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Change Constraint structure to be a full node structure. 

Add new constraint types PRIMARY, UNIQUE.
This commit is contained in:
Thomas G. Lockhart 1997-12-04 23:55:52 +00:00
parent 77356a7fc1
commit dc88e795d1
1 changed files with 70 additions and 67 deletions
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19
src/include/nodes/parsenodes.h
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@ -6,7 +6,7 @@
* *
* Copyright (c) 1994, Regents of the University of California * Copyright (c) 1994, Regents of the University of California
* *
* $Id: parsenodes.h,v 1.36 1997/12/04 00:28:03 scrappy Exp $ * $Id: parsenodes.h,v 1.37 1997/12/04 23:55:52 thomas Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -82,7 +82,7 @@ typedef struct AddAttrStmt
NodeTag type; NodeTag type;
char *relname; /* the relation to add attr */ char *relname; /* the relation to add attr */
bool inh; /* add recursively to children? */ bool inh; /* add recursively to children? */
struct ColumnDef *colDef; /* the attribute definition */ Node *colDef; /* the attribute definition */
} AddAttrStmt; } AddAttrStmt;
/* ---------------------- /* ----------------------
@ -130,23 +130,25 @@ typedef struct CreateStmt
{ {
NodeTag type; NodeTag type;
char *relname; /* the relation to create */ char *relname; /* the relation to create */
List *tableElts; /* column definitions list of ColumnDef */ List *tableElts; /* column definitions list of Column */
List *inhRelnames; /* relations to inherit from list of Value List *inhRelnames; /* relations to inherit from list of Value
* (string) */ * (string) */
List *constraints; /* list of constraints (ConstaintDef) */ List *constraints; /* list of constraints (ConstaintDef) */
} CreateStmt; } CreateStmt;
typedef enum ConstrType typedef enum ConstrType /* type of constaints */
{ {
CONSTR_NONE, CONSTR_CHECK /* type of constaints */ CONSTR_NONE, CONSTR_NOTNULL, CONSTR_DEFAULT, CONSTR_CHECK, CONSTR_PRIMARY, CONSTR_UNIQUE
} ConstrType; } ConstrType;
typedef struct ConstraintDef typedef struct Constraint
{ {
ConstrType type; NodeTag type;
ConstrType contype;
char *name; /* name */ char *name; /* name */
void *def; /* definition */ void *def; /* definition */
} ConstraintDef; void *keys; /* list of primary keys */
} Constraint;
/* ---------------------- /* ----------------------
* Create/Drop TRIGGER Statements * Create/Drop TRIGGER Statements
@ -725,6 +727,7 @@ typedef struct ColumnDef
TypeName *typename; /* type of column */ TypeName *typename; /* type of column */
bool is_not_null; /* flag to NOT NULL constraint */ bool is_not_null; /* flag to NOT NULL constraint */
char *defval; /* default value of column */ char *defval; /* default value of column */
List *constraints; /* constraints on column */
} ColumnDef; } ColumnDef;
/* /*