*
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.126 2001/05/07 00:43:17 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/commands/Attic/command.c,v 1.127 2001/05/09 21:10:38 momjian Exp $
*
* NOTES
* The PerformAddAttribute() code, like most of the relation
#include "parser/parse_expr.h"
#include "parser/parse_clause.h"
#include "parser/parse_relation.h"
+#include "parser/parse_oper.h"
#include "nodes/makefuncs.h"
#include "optimizer/planmain.h"
#include "optimizer/clauses.h"
int i;
bool found = false;
+ Oid fktypoid[INDEX_MAX_KEYS];
+ Oid pktypoid[INDEX_MAX_KEYS];
+ int attloc;
+
+ for (i=0; i<INDEX_MAX_KEYS; i++)
+ fktypoid[i]=pktypoid[i]=0;
+
if (is_temp_rel_name(fkconstraint->pktable_name) &&
!is_temp_rel_name(relationName))
elog(ERROR, "ALTER TABLE / ADD CONSTRAINT: Unable to reference temporary table from permanent table constraint.");
found = false;
else
{
+ attloc=0;
/* go through the fkconstraint->pk_attrs list */
foreach(attrl, fkconstraint->pk_attrs)
{
if (strcmp(name, attr->name) == 0)
{
+ /* We get the type of this attribute here and
+ * store it so we can use it later for making
+ * sure the types are comparable.
+ */
+ pktypoid[attloc++]=rel_attrs[pkattno-1]->atttypid;
found = true;
break;
}
Ident *fkattr;
found = false;
+ attloc = 0;
foreach(fkattrs, fkconstraint->fk_attrs)
{
int count;
if (strcmp(name, fkattr->name) == 0)
{
+ /*
+ * Here once again we get the types, this
+ * time for the fk table's attributes
+ */
+ fktypoid[attloc++]=rel->rd_att->attrs[count]->atttypid;
found = true;
break;
}
elog(ERROR, "columns referenced in foreign key constraint not found.");
}
+ for (i=0; i < INDEX_MAX_KEYS && fktypoid[i] !=0; i++) {
+ /*
+ * fktypoid[i] is the foreign key table's i'th element's type oid
+ * pktypoid[i] is the primary key table's i'th element's type oid
+ * We let oper() do our work for us, including elog(ERROR) if the
+ * types can't compare with =
+ */
+ Operator o=oper("=", fktypoid[i], pktypoid[i], false);
+ ReleaseSysCache(o);
+ }
+
trig.tgoid = 0;
if (fkconstraint->constr_name)
trig.tgname = fkconstraint->constr_name;
* Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
- * $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.184 2001/05/07 00:43:22 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.185 2001/05/09 21:10:39 momjian Exp $
*
*-------------------------------------------------------------------------
*/
#include "parser/parse_agg.h"
#include "parser/parse_clause.h"
#include "parser/parse_coerce.h"
+#include "parser/parse_expr.h"
+#include "parser/parse_oper.h"
#include "parser/parse_relation.h"
#include "parser/parse_target.h"
#include "parser/parse_type.h"
static List *getSetColTypes(ParseState *pstate, Node *node);
static void transformForUpdate(Query *qry, List *forUpdate);
-static void transformFkeyGetPrimaryKey(FkConstraint *fkconstraint);
+static void transformFkeyGetPrimaryKey(FkConstraint *fkconstraint, Oid *pktypoid);
static void transformConstraintAttrs(List *constraintList);
static void transformColumnType(ParseState *pstate, ColumnDef *column);
-static void transformFkeyCheckAttrs(FkConstraint *fkconstraint);
+static void transformFkeyCheckAttrs(FkConstraint *fkconstraint, Oid *pktypoid);
static void release_pstate_resources(ParseState *pstate);
static FromExpr *makeFromExpr(List *fromlist, Node *quals);
List *fk_attr;
List *pk_attr;
Ident *id;
+ Oid pktypoid[INDEX_MAX_KEYS];
+ Oid fktypoid[INDEX_MAX_KEYS];
+ int i;
+ for (i=0; i<INDEX_MAX_KEYS; i++) {
+ pktypoid[i]=fktypoid[i]=0;
+ }
elog(NOTICE, "CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)");
foreach(fkclist, fkconstraints)
if (fkconstraint->fk_attrs != NIL)
{
int found = 0;
+ int attnum=0;
List *cols;
List *fkattrs;
Ident *fkattr = NULL;
col = lfirst(cols);
if (strcmp(col->colname, fkattr->name) == 0)
{
