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ALTER <thing> [IF EXISTS] ... allows silent DDL if required,

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e.g. ALTER FOREIGN TABLE IF EXISTS foo RENAME TO bar

Pavel Stehule
This commit is contained in:
Simon Riggs
2012-01-23 23:25:04 +00:00
parent 4993a49b7c
commit b8a91d9d1c
19 changed files with 534 additions and 52 deletions
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216
src/backend/parser/gram.y
View File

@@ -1629,6 +1629,16 @@ AlterTableStmt:
n->relation = $3;
n->cmds = $4;
n->relkind = OBJECT_TABLE;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TABLE IF_P EXISTS relation_expr alter_table_cmds
{
AlterTableStmt *n = makeNode(AlterTableStmt);
n->relation = $5;
n->cmds = $6;
n->relkind = OBJECT_TABLE;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER INDEX qualified_name alter_table_cmds
@@ -1637,6 +1647,16 @@ AlterTableStmt:
n->relation = $3;
n->cmds = $4;
n->relkind = OBJECT_INDEX;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER INDEX IF_P EXISTS qualified_name alter_table_cmds
{
AlterTableStmt *n = makeNode(AlterTableStmt);
n->relation = $5;
n->cmds = $6;
n->relkind = OBJECT_INDEX;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER SEQUENCE qualified_name alter_table_cmds
@@ -1645,6 +1665,16 @@ AlterTableStmt:
n->relation = $3;
n->cmds = $4;
n->relkind = OBJECT_SEQUENCE;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER SEQUENCE IF_P EXISTS qualified_name alter_table_cmds
{
AlterTableStmt *n = makeNode(AlterTableStmt);
n->relation = $5;
n->cmds = $6;
n->relkind = OBJECT_SEQUENCE;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER VIEW qualified_name alter_table_cmds
@@ -1653,6 +1683,16 @@ AlterTableStmt:
n->relation = $3;
n->cmds = $4;
n->relkind = OBJECT_VIEW;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER VIEW IF_P EXISTS qualified_name alter_table_cmds
{
AlterTableStmt *n = makeNode(AlterTableStmt);
n->relation = $5;
n->cmds = $6;
n->relkind = OBJECT_VIEW;
n->missing_ok = true;
$$ = (Node *)n;
}
;
@@ -3068,8 +3108,18 @@ AlterSeqStmt:
AlterSeqStmt *n = makeNode(AlterSeqStmt);
n->sequence = $3;
n->options = $4;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER SEQUENCE IF_P EXISTS qualified_name SeqOptList
{
AlterSeqStmt *n = makeNode(AlterSeqStmt);
n->sequence = $5;
n->options = $6;
n->missing_ok = true;
$$ = (Node *)n;
}
;
OptSeqOptList: SeqOptList { $$ = $1; }
@@ -3906,6 +3956,16 @@ AlterForeignTableStmt:
n->relation = $4;
n->cmds = $5;
n->relkind = OBJECT_FOREIGN_TABLE;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER FOREIGN TABLE IF_P EXISTS relation_expr alter_table_cmds
{
AlterTableStmt *n = makeNode(AlterTableStmt);
n->relation = $6;
n->cmds = $7;
n->relkind = OBJECT_FOREIGN_TABLE;
n->missing_ok = true;
$$ = (Node *)n;
}
;
@@ -6417,6 +6477,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->object = $3;
n->objarg = $4;
n->newname = $7;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER COLLATION any_name RENAME TO name
@@ -6425,6 +6486,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_COLLATION;
n->object = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER CONVERSION_P any_name RENAME TO name
@@ -6433,6 +6495,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_CONVERSION;
n->object = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER DATABASE database_name RENAME TO database_name
@@ -6441,6 +6504,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_DATABASE;
n->subname = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER DOMAIN_P any_name RENAME TO name
@@ -6449,6 +6513,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_DOMAIN;
n->object = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER FOREIGN DATA_P WRAPPER name RENAME TO name
@@ -6457,6 +6522,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_FDW;
n->subname = $5;
n->newname = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER FUNCTION function_with_argtypes RENAME TO name
@@ -6466,6 +6532,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->object = $3->funcname;
n->objarg = $3->funcargs;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER GROUP_P RoleId RENAME TO RoleId
@@ -6474,6 +6541,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_ROLE;
n->subname = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER opt_procedural LANGUAGE name RENAME TO name
@@ -6482,6 +6550,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_LANGUAGE;
n->subname = $4;
n->newname = $7;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER OPERATOR CLASS any_name USING access_method RENAME TO name
@@ -6491,6 +6560,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->object = $4;
n->subname = $6;
n->newname = $9;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER OPERATOR FAMILY any_name USING access_method RENAME TO name
@@ -6500,6 +6570,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->object = $4;
n->subname = $6;
n->newname = $9;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER SCHEMA name RENAME TO name
@@ -6508,6 +6579,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_SCHEMA;
n->subname = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER SERVER name RENAME TO name
