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Allow SQL:2008 syntax ALTER TABLE ... ALTER COLUMN ... SET DATA TYPE

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alongside our traditional syntax.
This commit is contained in:
Peter Eisentraut
2008-10-21 08:38:16 +00:00
parent 089ae3bc9a
commit 1471e3843d
9 changed files with 76 additions and 32 deletions
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19
src/backend/parser/gram.y
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.626 2008/10/20 14:26:28 petere Exp $
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.627 2008/10/21 08:38:15 petere Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -304,7 +304,7 @@ static TypeName *TableFuncTypeName(List *columns);
%type <boolean> copy_from
%type <ival> opt_column event cursor_options opt_hold
%type <ival> opt_column event cursor_options opt_hold opt_set_data
%type <objtype> reindex_type drop_type comment_type
%type <node> fetch_direction select_limit_value select_offset_value
@@ -407,7 +407,7 @@ static TypeName *TableFuncTypeName(List *columns);
CREATEROLE CREATEUSER CROSS CSV CTYPE CURRENT_P CURRENT_DATE CURRENT_ROLE
CURRENT_TIME CURRENT_TIMESTAMP CURRENT_USER CURSOR CYCLE
DATABASE DAY_P DEALLOCATE DEC DECIMAL_P DECLARE DEFAULT DEFAULTS
DATA_P DATABASE DAY_P DEALLOCATE DEC DECIMAL_P DECLARE DEFAULT DEFAULTS
DEFERRABLE DEFERRED DEFINER DELETE_P DELIMITER DELIMITERS DESC
DICTIONARY DISABLE_P DISCARD DISTINCT DO DOCUMENT_P DOMAIN_P DOUBLE_P DROP
@@ -1534,16 +1534,16 @@ alter_table_cmd:
$$ = (Node *)n;
}
/*
* ALTER TABLE <name> ALTER [COLUMN] <colname> TYPE <typename>
* ALTER TABLE <name> ALTER [COLUMN] <colname> [SET DATA] TYPE <typename>
* [ USING <expression> ]
*/
| ALTER opt_column ColId TYPE_P Typename alter_using
| ALTER opt_column ColId opt_set_data TYPE_P Typename alter_using
{
AlterTableCmd *n = makeNode(AlterTableCmd);
n->subtype = AT_AlterColumnType;
n->name = $3;
n->def = (Node *) $5;
n->transform = $6;
n->def = (Node *) $6;
n->transform = $7;
$$ = (Node *)n;
}
/* ALTER TABLE <name> ADD CONSTRAINT ... */
@@ -4854,6 +4854,10 @@ opt_column: COLUMN { $$ = COLUMN; }
| /*EMPTY*/ { $$ = 0; }
;
opt_set_data: SET DATA_P { $$ = 1; }
| /*EMPTY*/ { $$ = 0; }
;
/*****************************************************************************
*
* ALTER THING name SET SCHEMA name
@@ -9317,6 +9321,7 @@ unreserved_keyword:
| CURRENT_P
| CURSOR
| CYCLE
| DATA_P
| DATABASE
| DAY_P
| DEALLOCATE

3
src/backend/parser/keywords.c
View File

@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.202 2008/10/04 21:56:54 tgl Exp $
* $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.203 2008/10/21 08:38:15 petere Exp $
*
*-------------------------------------------------------------------------
*/
@@ -123,6 +123,7 @@ const ScanKeyword ScanKeywords[] = {
{"current_user", CURRENT_USER, RESERVED_KEYWORD},
{"cursor", CURSOR, UNRESERVED_KEYWORD},
{"cycle", CYCLE, UNRESERVED_KEYWORD},
{"data", DATA_P, UNRESERVED_KEYWORD},
{"database", DATABASE, UNRESERVED_KEYWORD},
{"day", DAY_P, UNRESERVED_KEYWORD},
{"deallocate", DEALLOCATE, UNRESERVED_KEYWORD},