+ char *buff=TypeNameToInternalName(col->typename);
+ Oid type=typenameTypeId(buff);
+ if (!OidIsValid(type)) {
+ elog(ERROR, "Unable to lookup type %s", col->typename->name);
+ }
+ fktypoid[attnum++]=type;
found = 1;
break;
}
}
- if (!found)
- break;
- }
- if (!found)
- { /* try inherited tables */
- List *inher;
- List *inhRelnames = stmt->inhRelnames;
- Relation rel;
+ if (!found) {
+ List *inher;
+ List *inhRelnames = stmt->inhRelnames;
+ Relation rel;
- foreach(inher, inhRelnames)
- {
- Value *inh = lfirst(inher);
- int count;
-
- Assert(IsA(inh, String));
- rel = heap_openr(strVal(inh), AccessShareLock);
- if (rel->rd_rel->relkind != RELKIND_RELATION)
- elog(ERROR, "inherited table \"%s\" is not a relation",
- strVal(inh));
- for (count = 0; count < rel->rd_att->natts; count++)
+ foreach(inher, inhRelnames)
{
- char *name = NameStr(rel->rd_att->attrs[count]->attname);
-
- if (strcmp(fkattr->name, name) == 0)
+ Value *inh = lfirst(inher);
+ int count;
+
+ Assert(IsA(inh, String));
+ rel = heap_openr(strVal(inh), AccessShareLock);
+ if (rel->rd_rel->relkind != RELKIND_RELATION)
+ elog(ERROR, "inherited table \"%s\" is not a relation",
+ strVal(inh));
+ for (count = 0; count < rel->rd_att->natts; count++)
{
- found = 1;
- break;
+ char *name = NameStr(rel->rd_att->attrs[count]->attname);
+
+ if (strcmp(fkattr->name, name) == 0)
+ {
+ fktypoid[attnum++]=rel->rd_att->attrs[count]->atttypid;
+ found = 1;
+ break;
+ }
}
+ heap_close(rel, NoLock);
+ if (found)
+ break;
}
- heap_close(rel, NoLock);
- if (found)
- break;
}
+ if (!found)
+ break;
}
- else
- found = 1;
if (!found)
elog(ERROR, "columns referenced in foreign key constraint not found.");
}
if (fkconstraint->fk_attrs != NIL && fkconstraint->pk_attrs == NIL)
{
if (strcmp(fkconstraint->pktable_name, stmt->relname) != 0)
- transformFkeyGetPrimaryKey(fkconstraint);
+ transformFkeyGetPrimaryKey(fkconstraint, pktypoid);
else if (pkey != NULL)
{
List *pkey_attr = pkey->indexParams;
List *attr;
+ List *findattr;
IndexElem *ielem;
Ident *pkattr;
+ int attnum=0;
+ ColumnDef *col;
foreach(attr, pkey_attr)
{
pkattr->indirection = NIL;
pkattr->isRel = false;
fkconstraint->pk_attrs = lappend(fkconstraint->pk_attrs, pkattr);
+ foreach (findattr, stmt->tableElts) {
+ col=lfirst(findattr);
+ if (strcmp(col->colname, ielem->name)==0) {
+ char *buff=TypeNameToInternalName(col->typename);
+ Oid type=typenameTypeId(buff);
+ if (!OidIsValid(type)) {
+ elog(ERROR, "Unable to lookup type %s", col->typename->name);
+ }
+ pktypoid[attnum++]=type; /* need to convert typename */
+ break;
+ }
+ }
}
}
else
else
{
if (strcmp(fkconstraint->pktable_name, stmt->relname) != 0)
- transformFkeyCheckAttrs(fkconstraint);
+ transformFkeyCheckAttrs(fkconstraint, pktypoid);
else
{
/* Get a unique/pk constraint from above */
IndexElem *indparm;
List *indparms;
List *pkattrs;
+ List *findattr;
+ ColumnDef *col;
Ident *pkattr;
if (ind->unique)
{
int count = 0;
+ int attnum=0;
foreach(indparms, ind->indexParams)
count++;
indparm = lfirst(indparms);
if (strcmp(indparm->name, pkattr->name) == 0)
{
- found = 1;
+ foreach (findattr, stmt->tableElts) {
+ col=lfirst(findattr);
+ if (strcmp(col->colname, indparm->name)==0) {
+ char *buff=TypeNameToInternalName(col->typename);
+ Oid type=typenameTypeId(buff);
+ if (!OidIsValid(type)) {
+ elog(ERROR, "Unable to lookup type %s", col->typename->name);
+ }
+ pktypoid[attnum++]=type;
+ found=1;
+ break;
+ }
+ }
+ if (!found) {
+ List *inher;
+ List *inhRelnames=stmt->inhRelnames;
+ Relation rel;
+ foreach (inher, inhRelnames) {
+ Value *inh=lfirst(inher);
+ int count;
+ Assert(IsA(inh, String));
+ rel=heap_openr(strVal(inh), AccessShareLock);
+ if (rel->rd_rel->relkind!=RELKIND_RELATION)
+ elog(ERROR, "inherited table \"%s\" is not a relation", strVal(inh));
+ for (count=0; count<rel->rd_att->natts; count++) {