@@ -6516,6 +6588,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_FOREIGN_SERVER;
n->subname = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TABLE relation_expr RENAME TO name
@@ -6525,6 +6598,17 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->relation = $3;
n->subname = NULL;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TABLE IF_P EXISTS relation_expr RENAME TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->renameType = OBJECT_TABLE;
n->relation = $5;
n->subname = NULL;
n->newname = $8;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER SEQUENCE qualified_name RENAME TO name
@@ -6534,6 +6618,17 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->relation = $3;
n->subname = NULL;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER SEQUENCE IF_P EXISTS qualified_name RENAME TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->renameType = OBJECT_SEQUENCE;
n->relation = $5;
n->subname = NULL;
n->newname = $8;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER VIEW qualified_name RENAME TO name
@@ -6543,6 +6638,17 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->relation = $3;
n->subname = NULL;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER VIEW IF_P EXISTS qualified_name RENAME TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->renameType = OBJECT_VIEW;
n->relation = $5;
n->subname = NULL;
n->newname = $8;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER INDEX qualified_name RENAME TO name
@@ -6552,6 +6658,17 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->relation = $3;
n->subname = NULL;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER INDEX IF_P EXISTS qualified_name RENAME TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->renameType = OBJECT_INDEX;
n->relation = $5;
n->subname = NULL;
n->newname = $8;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER FOREIGN TABLE relation_expr RENAME TO name
@@ -6561,6 +6678,17 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->relation = $4;
n->subname = NULL;
n->newname = $7;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER FOREIGN TABLE IF_P EXISTS relation_expr RENAME TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->renameType = OBJECT_FOREIGN_TABLE;
n->relation = $6;
n->subname = NULL;
n->newname = $9;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER TABLE relation_expr RENAME opt_column name TO name
@@ -6571,6 +6699,18 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->relation = $3;
n->subname = $6;
n->newname = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TABLE IF_P EXISTS relation_expr RENAME opt_column name TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->renameType = OBJECT_COLUMN;
n->relationType = OBJECT_TABLE;
n->relation = $5;
n->subname = $8;
n->newname = $10;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER FOREIGN TABLE relation_expr RENAME opt_column name TO name
@@ -6581,6 +6721,18 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->relation = $4;
n->subname = $7;
n->newname = $9;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER FOREIGN TABLE IF_P EXISTS relation_expr RENAME opt_column name TO name
{
RenameStmt *n = makeNode(RenameStmt);
n->renameType = OBJECT_COLUMN;
n->relationType = OBJECT_FOREIGN_TABLE;
n->relation = $6;
n->subname = $9;
n->newname = $11;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER TRIGGER name ON qualified_name RENAME TO name
@@ -6590,6 +6742,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->relation = $5;
n->subname = $3;
n->newname = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER ROLE RoleId RENAME TO RoleId
@@ -6598,6 +6751,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_ROLE;
n->subname = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER USER RoleId RENAME TO RoleId
@@ -6606,6 +6760,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_ROLE;
n->subname = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TABLESPACE name RENAME TO name
@@ -6614,6 +6769,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_TABLESPACE;
n->subname = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TABLESPACE name SET reloptions
@@ -6640,6 +6796,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_TSPARSER;
n->object = $5;
n->newname = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TEXT_P SEARCH DICTIONARY any_name RENAME TO name
@@ -6648,6 +6805,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_TSDICTIONARY;
n->object = $5;
n->newname = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TEXT_P SEARCH TEMPLATE any_name RENAME TO name
@@ -6656,6 +6814,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_TSTEMPLATE;
n->object = $5;
n->newname = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TEXT_P SEARCH CONFIGURATION any_name RENAME TO name
@@ -6664,6 +6823,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_TSCONFIGURATION;
n->object = $5;
n->newname = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TYPE_P any_name RENAME TO name
@@ -6672,6 +6832,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->renameType = OBJECT_TYPE;
n->object = $3;
n->newname = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TYPE_P any_name RENAME ATTRIBUTE name TO name opt_drop_behavior
@@ -6683,6 +6844,7 @@ RenameStmt: ALTER AGGREGATE func_name aggr_args RENAME TO name
