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Support specifying PRIMARY KEY for the SERIAL type.

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Check for a constraint if is_sequence is set and omit making
 a UNIQUE index if so, since the primary key will cover that for us.
This commit is contained in:
Thomas G. Lockhart 1998-09-16 14:25:37 +00:00
parent 198bcef025
commit 7c30ac961f
1 changed files with 16 additions and 7 deletions
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23
src/backend/parser/analyze.c
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@ -7,7 +7,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.86 1998/09/03 14:21:06 thomas Exp $ * $Header: /cvsroot/pgsql/src/backend/parser/analyze.c,v 1.87 1998/09/16 14:25:37 thomas Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -530,11 +530,26 @@ transformCreateStmt(ParseState *pstate, CreateStmt *stmt)
constraint->def = cstring; constraint->def = cstring;
constraint->keys = NULL; constraint->keys = NULL;
/* The parser only allows PRIMARY KEY as a constraint for the SERIAL type.
* So, if there is a constraint of any kind, assume it is that.
* If PRIMARY KEY is specified, then don't need to gin up a UNIQUE constraint
* since that will be covered already.
* - thomas 1998-09-15
*/
if (column->constraints != NIL) if (column->constraints != NIL)
{
column->constraints = lappend(column->constraints, constraint); column->constraints = lappend(column->constraints, constraint);
}
else else
{
column->constraints = lcons(constraint, NIL); column->constraints = lcons(constraint, NIL);
constraint = makeNode(Constraint);
constraint->contype = CONSTR_UNIQUE;
constraint->name = makeTableName(stmt->relname, column->colname, "key", NULL);
column->constraints = lappend(column->constraints, constraint);
}
sequence = makeNode(CreateSeqStmt); sequence = makeNode(CreateSeqStmt);
sequence->seqname = pstrdup(constraint->name); sequence->seqname = pstrdup(constraint->name);
sequence->options = NIL; sequence->options = NIL;
@ -543,12 +558,6 @@ transformCreateStmt(ParseState *pstate, CreateStmt *stmt)
sequence->seqname, stmt->relname, column->colname); sequence->seqname, stmt->relname, column->colname);
ilist = lcons(sequence, NIL); ilist = lcons(sequence, NIL);
constraint = makeNode(Constraint);
constraint->contype = CONSTR_UNIQUE;
constraint->name = makeTableName(stmt->relname, column->colname, "key", NULL);
column->constraints = lappend(column->constraints, constraint);
} }
if (column->constraints != NIL) if (column->constraints != NIL)