+ char *name=NameStr(rel->rd_att->attrs[count]->attname);
+ if (strcmp(pkattr->name, name)==0) {
+ pktypoid[attnum++]=rel->rd_att->attrs[count]->atttypid;
+ found=1;
+ break;
+ }
+ }
+ heap_close(rel, NoLock);
+ if (found)
+ break;
+ }
+ }
break;
}
}
}
}
+ for (i = 0; i < INDEX_MAX_KEYS && fktypoid[i] != 0; i++) {
+ /*
+ * fktypoid[i] is the foreign key table's i'th element's type oid
+ * pktypoid[i] is the primary key table's i'th element's type oid
+ * We let oper() do our work for us, including elog(ERROR) if the
+ * types don't compare with =
+ */
+ Operator o=oper("=", fktypoid[i], pktypoid[i], false);
+ ReleaseSysCache(o);
+ }
/*
* Build a CREATE CONSTRAINT TRIGGER statement for the CHECK
* action.
* omitted, lookup for the definition of the primary key
*
*/
- if (fkconstraint->fk_attrs != NIL && fkconstraint->pk_attrs == NIL)
- transformFkeyGetPrimaryKey(fkconstraint);
+ if (fkconstraint->fk_attrs != NIL && fkconstraint->pk_attrs == NIL) {
+ Oid pktypoid[INDEX_MAX_KEYS];
+ transformFkeyGetPrimaryKey(fkconstraint, pktypoid);
+ }
/*
* Build a CREATE CONSTRAINT TRIGGER statement for the
*
*/
static void
-transformFkeyCheckAttrs(FkConstraint *fkconstraint)
+transformFkeyCheckAttrs(FkConstraint *fkconstraint, Oid *pktypoid)
{
Relation pkrel;
Form_pg_attribute *pkrel_attrs;
if (indexStruct->indisunique)
{
List *attrl;
+ int attnum=0;
for (i = 0; i < INDEX_MAX_KEYS && indexStruct->indkey[i] != 0; i++);
if (i != length(fkconstraint->pk_attrs))
if (strcmp(name, attr->name) == 0)
{
+ pktypoid[attnum++]=pkrel_attrs[pkattno-1]->atttypid;
found = true;
break;
}
*
*/
static void
-transformFkeyGetPrimaryKey(FkConstraint *fkconstraint)
+transformFkeyGetPrimaryKey(FkConstraint *fkconstraint, Oid *pktypoid)
{
Relation pkrel;
Form_pg_attribute *pkrel_attrs;
HeapTuple indexTuple = NULL;
Form_pg_index indexStruct = NULL;
int i;
+ int attnum=0;
/*
* Open the referenced table and get the attributes list
NameGetDatum(&(pkrel_attrs[pkattno - 1]->attname))));
pkattr->indirection = NIL;
pkattr->isRel = false;
+ pktypoid[attnum++]=pkrel_attrs[pkattno-1]->atttypid;
fkconstraint->pk_attrs = lappend(fkconstraint->pk_attrs, pkattr);
}
NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "tmp2"
NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "tmp2"
DROP TABLE tmp2;
+-- Foreign key adding test with mixed types
+CREATE TABLE PKTABLE (ptest1 int PRIMARY KEY);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+CREATE TABLE FKTABLE (ftest1 text);
+-- This next should fail, because text=int does not exist
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
+NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+-- This should also fail for the same reason, but here we
+-- give the column name
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable(ptest1);
+NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+-- This should succeed, even though they are different types
+-- because varchar=int does exist
+DROP TABLE FKTABLE;
+CREATE TABLE FKTABLE (ftest1 varchar);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
+NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
+-- As should this
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable(ptest1);
+NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
+DROP TABLE pktable;
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "fktable"
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "fktable"
+DROP TABLE fktable;
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, PRIMARY KEY(ptest1, ptest2));
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+-- This should fail, because we just chose really odd types
+CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable;
+NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'cidr' and 'int4'
+ You will have to retype this query using an explicit cast
+-- Again, so should this...
