diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/backend/commands/copyto.c | 13 | ||||
| -rw-r--r-- | src/test/regress/expected/copy.out | 12 | ||||
| -rw-r--r-- | src/test/regress/sql/copy.sql | 9 |
3 files changed, 29 insertions, 5 deletions
diff --git a/src/backend/commands/copyto.c b/src/backend/commands/copyto.c index 84a3f3879a8..f87e405351d 100644 --- a/src/backend/commands/copyto.c +++ b/src/backend/commands/copyto.c @@ -653,11 +653,14 @@ BeginCopyTo(ParseState *pstate, RelationGetRelationName(rel)), errhint("Try the COPY (SELECT ...) TO variant."))); else if (rel->rd_rel->relkind == RELKIND_MATVIEW) - ereport(ERROR, - (errcode(ERRCODE_WRONG_OBJECT_TYPE), - errmsg("cannot copy from materialized view \"%s\"", - RelationGetRelationName(rel)), - errhint("Try the COPY (SELECT ...) TO variant."))); + { + if (!RelationIsPopulated(rel)) + ereport(ERROR, + errcode(ERRCODE_FEATURE_NOT_SUPPORTED), + errmsg("cannot copy from unpopulated materialized view \"%s\"", + RelationGetRelationName(rel)), + errhint("Use the REFRESH MATERIALIZED VIEW command.")); + } else if (rel->rd_rel->relkind == RELKIND_FOREIGN_TABLE) ereport(ERROR, (errcode(ERRCODE_WRONG_OBJECT_TYPE), diff --git a/src/test/regress/expected/copy.out b/src/test/regress/expected/copy.out index 06bae8c61ae..8d5a06563c4 100644 --- a/src/test/regress/expected/copy.out +++ b/src/test/regress/expected/copy.out @@ -338,3 +338,15 @@ create foreign table copytest_foreign_table (a int) server copytest_server; copy copytest_foreign_table from stdin (freeze); ERROR: cannot perform COPY FREEZE on a foreign table rollback; +-- Tests for COPY TO with materialized views. +-- COPY TO should fail for an unpopulated materialized view +-- but succeed for a populated one. +CREATE MATERIALIZED VIEW copytest_mv AS SELECT 1 AS id WITH NO DATA; +COPY copytest_mv(id) TO stdout WITH (header); +ERROR: cannot copy from unpopulated materialized view "copytest_mv" +HINT: Use the REFRESH MATERIALIZED VIEW command. +REFRESH MATERIALIZED VIEW copytest_mv; +COPY copytest_mv(id) TO stdout WITH (header); +id +1 +DROP MATERIALIZED VIEW copytest_mv; diff --git a/src/test/regress/sql/copy.sql b/src/test/regress/sql/copy.sql index 3009bdfdf89..f0b88a23db8 100644 --- a/src/test/regress/sql/copy.sql +++ b/src/test/regress/sql/copy.sql @@ -366,3 +366,12 @@ copy copytest_foreign_table from stdin (freeze); 1 \. rollback; + +-- Tests for COPY TO with materialized views. +-- COPY TO should fail for an unpopulated materialized view +-- but succeed for a populated one. +CREATE MATERIALIZED VIEW copytest_mv AS SELECT 1 AS id WITH NO DATA; +COPY copytest_mv(id) TO stdout WITH (header); +REFRESH MATERIALIZED VIEW copytest_mv; +COPY copytest_mv(id) TO stdout WITH (header); +DROP MATERIALIZED VIEW copytest_mv; |