diff options
Diffstat (limited to 'src/test/regress/sql/strings.sql')
| -rw-r--r-- | src/test/regress/sql/strings.sql | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/src/test/regress/sql/strings.sql b/src/test/regress/sql/strings.sql index 37c0893ae83..d8a09737668 100644 --- a/src/test/regress/sql/strings.sql +++ b/src/test/regress/sql/strings.sql @@ -678,6 +678,30 @@ SELECT substr(f1, 5, 10) AS f1_data, substr(f2, 5, 10) AS f2_data FROM toasttest; SELECT pg_column_compression(f1) AS f1_comp, pg_column_compression(f2) AS f2_comp FROM toasttest; +TRUNCATE toasttest; +-- test with inline compressible varlenas. +SET default_toast_compression = 'pglz'; +ALTER TABLE toasttest ALTER COLUMN f1 SET STORAGE MAIN; +ALTER TABLE toasttest ALTER COLUMN f2 SET STORAGE MAIN; +INSERT INTO toasttest values(repeat('1234', 1024), repeat('5678', 1024)); +-- There should be no values in the toast relation. +SELECT substr(f1, 5, 10) AS f1_data, substr(f2, 5, 10) AS f2_data + FROM toasttest; +SELECT pg_column_compression(f1) AS f1_comp, pg_column_compression(f2) AS f2_comp + FROM toasttest; +SELECT count(*) FROM :reltoastname; +TRUNCATE toasttest; +-- test with external compressed data (default). +ALTER TABLE toasttest ALTER COLUMN f1 SET STORAGE EXTENDED; +ALTER TABLE toasttest ALTER COLUMN f2 SET STORAGE EXTENDED; +INSERT INTO toasttest values(repeat('1234', 10240), NULL); +-- There should be one value in the toast relation. +SELECT substr(f1, 5, 10) AS f1_data, substr(f2, 5, 10) AS f2_data + FROM toasttest; +SELECT pg_column_compression(f1) AS f1_comp, pg_column_compression(f2) AS f2_comp + FROM toasttest; +SELECT count(*) FROM :reltoastname WHERE chunk_seq = 0; +RESET default_toast_compression; DROP TABLE toasttest; -- |