+DROP TABLE FKTABLE;
+CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable(ptest1, ptest2);
+NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'cidr' and 'int4'
+ You will have to retype this query using an explicit cast
+-- This fails because we mixed up the column ordering
+DROP TABLE FKTABLE;
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable(ptest2, ptest1);
+NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'int4' and 'text'
+ You will have to retype this query using an explicit cast
+-- As does this...
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest2, ftest1) references pktable(ptest1, ptest2);
+NOTICE: ALTER TABLE ... ADD CONSTRAINT will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+DROP TABLE FKTABLE;
+DROP TABLE PKTABLE;
DROP TABLE FKTABLE_FAIL1;
ERROR: table "fktable_fail1" does not exist
DROP TABLE PKTABLE;
+--
+-- Tests for mismatched types
+--
+-- Basic one column, two table setup
+CREATE TABLE PKTABLE (ptest1 int PRIMARY KEY);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+-- This next should fail, because text=int does not exist
+CREATE TABLE FKTABLE (ftest1 text REFERENCES pktable);
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+-- This should also fail for the same reason, but here we
+-- give the column name
+CREATE TABLE FKTABLE (ftest1 text REFERENCES pktable(ptest1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+-- This should succeed, even though they are different types
+-- because varchar=int does exist
+CREATE TABLE FKTABLE (ftest1 varchar REFERENCES pktable);
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+DROP TABLE FKTABLE;
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+-- As should this
+CREATE TABLE FKTABLE (ftest1 varchar REFERENCES pktable(ptest1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+DROP TABLE FKTABLE;
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+DROP TABLE PKTABLE;
+-- Two columns, two tables
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, PRIMARY KEY(ptest1, ptest2));
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+-- This should fail, because we just chose really odd types
+CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime, FOREIGN KEY(ftest1, ftest2) REFERENCES pktable);
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'cidr' and 'int4'
+ You will have to retype this query using an explicit cast
+-- Again, so should this...
+CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime, FOREIGN KEY(ftest1, ftest2) REFERENCES pktable(ptest1, ptest2));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'cidr' and 'int4'
+ You will have to retype this query using an explicit cast
+-- This fails because we mixed up the column ordering
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest2, ftest1) REFERENCES pktable);
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+-- As does this...
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest2, ftest1) REFERENCES pktable(ptest1, ptest2));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+-- And again..
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest1, ftest2) REFERENCES pktable(ptest2, ptest1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'int4' and 'text'
+ You will have to retype this query using an explicit cast
+-- This works...
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest2, ftest1) REFERENCES pktable(ptest2, ptest1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+DROP TABLE FKTABLE;
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+-- As does this
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest1, ftest2) REFERENCES pktable(ptest1, ptest2));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+DROP TABLE FKTABLE;
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+DROP TABLE PKTABLE;
+-- Two columns, same table
+-- Make sure this still works...
