTableElementList, OptInherit, definition,
+ OptTableElementList, TableElementList, OptInherit, definition,
opt_distinct, opt_definition, func_args,
func_args_list, func_as, createfunc_opt_list
oper_argtypes, RuleActionList, RuleActionMulti,
insert_target_list, def_list, opt_indirection,
group_clause, TriggerFuncArgs, select_limit,
opt_select_limit, opclass_item_list, trans_options,
- tableFuncElementList
+ TableFuncElementList, OptTableFuncElementList
%type <range> into_clause, OptTempTableName
%type <vsetstmt> set_rest
-%type <node> OptTableElement, ConstraintElem, tableFuncElement
-%type <node> columnDef, tableFuncColumnDef
+%type <node> TableElement, ConstraintElem, TableFuncElement
+%type <node> columnDef
%type <defelt> def_elem
%type <node> def_arg, columnElem, where_clause, insert_column_item,
a_expr, b_expr, c_expr, r_expr, AexprConst,
;
OptTableElementList:
- OptTableElementList ',' OptTableElement
+ TableElementList { $$ = $1; }
+ | /*EMPTY*/ { $$ = NIL; }
+ ;
+
+TableElementList:
+ TableElementList ',' TableElement
{
- if ($3 != NULL)
- $$ = lappend($1, $3);
- else
- $$ = $1;
+ $$ = lappend($1, $3);
}
- | OptTableElement
+ | TableElement
{
- if ($1 != NULL)
- $$ = makeList1($1);
- else
- $$ = NIL;
+ $$ = makeList1($1);
}
- | /*EMPTY*/ { $$ = NIL; }
;
-OptTableElement:
+TableElement:
columnDef { $$ = $1; }
| TableLikeClause { $$ = $1; }
| TableConstraint { $$ = $1; }
;
OptSeqList: OptSeqList OptSeqElem { $$ = lappend($1, $2); }
- | { $$ = NIL; }
+ | /*EMPTY*/ { $$ = NIL; }
;
OptSeqElem: CACHE NumericOnly
n->coldeflist = NIL;
$$ = (Node *) n;
}
- | func_table AS '(' tableFuncElementList ')'
+ | func_table AS '(' OptTableFuncElementList ')'
{
RangeFunction *n = makeNode(RangeFunction);
n->funccallnode = $1;
n->coldeflist = $4;
$$ = (Node *) n;
}
- | func_table AS ColId '(' tableFuncElementList ')'
+ | func_table AS ColId '(' OptTableFuncElementList ')'
{
RangeFunction *n = makeNode(RangeFunction);
Alias *a = makeNode(Alias);
n->coldeflist = $5;
$$ = (Node *) n;
}
- | func_table ColId '(' tableFuncElementList ')'
+ | func_table ColId '(' OptTableFuncElementList ')'
{
RangeFunction *n = makeNode(RangeFunction);
Alias *a = makeNode(Alias);
;
-tableFuncElementList:
- tableFuncElementList ',' tableFuncElement
+OptTableFuncElementList:
+ TableFuncElementList { $$ = $1; }
+ | /*EMPTY*/ { $$ = NIL; }
+ ;
+
+TableFuncElementList:
+ TableFuncElementList ',' TableFuncElement
{
- if ($3 != NULL)
- $$ = lappend($1, $3);
- else
- $$ = $1;
+ $$ = lappend($1, $3);
}
- | tableFuncElement
+ | TableFuncElement
{
- if ($1 != NULL)
- $$ = makeList1($1);
- else
- $$ = NIL;
+ $$ = makeList1($1);
}
- | /*EMPTY*/ { $$ = NIL; }
- ;
-
-tableFuncElement:
- tableFuncColumnDef { $$ = $1; }
;
-tableFuncColumnDef: ColId Typename
+TableFuncElement: ColId Typename
{
ColumnDef *n = makeNode(ColumnDef);
n->colname = $1;
*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.72 2002/08/04 19:48:10 momjian Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/parse_relation.c,v 1.73 2002/08/05 02:30:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
* Now determine if the function returns a simple or composite type,
* and check/add column aliases.
*/
- functyptype = typeid_get_typtype(funcrettype);
+ functyptype = get_typtype(funcrettype);
if (functyptype == 'c')
{
elog(ERROR, "Invalid return relation specified for function %s",
funcname);
}
- else if (functyptype == 'b')
+ else if (functyptype == 'b' || functyptype == 'd')
{
/*
* Must be a base data type, i.e. scalar.
