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Support RETURNING for modification commands. 

Fixes: #242
pull/578/head
Andres Freund 2016-06-22 14:36:36 -07:00
parent c38c1adce1
commit cccba66f24
5 changed files with 15 additions and 37 deletions
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8
src/backend/distributed/master/master_modify_multiple_shards.c
View File

@ -116,6 +116,14 @@ master_modify_multiple_shards(PG_FUNCTION_ARGS)
ErrorIfModifyQueryNotSupported(modifyQuery);
/* reject queries with a returning list */
if (list_length(modifyQuery->returningList) > 0)
{
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("master_modify_multiple_shards() does not support RETURNING")));
}
shardIntervalList = LoadShardIntervalList(relationId);
restrictClauseList = WhereClauseList(modifyQuery->jointree);

15
src/backend/distributed/planner/multi_router_planner.c
View File

@ -255,16 +255,6 @@ ErrorIfModifyQueryNotSupported(Query *queryTree)
"supported.")));
}
/* reject queries with a returning list */
if (list_length(queryTree->returningList) > 0)
{
ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
errmsg("cannot perform distributed planning for the given"
" modification"),
errdetail("RETURNING clauses are not supported in distributed "
"modifications.")));
}
if (commandType == CMD_INSERT || commandType == CMD_UPDATE ||
commandType == CMD_DELETE)
{
@ -298,6 +288,11 @@ ErrorIfModifyQueryNotSupported(Query *queryTree)
{
hasNonConstQualExprs = true;
}
if (contain_mutable_functions((Node *) queryTree->returningList))
{
hasNonConstTargetEntryExprs = true;
}
}
#if (PG_VERSION_NUM >= 90500)

13
src/test/regress/expected/multi_modifications.out
View File

@ -195,11 +195,6 @@ DETAIL: Multi-row INSERTs to distributed tables are not supported.
INSERT INTO limit_orders SELECT * FROM limit_orders;
ERROR: cannot perform distributed planning for the given modifications
DETAIL: Subqueries are not supported in distributed modifications.
-- commands with a RETURNING clause are unsupported
INSERT INTO limit_orders VALUES (7285, 'AMZN', 3278, '2016-01-05 02:07:36', 'sell', 0.00)
RETURNING *;
ERROR: cannot perform distributed planning for the given modification
DETAIL: RETURNING clauses are not supported in distributed modifications.
-- commands containing a CTE are unsupported
WITH deleted_orders AS (DELETE FROM limit_orders RETURNING *)
INSERT INTO limit_orders DEFAULT VALUES;
@ -244,10 +239,6 @@ DELETE FROM limit_orders USING bidders WHERE limit_orders.id = 246 AND
limit_orders.bidder_id = bidders.id AND
bidders.name = 'Bernie Madoff';
ERROR: cannot plan queries that include both regular and partitioned relations
-- commands with a RETURNING clause are unsupported
DELETE FROM limit_orders WHERE id = 246 RETURNING *;
ERROR: cannot perform distributed planning for the given modification
DETAIL: RETURNING clauses are not supported in distributed modifications.
-- commands containing a CTE are unsupported
WITH deleted_orders AS (INSERT INTO limit_orders DEFAULT VALUES RETURNING *)
DELETE FROM limit_orders;
@ -363,10 +354,6 @@ UPDATE limit_orders SET limit_price = 0.00 FROM bidders
limit_orders.bidder_id = bidders.id AND
bidders.name = 'Bernie Madoff';
ERROR: cannot plan queries that include both regular and partitioned relations
-- commands with a RETURNING clause are unsupported
UPDATE limit_orders SET symbol = 'GM' WHERE id = 246 RETURNING *;
ERROR: cannot perform distributed planning for the given modification
DETAIL: RETURNING clauses are not supported in distributed modifications.
-- commands containing a CTE are unsupported
WITH deleted_orders AS (INSERT INTO limit_orders DEFAULT VALUES RETURNING *)
UPDATE limit_orders SET symbol = 'GM';

6
src/test/regress/expected/multi_shard_modify.out
View File

@ -62,8 +62,7 @@ ERROR: cannot perform distributed planning for the given modification
DETAIL: Joins are not supported in distributed modifications.
-- commands with a RETURNING clause are unsupported
SELECT master_modify_multiple_shards('DELETE FROM multi_shard_modify_test WHERE t_key = 3 RETURNING *');
ERROR: cannot perform distributed planning for the given modification
DETAIL: RETURNING clauses are not supported in distributed modifications.
ERROR: master_modify_multiple_shards() does not support RETURNING
-- commands containing a CTE are unsupported
SELECT master_modify_multiple_shards('WITH deleted_stuff AS (INSERT INTO multi_shard_modify_test DEFAULT VALUES RETURNING *) DELETE FROM multi_shard_modify_test');
ERROR: cannot perform distributed planning for the given modification
@ -205,8 +204,7 @@ ERROR: cannot perform distributed planning for the given modification
DETAIL: Joins are not supported in distributed modifications.
-- commands with a RETURNING clause are unsupported
SELECT master_modify_multiple_shards('UPDATE multi_shard_modify_test SET t_name=''FAIL'' WHERE t_key=4 RETURNING *');
ERROR: cannot perform distributed planning for the given modification
DETAIL: RETURNING clauses are not supported in distributed modifications.
ERROR: master_modify_multiple_shards() does not support RETURNING
-- commands containing a CTE are unsupported
SELECT master_modify_multiple_shards('WITH t AS (INSERT INTO multi_shard_modify_test DEFAULT VALUES RETURNING *) UPDATE multi_shard_modify_test SET t_name = ''FAIL'' ');
ERROR: cannot perform distributed planning for the given modification

10
src/test/regress/sql/multi_modifications.sql
View File

@ -143,10 +143,6 @@ INSERT INTO limit_orders VALUES (DEFAULT), (DEFAULT);
-- INSERT ... SELECT ... FROM commands are unsupported
INSERT INTO limit_orders SELECT * FROM limit_orders;
-- commands with a RETURNING clause are unsupported
INSERT INTO limit_orders VALUES (7285, 'AMZN', 3278, '2016-01-05 02:07:36', 'sell', 0.00)
RETURNING *;
-- commands containing a CTE are unsupported
WITH deleted_orders AS (DELETE FROM limit_orders RETURNING *)
INSERT INTO limit_orders DEFAULT VALUES;
@ -174,9 +170,6 @@ DELETE FROM limit_orders USING bidders WHERE limit_orders.id = 246 AND
limit_orders.bidder_id = bidders.id AND
bidders.name = 'Bernie Madoff';
-- commands with a RETURNING clause are unsupported
DELETE FROM limit_orders WHERE id = 246 RETURNING *;
-- commands containing a CTE are unsupported
WITH deleted_orders AS (INSERT INTO limit_orders DEFAULT VALUES RETURNING *)
DELETE FROM limit_orders;
@ -275,9 +268,6 @@ UPDATE limit_orders SET limit_price = 0.00 FROM bidders
limit_orders.bidder_id = bidders.id AND
bidders.name = 'Bernie Madoff';
-- commands with a RETURNING clause are unsupported
UPDATE limit_orders SET symbol = 'GM' WHERE id = 246 RETURNING *;
-- commands containing a CTE are unsupported
WITH deleted_orders AS (INSERT INTO limit_orders DEFAULT VALUES RETURNING *)
UPDATE limit_orders SET symbol = 'GM';