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest3,
+ptest4) REFERENCES pktable(ptest1, ptest2));
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+DROP TABLE PKTABLE;
+-- And this,
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest3,
+ptest4) REFERENCES pktable);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+DROP TABLE PKTABLE;
+-- This shouldn't (mixed up columns)
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest3,
+ptest4) REFERENCES pktable(ptest2, ptest1));
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'int4' and 'text'
+ You will have to retype this query using an explicit cast
+-- Nor should this... (same reason, we have 4,3 referencing 1,2 which mismatches types
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest4,
+ptest3) REFERENCES pktable(ptest1, ptest2));
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+-- Not this one either... Same as the last one except we didn't defined the columns being referenced.
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest4,
+ptest3) REFERENCES pktable);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+--
+-- Now some cases with inheritance
+-- Basic 2 table case: 1 column of matching types.
+create table pktable_base (base1 int not null);
+create table pktable (ptest1 int, primary key(base1), unique(base1, ptest1)) inherits (pktable_base);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE/UNIQUE will create implicit index 'pktable_base1_key' for table 'pktable'
+create table fktable (ftest1 int references pktable(base1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+-- now some ins, upd, del
+insert into pktable(base1) values (1);
+insert into pktable(base1) values (2);
+-- let's insert a non-existant fktable value
+insert into fktable(ftest1) values (3);
+ERROR: <unnamed> referential integrity violation - key referenced from fktable not found in pktable
+-- let's make a valid row for that
+insert into pktable(base1) values (3);
+insert into fktable(ftest1) values (3);
+-- let's try removing a row that should fail from pktable
+delete from pktable where base1>2;
+ERROR: <unnamed> referential integrity violation - key in pktable still referenced from fktable
+-- okay, let's try updating all of the base1 values to *4
+-- which should fail.
+update pktable set base1=base1*4;
+ERROR: <unnamed> referential integrity violation - key in pktable still referenced from fktable
+-- okay, let's try an update that should work.
+update pktable set base1=base1*4 where base1<3;
+-- and a delete that should work
+delete from pktable where base1>3;
+-- cleanup
+drop table fktable;
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+delete from pktable;
+-- Now 2 columns 2 tables, matching types
+create table fktable (ftest1 int, ftest2 int, foreign key(ftest1, ftest2) references pktable(base1, ptest1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+-- now some ins, upd, del
+insert into pktable(base1, ptest1) values (1, 1);
+insert into pktable(base1, ptest1) values (2, 2);
+-- let's insert a non-existant fktable value
+insert into fktable(ftest1, ftest2) values (3, 1);
+ERROR: <unnamed> referential integrity violation - key referenced from fktable not found in pktable
+-- let's make a valid row for that
+insert into pktable(base1,ptest1) values (3, 1);
+insert into fktable(ftest1, ftest2) values (3, 1);
+-- let's try removing a row that should fail from pktable
+delete from pktable where base1>2;
+ERROR: <unnamed> referential integrity violation - key in pktable still referenced from fktable
+-- okay, let's try updating all of the base1 values to *4
+-- which should fail.
+update pktable set base1=base1*4;
+ERROR: <unnamed> referential integrity violation - key in pktable still referenced from fktable
+-- okay, let's try an update that should work.
