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Add WITH [NO] DATA clause to CREATE TABLE AS, per SQL.

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Also, since WITH is now a reserved word, simplify the token merging code to
only deal with WITH_TIME.

by Tom Lane and myself
This commit is contained in:
Peter Eisentraut
2008-10-28 14:09:45 +00:00
parent 53a5026b5c
commit 8ecd535169
6 changed files with 49 additions and 65 deletions
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21
src/backend/parser/parser.c
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@ -14,7 +14,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/parser.c,v 1.74 2008/08/29 13:02:32 petere Exp $
* $PostgreSQL: pgsql/src/backend/parser/parser.c,v 1.75 2008/10/28 14:09:45 petere Exp $
*
*-------------------------------------------------------------------------
*/
@ -129,28 +129,15 @@ filtered_base_yylex(void)
case WITH:
/*
* WITH CASCADED, LOCAL, or CHECK must be reduced to one token
*
* XXX an alternative way is to recognize just WITH_TIME and put
* the ugliness into the datetime datatype productions instead of
* WITH CHECK OPTION. However that requires promoting WITH to a
* fully reserved word. If we ever have to do that anyway
* (perhaps for SQL99 recursive queries), come back and simplify
* this code.
* WITH TIME must be reduced to one token
*/
cur_yylval = base_yylval;
cur_yylloc = base_yylloc;
next_token = base_yylex();
switch (next_token)
{
case CASCADED:
cur_token = WITH_CASCADED;
break;
case LOCAL:
cur_token = WITH_LOCAL;
break;
case CHECK:
cur_token = WITH_CHECK;
case TIME:
cur_token = WITH_TIME;
break;
default:
/* save the lookahead token for next time */