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Add new CREATE CONVERSION/DROP CONVERSION command.

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This is the first cut toward CREATE CONVERSION/DROP CONVERSION implementaion.
The commands can now add/remove tuples to the new pg_conversion system
catalog, but that's all. Still need work to make them actually working.
Documentations, regression tests also need work.
This commit is contained in:
Tatsuo Ishii
2002-07-11 07:39:28 +00:00
parent f2bb1cfa85
commit fcc962566a
19 changed files with 610 additions and 44 deletions
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37
src/backend/parser/gram.y
View File

@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.337 2002/07/06 20:16:35 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.338 2002/07/11 07:39:25 ishii Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -157,7 +157,7 @@ static void doNegateFloat(Value *v);
SelectStmt, TransactionStmt, TruncateStmt,
UnlistenStmt, UpdateStmt, VacuumStmt,
VariableResetStmt, VariableSetStmt, VariableShowStmt,
ViewStmt, CheckPointStmt
ViewStmt, CheckPointStmt, CreateConversionStmt
%type <node> select_no_parens, select_with_parens, select_clause,
simple_select
@@ -246,7 +246,7 @@ static void doNegateFloat(Value *v);
%type <boolean> opt_instead, opt_cursor
%type <boolean> index_opt_unique, opt_verbose, opt_full
%type <boolean> opt_freeze
%type <boolean> opt_freeze, opt_default
%type <defelt> opt_binary, opt_oids, copy_delimiter
%type <boolean> copy_from
@@ -335,7 +335,7 @@ static void doNegateFloat(Value *v);
CACHE, CALLED, CASCADE, CASE, CAST, CHAIN, CHAR_P,
CHARACTER, CHARACTERISTICS, CHECK, CHECKPOINT, CLOSE,
CLUSTER, COALESCE, COLLATE, COLUMN, COMMENT, COMMIT,
COMMITTED, CONSTRAINT, CONSTRAINTS, COPY, CREATE, CREATEDB,
COMMITTED, CONSTRAINT, CONSTRAINTS, CONVERSION_P, COPY, CREATE, CREATEDB,
CREATEUSER, CROSS, CURRENT_DATE, CURRENT_TIME,
CURRENT_TIMESTAMP, CURRENT_USER, CURSOR, CYCLE,
@@ -532,6 +532,7 @@ stmt :
| VariableResetStmt
| ConstraintsSetStmt
| CheckPointStmt
| CreateConversionStmt
| /*EMPTY*/
{ $$ = (Node *)NULL; }
;
@@ -2299,6 +2300,7 @@ drop_type: TABLE { $$ = DROP_TABLE; }
| INDEX { $$ = DROP_INDEX; }
| TYPE_P { $$ = DROP_TYPE; }
| DOMAIN_P { $$ = DROP_DOMAIN; }
| CONVERSION_P { $$ = DROP_CONVERSION; }
;
any_name_list:
@@ -3673,6 +3675,33 @@ opt_as: AS {}
;
/*****************************************************************************
*
* Manipulate a conversion
*
* CREATE [DEFAULT] CONVERSION <conversion_name>
* FOR <encoding_name> TO <encoding_name> FROM <func_name>
*
*****************************************************************************/
CreateConversionStmt:
CREATE opt_default CONVERSION_P any_name FOR Sconst
TO Sconst FROM any_name
{
CreateConversionStmt *n = makeNode(CreateConversionStmt);
n->conversion_name = $4;
n->for_encoding_name = $6;
n->to_encoding_name = $8;
n->func_name = $10;
n->def = $2;
$$ = (Node *)n;
}
;
opt_default: DEFAULT { $$ = TRUE; }
| /*EMPTY*/ { $$ = FALSE; }
;
/*****************************************************************************
*
* QUERY:

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

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.118 2002/07/04 15:24:01 thomas Exp $
* $Header: /cvsroot/pgsql/src/backend/parser/keywords.c,v 1.119 2002/07/11 07:39:26 ishii Exp $
*
*-------------------------------------------------------------------------
*/
@@ -78,6 +78,7 @@ static const ScanKeyword ScanKeywords[] = {
{"committed", COMMITTED},
{"constraint", CONSTRAINT},
{"constraints", CONSTRAINTS},
{"conversion", CONVERSION_P},
{"copy", COPY},
{"create", CREATE},
{"createdb", CREATEDB},