+update pktable set base1=base1*4 where base1<3;
+-- and a delete that should work
+delete from pktable where base1>3;
+-- cleanup
+drop table fktable;
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+NOTICE: DROP TABLE implicitly drops referential integrity trigger from table "pktable"
+drop table pktable;
+drop table pktable_base;
+-- Now we'll do one all in 1 table with 2 columns of matching types
+create table pktable_base(base1 int not null, base2 int);
+create table pktable(ptest1 int, ptest2 int, primary key(base1, ptest1), foreign key(base2, ptest2) references
+ pktable(base1, ptest1)) inherits (pktable_base);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+insert into pktable (base1, ptest1, base2, ptest2) values (1, 1, 1, 1);
+insert into pktable (base1, ptest1, base2, ptest2) values (2, 1, 1, 1);
+insert into pktable (base1, ptest1, base2, ptest2) values (2, 2, 2, 1);
+insert into pktable (base1, ptest1, base2, ptest2) values (1, 3, 2, 2);
+-- fails (3,2) isn't in base1, ptest1
+insert into pktable (base1, ptest1, base2, ptest2) values (2, 3, 3, 2);
+ERROR: <unnamed> referential integrity violation - key referenced from pktable not found in pktable
+-- fails (2,2) is being referenced
+delete from pktable where base1=2;
+ERROR: <unnamed> referential integrity violation - key in pktable still referenced from pktable
+-- fails (1,1) is being referenced (twice)
+update pktable set base1=3 where base1=1;
+ERROR: <unnamed> referential integrity violation - key in pktable still referenced from pktable
+-- this sequence of two deletes will work, since after the first there will be no (2,*) references
+delete from pktable where base2=2;
+delete from pktable where base1=2;
+drop table pktable;
+drop table pktable_base;
+-- 2 columns (2 tables), mismatched types
+create table pktable_base(base1 int not null);
+create table pktable(ptest1 text, primary key(base1, ptest1)) inherits (pktable_base);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+-- just generally bad types (with and without column references on the referenced table)
+create table fktable(ftest1 cidr, ftest2 int[], foreign key (ftest1, ftest2) references pktable);
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'cidr' and 'int4'
+ You will have to retype this query using an explicit cast
+create table fktable(ftest1 cidr, ftest2 int[], foreign key (ftest1, ftest2) references pktable(base1, ptest1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'cidr' and 'int4'
+ You will have to retype this query using an explicit cast
+-- let's mix up which columns reference which
+create table fktable(ftest1 int, ftest2 text, foreign key(ftest2, ftest1) references pktable);
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+create table fktable(ftest1 int, ftest2 text, foreign key(ftest2, ftest1) references pktable(base1, ptest1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+create table fktable(ftest1 int, ftest2 text, foreign key(ftest1, ftest2) references pktable(ptest1, base1));
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'int4' and 'text'
+ You will have to retype this query using an explicit cast
+drop table pktable;
+drop table pktable_base;
+-- 2 columns (1 table), mismatched types
+create table pktable_base(base1 int not null, base2 int);
+create table pktable(ptest1 text, ptest2 text[], primary key(base1, ptest1), foreign key(base2, ptest2) references
+ pktable(base1, ptest1)) inherits (pktable_base);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types '_text' and 'text'
+ You will have to retype this query using an explicit cast
+create table pktable(ptest1 text, ptest2 text, primary key(base1, ptest1), foreign key(base2, ptest2) references
+ pktable(ptest1, base1)) inherits (pktable_base);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'int4' and 'text'
+ You will have to retype this query using an explicit cast
+create table pktable(ptest1 text, ptest2 text, primary key(base1, ptest1), foreign key(ptest2, base2) references
+ pktable(base1, ptest1)) inherits (pktable_base);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+create table pktable(ptest1 text, ptest2 text, primary key(base1, ptest1), foreign key(ptest2, base2) references
+ pktable(base1, ptest1)) inherits (pktable_base);
+NOTICE: CREATE TABLE/PRIMARY KEY will create implicit index 'pktable_pkey' for table 'pktable'
+NOTICE: CREATE TABLE will create implicit trigger(s) for FOREIGN KEY check(s)
+ERROR: Unable to identify an operator '=' for types 'text' and 'int4'
+ You will have to retype this query using an explicit cast
+drop table pktable;
+ERROR: table "pktable" does not exist
+drop table pktable_base;
DROP TABLE tmp2;
+-- Foreign key adding test with mixed types
+
+CREATE TABLE PKTABLE (ptest1 int PRIMARY KEY);
+CREATE TABLE FKTABLE (ftest1 text);
+-- This next should fail, because text=int does not exist
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
+-- This should also fail for the same reason, but here we
+-- give the column name
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable(ptest1);
+-- This should succeed, even though they are different types
+-- because varchar=int does exist
+DROP TABLE FKTABLE;
+CREATE TABLE FKTABLE (ftest1 varchar);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable;
+-- As should this
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1) references pktable(ptest1);
+DROP TABLE pktable;
+DROP TABLE fktable;
+
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, PRIMARY KEY(ptest1, ptest2));
+-- This should fail, because we just chose really odd types
+CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable;
+-- Again, so should this...
+DROP TABLE FKTABLE;
+CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable(ptest1, ptest2);
+-- This fails because we mixed up the column ordering
+DROP TABLE FKTABLE;
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text);
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest1, ftest2) references pktable(ptest2, ptest1);
+-- As does this...