{
/* Function RTE */
Oid funcrettype = exprType(rte->funcexpr);
- char functyptype = typeid_get_typtype(funcrettype);
+ char functyptype = get_typtype(funcrettype);
List *coldeflist = rte->coldeflist;
/*
Oid funcrelid = typeidTypeRelid(funcrettype);
if (OidIsValid(funcrelid))
{
-
/*
* Composite data type, i.e. a table's row type
* Same as ordinary relation RTE
elog(ERROR, "Invalid return relation specified"
" for function");
}
- else if (functyptype == 'b')
+ else if (functyptype == 'b' || functyptype == 'd')
{
/*
* Must be a base data type, i.e. scalar
{
/* Function RTE */
Oid funcrettype = exprType(rte->funcexpr);
- char functyptype = typeid_get_typtype(funcrettype);
+ char functyptype = get_typtype(funcrettype);
List *coldeflist = rte->coldeflist;
/*
elog(ERROR, "Invalid return relation specified"
" for function");
}
- else if (functyptype == 'b')
+ else if (functyptype == 'b' || functyptype == 'd')
{
/*
* Must be a base data type, i.e. scalar
pstate->parentParseState != NULL ? " in subquery" : "",
relation->relname);
}
-
-char
-typeid_get_typtype(Oid typeid)
-{
- HeapTuple typeTuple;
- Form_pg_type typeStruct;
- char result;
-
- /*
- * determine if the function returns a simple, named composite,
- * or anonymous composite type
- */
- typeTuple = SearchSysCache(TYPEOID,
- ObjectIdGetDatum(typeid),
- 0, 0, 0);
- if (!HeapTupleIsValid(typeTuple))
- elog(ERROR, "cache lookup for type %u failed", typeid);
- typeStruct = (Form_pg_type) GETSTRUCT(typeTuple);
-
- result = typeStruct->typtype;
-
- ReleaseSysCache(typeTuple);
-
- return result;
-}
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.77 2002/08/02 18:15:08 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/utils/cache/lsyscache.c,v 1.78 2002/08/05 02:30:50 tgl Exp $
*
* NOTES
* Eventually, the index information should go through here, too.
/*
* get_typtype
*
- * Given the type OID, find if it is a basic type, a named relation
- * or the generic type 'relation'.
+ * Given the type OID, find if it is a basic type, a complex type, etc.
* It returns the null char if the cache lookup fails...
*/
-#ifdef NOT_USED
char
get_typtype(Oid typid)
{
else
return '\0';
}
-#endif
+
/* ---------- STATISTICS CACHE ---------- */
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: pg_type.h,v 1.126 2002/08/04 19:48:10 momjian Exp $
+ * $Id: pg_type.h,v 1.127 2002/08/05 02:30:50 tgl Exp $
*
* NOTES
* the genbki.sh script reads this file and generates .bki
bool typbyval;
/*
- * typtype is 'b' for a basic type, 'c' for a catalog type (ie a
- * class), or 'p' for a pseudo type. If typtype is 'c', typrelid is the
- * OID of the class' entry in pg_class. (Why do we need an entry in
- * pg_type for classes, anyway?)
+ * typtype is 'b' for a basic type, 'c' for a complex type (ie a
+ * table's rowtype), 'd' for a domain type, or 'p' for a pseudo type.
+ *
+ * If typtype is 'c', typrelid is the OID of the class' entry in pg_class.
*/
char typtype;
bool typisdefined;
char typdelim; /* delimiter for arrays of this type */
- Oid typrelid; /* 0 if not a class type */
+
+ Oid typrelid; /* 0 if not a complex type */
/*
* If typelem is not 0 then it identifies another row in pg_type. The
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: parse_relation.h,v 1.36 2002/08/04 19:48:11 momjian Exp $
+ * $Id: parse_relation.h,v 1.37 2002/08/05 02:30:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
extern int attnameAttNum(Relation rd, const char *attname, bool sysColOK);
extern Name attnumAttName(Relation rd, int attid);
extern Oid attnumTypeId(Relation rd, int attid);
-extern char typeid_get_typtype(Oid typeid);
#endif /* PARSE_RELATION_H */
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Id: lsyscache.h,v 1.56 2002/08/02 18:15:09 tgl Exp $
+ * $Id: lsyscache.h,v 1.57 2002/08/05 02:30:50 tgl Exp $
*
*-------------------------------------------------------------------------
*/
extern void get_typlenbyval(Oid typid, int16 *typlen, bool *typbyval);
extern char get_typstorage(Oid typid);
extern Node *get_typdefault(Oid typid);
+extern char get_typtype(Oid typid);
extern Oid getBaseType(Oid typid);
extern Oid getBaseTypeTypeMod(Oid typid, int32 *typmod);
extern int32 get_typavgwidth(Oid typid, int32 typmod);
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