n->subname = $6;
n->newname = $8;
n->behavior = $9;
n->missing_ok = false;
$$ = (Node *)n;
}
;
@@ -6709,6 +6871,7 @@ AlterObjectSchemaStmt:
n->object = $3;
n->objarg = $4;
n->newschema = $7;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER COLLATION any_name SET SCHEMA name
@@ -6717,6 +6880,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_COLLATION;
n->object = $3;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER CONVERSION_P any_name SET SCHEMA name
@@ -6725,6 +6889,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_CONVERSION;
n->object = $3;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER DOMAIN_P any_name SET SCHEMA name
@@ -6733,6 +6898,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_DOMAIN;
n->object = $3;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER EXTENSION any_name SET SCHEMA name
@@ -6741,6 +6907,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_EXTENSION;
n->object = $3;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER FUNCTION function_with_argtypes SET SCHEMA name
@@ -6750,6 +6917,7 @@ AlterObjectSchemaStmt:
n->object = $3->funcname;
n->objarg = $3->funcargs;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER OPERATOR any_operator oper_argtypes SET SCHEMA name
@@ -6759,6 +6927,7 @@ AlterObjectSchemaStmt:
n->object = $3;
n->objarg = $4;
n->newschema = $7;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER OPERATOR CLASS any_name USING access_method SET SCHEMA name
@@ -6768,6 +6937,7 @@ AlterObjectSchemaStmt:
n->object = $4;
n->addname = $6;
n->newschema = $9;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER OPERATOR FAMILY any_name USING access_method SET SCHEMA name
@@ -6777,6 +6947,7 @@ AlterObjectSchemaStmt:
n->object = $4;
n->addname = $6;
n->newschema = $9;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TABLE relation_expr SET SCHEMA name
@@ -6785,6 +6956,16 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_TABLE;
n->relation = $3;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TABLE IF_P EXISTS relation_expr SET SCHEMA name
{
AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
n->objectType = OBJECT_TABLE;
n->relation = $5;
n->newschema = $8;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER TEXT_P SEARCH PARSER any_name SET SCHEMA name
@@ -6793,6 +6974,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_TSPARSER;
n->object = $5;
n->newschema = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TEXT_P SEARCH DICTIONARY any_name SET SCHEMA name
@@ -6801,6 +6983,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_TSDICTIONARY;
n->object = $5;
n->newschema = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TEXT_P SEARCH TEMPLATE any_name SET SCHEMA name
@@ -6809,6 +6992,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_TSTEMPLATE;
n->object = $5;
n->newschema = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER TEXT_P SEARCH CONFIGURATION any_name SET SCHEMA name
@@ -6817,6 +7001,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_TSCONFIGURATION;
n->object = $5;
n->newschema = $8;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER SEQUENCE qualified_name SET SCHEMA name
@@ -6825,6 +7010,16 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_SEQUENCE;
n->relation = $3;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER SEQUENCE IF_P EXISTS qualified_name SET SCHEMA name
{
AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
n->objectType = OBJECT_SEQUENCE;
n->relation = $5;
n->newschema = $8;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER VIEW qualified_name SET SCHEMA name
@@ -6833,6 +7028,16 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_VIEW;
n->relation = $3;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER VIEW IF_P EXISTS qualified_name SET SCHEMA name
{
AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
n->objectType = OBJECT_VIEW;
n->relation = $5;
n->newschema = $8;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER FOREIGN TABLE relation_expr SET SCHEMA name
@@ -6841,6 +7046,16 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_FOREIGN_TABLE;
n->relation = $4;
n->newschema = $7;
n->missing_ok = false;
$$ = (Node *)n;
}
| ALTER FOREIGN TABLE IF_P EXISTS relation_expr SET SCHEMA name
{
AlterObjectSchemaStmt *n = makeNode(AlterObjectSchemaStmt);
n->objectType = OBJECT_FOREIGN_TABLE;
n->relation = $6;
n->newschema = $9;
n->missing_ok = true;
$$ = (Node *)n;
}
| ALTER TYPE_P any_name SET SCHEMA name
@@ -6849,6 +7064,7 @@ AlterObjectSchemaStmt:
n->objectType = OBJECT_TYPE;
n->object = $3;
n->newschema = $6;
n->missing_ok = false;
$$ = (Node *)n;
}
;

10
src/backend/parser/parse_utilcmd.c
View File

@@ -2283,7 +2283,15 @@ transformAlterTableStmt(AlterTableStmt *stmt, const char *queryString)
* new commands we add after this must not upgrade the lock level
* requested here.
*/
rel = relation_openrv(stmt->relation, lockmode);
rel = relation_openrv_extended(stmt->relation, lockmode, stmt->missing_ok);
if (rel == NULL)
{
/* this message is consistent with relation_openrv */
ereport(NOTICE,
(errmsg("relation \"%s\" does not exist, skipping",
stmt->relation->relname)));
return NIL;
}
/* Set up pstate and CreateStmtContext */
pstate = make_parsestate(NULL);