+ALTER TABLE FKTABLE ADD FOREIGN KEY(ftest2, ftest1) references pktable(ptest1, ptest2);
+
+DROP TABLE FKTABLE;
+DROP TABLE PKTABLE;
DROP TABLE FKTABLE_FAIL1;
DROP TABLE PKTABLE;
+
+--
+-- Tests for mismatched types
+--
+-- Basic one column, two table setup
+CREATE TABLE PKTABLE (ptest1 int PRIMARY KEY);
+-- This next should fail, because text=int does not exist
+CREATE TABLE FKTABLE (ftest1 text REFERENCES pktable);
+-- This should also fail for the same reason, but here we
+-- give the column name
+CREATE TABLE FKTABLE (ftest1 text REFERENCES pktable(ptest1));
+-- This should succeed, even though they are different types
+-- because varchar=int does exist
+CREATE TABLE FKTABLE (ftest1 varchar REFERENCES pktable);
+DROP TABLE FKTABLE;
+-- As should this
+CREATE TABLE FKTABLE (ftest1 varchar REFERENCES pktable(ptest1));
+DROP TABLE FKTABLE;
+DROP TABLE PKTABLE;
+
+-- Two columns, two tables
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, PRIMARY KEY(ptest1, ptest2));
+-- This should fail, because we just chose really odd types
+CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime, FOREIGN KEY(ftest1, ftest2) REFERENCES pktable);
+-- Again, so should this...
+CREATE TABLE FKTABLE (ftest1 cidr, ftest2 datetime, FOREIGN KEY(ftest1, ftest2) REFERENCES pktable(ptest1, ptest2));
+-- This fails because we mixed up the column ordering
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest2, ftest1) REFERENCES pktable);
+-- As does this...
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest2, ftest1) REFERENCES pktable(ptest1, ptest2));
+-- And again..
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest1, ftest2) REFERENCES pktable(ptest2, ptest1));
+-- This works...
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest2, ftest1) REFERENCES pktable(ptest2, ptest1));
+DROP TABLE FKTABLE;
+-- As does this
+CREATE TABLE FKTABLE (ftest1 int, ftest2 text, FOREIGN KEY(ftest1, ftest2) REFERENCES pktable(ptest1, ptest2));
+DROP TABLE FKTABLE;
+DROP TABLE PKTABLE;
+
+-- Two columns, same table
+-- Make sure this still works...
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest3,
+ptest4) REFERENCES pktable(ptest1, ptest2));
+DROP TABLE PKTABLE;
+-- And this,
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest3,
+ptest4) REFERENCES pktable);
+DROP TABLE PKTABLE;
+-- This shouldn't (mixed up columns)
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest3,
+ptest4) REFERENCES pktable(ptest2, ptest1));
+-- Nor should this... (same reason, we have 4,3 referencing 1,2 which mismatches types
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest4,
+ptest3) REFERENCES pktable(ptest1, ptest2));
+-- Not this one either... Same as the last one except we didn't defined the columns being referenced.
+CREATE TABLE PKTABLE (ptest1 int, ptest2 text, ptest3 int, ptest4 text, PRIMARY KEY(ptest1, ptest2), FOREIGN KEY(ptest4,
+ptest3) REFERENCES pktable);
+
+--
+-- Now some cases with inheritance
+-- Basic 2 table case: 1 column of matching types.
+create table pktable_base (base1 int not null);
+create table pktable (ptest1 int, primary key(base1), unique(base1, ptest1)) inherits (pktable_base);
+create table fktable (ftest1 int references pktable(base1));
+-- now some ins, upd, del
+insert into pktable(base1) values (1);
+insert into pktable(base1) values (2);
+-- let's insert a non-existant fktable value
+insert into fktable(ftest1) values (3);
+-- let's make a valid row for that
+insert into pktable(base1) values (3);
+insert into fktable(ftest1) values (3);
+-- let's try removing a row that should fail from pktable
+delete from pktable where base1>2;
+-- okay, let's try updating all of the base1 values to *4
+-- which should fail.
+update pktable set base1=base1*4;
+-- okay, let's try an update that should work.
