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SQL:2008 syntax CURRENT_CATALOG, CURRENT_SCHEMA, SET CATALOG, SET SCHEMA.

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This commit is contained in:
Peter Eisentraut
2008-10-27 09:37:47 +00:00
parent b1eeeb20d9
commit 0fec77ae88
6 changed files with 97 additions and 16 deletions
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48
src/backend/parser/gram.y
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@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.629 2008/10/27 08:47:14 petere Exp $
* $PostgreSQL: pgsql/src/backend/parser/gram.y,v 2.630 2008/10/27 09:37:47 petere Exp $
*
* HISTORY
* AUTHOR DATE MAJOR EVENT
@@ -401,12 +401,13 @@ static TypeName *TableFuncTypeName(List *columns);
BACKWARD BEFORE BEGIN_P BETWEEN BIGINT BINARY BIT
BOOLEAN_P BOTH BY
CACHE CALLED CASCADE CASCADED CASE CAST CHAIN CHAR_P
CACHE CALLED CASCADE CASCADED CASE CAST CATALOG_P CHAIN CHAR_P
CHARACTER CHARACTERISTICS CHECK CHECKPOINT CLASS CLOSE
CLUSTER COALESCE COLLATE COLUMN COMMENT COMMIT
COMMITTED CONCURRENTLY CONFIGURATION CONNECTION CONSTRAINT CONSTRAINTS
CONTENT_P CONTINUE_P CONVERSION_P COPY COST CREATE CREATEDB
CREATEROLE CREATEUSER CROSS CSV CTYPE CURRENT_P CURRENT_DATE CURRENT_ROLE
CREATEROLE CREATEUSER CROSS CSV CTYPE CURRENT_P
CURRENT_CATALOG CURRENT_DATE CURRENT_ROLE CURRENT_SCHEMA
CURRENT_TIME CURRENT_TIMESTAMP CURRENT_USER CURSOR CYCLE
DATA_P DATABASE DAY_P DEALLOCATE DEC DECIMAL_P DECLARE DEFAULT DEFAULTS
@@ -1133,6 +1134,22 @@ set_rest: /* Generic SET syntaxes: */
n->args = $5;
$$ = n;
}
| CATALOG_P Sconst
{
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("current database cannot be changed"),
scanner_errposition(@2)));
$$ = NULL; /*not reached*/
}
| SCHEMA Sconst
{
VariableSetStmt *n = makeNode(VariableSetStmt);
n->kind = VAR_SET_VALUE;
n->name = "search_path";
n->args = list_make1(makeStringConst($2, @2));
$$ = n;
}
| NAMES opt_encoding
{
VariableSetStmt *n = makeNode(VariableSetStmt);
@@ -8401,6 +8418,28 @@ func_expr: func_name '(' ')'
n->location = @1;
$$ = (Node *)n;
}
| CURRENT_CATALOG
{
FuncCall *n = makeNode(FuncCall);
n->funcname = SystemFuncName("current_database");
n->args = NIL;
n->agg_star = FALSE;
n->agg_distinct = FALSE;
n->func_variadic = FALSE;
n->location = @1;
$$ = (Node *)n;
}
| CURRENT_SCHEMA
{
FuncCall *n = makeNode(FuncCall);
n->funcname = SystemFuncName("current_schema");
n->args = NIL;
n->agg_star = FALSE;
n->agg_distinct = FALSE;
n->func_variadic = FALSE;
n->location = @1;
$$ = (Node *)n;
}
| CAST '(' a_expr AS Typename ')'
{ $$ = makeTypeCast($3, $5, @1); }
| EXTRACT '(' extract_list ')'
@@ -9336,6 +9375,7 @@ unreserved_keyword:
| CALLED
| CASCADE
| CASCADED
| CATALOG_P
| CHAIN
| CHARACTERISTICS
| CHECKPOINT
@@ -9625,6 +9665,7 @@ type_func_name_keyword:
| BETWEEN
| BINARY
| CROSS
| CURRENT_SCHEMA
| FREEZE
| FULL
| ILIKE
@@ -9667,6 +9708,7 @@ reserved_keyword:
| COLUMN
| CONSTRAINT
| CREATE
| CURRENT_CATALOG
| CURRENT_DATE
| CURRENT_ROLE
| CURRENT_TIME

5
src/backend/parser/keywords.c
View File

@@ -11,7 +11,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.204 2008/10/22 11:00:34 petere Exp $
* $PostgreSQL: pgsql/src/backend/parser/keywords.c,v 1.205 2008/10/27 09:37:47 petere Exp $
*
*-------------------------------------------------------------------------
*/
@@ -83,6 +83,7 @@ const ScanKeyword ScanKeywords[] = {
{"cascaded", CASCADED, UNRESERVED_KEYWORD},
{"case", CASE, RESERVED_KEYWORD},
{"cast", CAST, RESERVED_KEYWORD},
{"catalog", CATALOG_P, UNRESERVED_KEYWORD},
{"chain", CHAIN, UNRESERVED_KEYWORD},
{"char", CHAR_P, COL_NAME_KEYWORD},
{"character", CHARACTER, COL_NAME_KEYWORD},
@@ -116,8 +117,10 @@ const ScanKeyword ScanKeywords[] = {
{"csv", CSV, UNRESERVED_KEYWORD},
{"ctype", CTYPE, UNRESERVED_KEYWORD},
{"current", CURRENT_P, UNRESERVED_KEYWORD},
{"current_catalog", CURRENT_CATALOG, RESERVED_KEYWORD},
{"current_date", CURRENT_DATE, RESERVED_KEYWORD},
{"current_role", CURRENT_ROLE, RESERVED_KEYWORD},
{"current_schema", CURRENT_SCHEMA, TYPE_FUNC_NAME_KEYWORD},
{"current_time", CURRENT_TIME, RESERVED_KEYWORD},
{"current_timestamp", CURRENT_TIMESTAMP, RESERVED_KEYWORD},
{"current_user", CURRENT_USER, RESERVED_KEYWORD},