+update pktable set base1=base1*4 where base1<3;
+-- and a delete that should work
+delete from pktable where base1>3;
+-- cleanup
+drop table fktable;
+delete from pktable;
+
+-- Now 2 columns 2 tables, matching types
+create table fktable (ftest1 int, ftest2 int, foreign key(ftest1, ftest2) references pktable(base1, ptest1));
+-- now some ins, upd, del
+insert into pktable(base1, ptest1) values (1, 1);
+insert into pktable(base1, ptest1) values (2, 2);
+-- let's insert a non-existant fktable value
+insert into fktable(ftest1, ftest2) values (3, 1);
+-- let's make a valid row for that
+insert into pktable(base1,ptest1) values (3, 1);
+insert into fktable(ftest1, ftest2) values (3, 1);
+-- let's try removing a row that should fail from pktable
+delete from pktable where base1>2;
+-- okay, let's try updating all of the base1 values to *4
+-- which should fail.
+update pktable set base1=base1*4;
+-- okay, let's try an update that should work.
+update pktable set base1=base1*4 where base1<3;
+-- and a delete that should work
+delete from pktable where base1>3;
+-- cleanup
+drop table fktable;
+drop table pktable;
+drop table pktable_base;
+
+-- Now we'll do one all in 1 table with 2 columns of matching types
+create table pktable_base(base1 int not null, base2 int);
+create table pktable(ptest1 int, ptest2 int, primary key(base1, ptest1), foreign key(base2, ptest2) references
+ pktable(base1, ptest1)) inherits (pktable_base);
+insert into pktable (base1, ptest1, base2, ptest2) values (1, 1, 1, 1);
+insert into pktable (base1, ptest1, base2, ptest2) values (2, 1, 1, 1);
+insert into pktable (base1, ptest1, base2, ptest2) values (2, 2, 2, 1);
+insert into pktable (base1, ptest1, base2, ptest2) values (1, 3, 2, 2);
+-- fails (3,2) isn't in base1, ptest1
+insert into pktable (base1, ptest1, base2, ptest2) values (2, 3, 3, 2);
+-- fails (2,2) is being referenced
+delete from pktable where base1=2;
+-- fails (1,1) is being referenced (twice)
+update pktable set base1=3 where base1=1;
+-- this sequence of two deletes will work, since after the first there will be no (2,*) references
+delete from pktable where base2=2;
+delete from pktable where base1=2;
+drop table pktable;
+drop table pktable_base;
+
+-- 2 columns (2 tables), mismatched types
+create table pktable_base(base1 int not null);
+create table pktable(ptest1 text, primary key(base1, ptest1)) inherits (pktable_base);
+-- just generally bad types (with and without column references on the referenced table)
+create table fktable(ftest1 cidr, ftest2 int[], foreign key (ftest1, ftest2) references pktable);
+create table fktable(ftest1 cidr, ftest2 int[], foreign key (ftest1, ftest2) references pktable(base1, ptest1));
+-- let's mix up which columns reference which
+create table fktable(ftest1 int, ftest2 text, foreign key(ftest2, ftest1) references pktable);
+create table fktable(ftest1 int, ftest2 text, foreign key(ftest2, ftest1) references pktable(base1, ptest1));
+create table fktable(ftest1 int, ftest2 text, foreign key(ftest1, ftest2) references pktable(ptest1, base1));
+drop table pktable;
+drop table pktable_base;
+
+-- 2 columns (1 table), mismatched types
+create table pktable_base(base1 int not null, base2 int);
+create table pktable(ptest1 text, ptest2 text[], primary key(base1, ptest1), foreign key(base2, ptest2) references
+ pktable(base1, ptest1)) inherits (pktable_base);
+create table pktable(ptest1 text, ptest2 text, primary key(base1, ptest1), foreign key(base2, ptest2) references
+ pktable(ptest1, base1)) inherits (pktable_base);
+create table pktable(ptest1 text, ptest2 text, primary key(base1, ptest1), foreign key(ptest2, base2) references
+ pktable(base1, ptest1)) inherits (pktable_base);
+create table pktable(ptest1 text, ptest2 text, primary key(base1, ptest1), foreign key(ptest2, base2) references
+ pktable(base1, ptest1)) inherits (pktable_base);
+drop table pktable;
+drop table pktable_base;
+
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