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Reject ANALYZE commands during VACUUM FULL or another ANALYZE.

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vacuum()'s static variable handling makes it non-reentrant; an ensuing
null pointer deference crashed the backend.  Back-patch to 9.0 (all
supported versions).
This commit is contained in:
Noah Misch
2015-01-07 22:33:58 -05:00
parent 39f2594ba5
commit e415b469b3
3 changed files with 33 additions and 4 deletions
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14
src/test/regress/expected/vacuum.out
View File

@ -60,12 +60,24 @@ VACUUM (FULL, FREEZE) vactst;
VACUUM (ANALYZE, FULL) vactst;
CREATE TABLE vaccluster (i INT PRIMARY KEY);
ALTER TABLE vaccluster CLUSTER ON vaccluster_pkey;
INSERT INTO vaccluster SELECT * FROM vactst;
CLUSTER vaccluster;
CREATE FUNCTION do_analyze() RETURNS VOID VOLATILE LANGUAGE SQL
AS 'ANALYZE pg_am';
CREATE FUNCTION wrap_do_analyze(c INT) RETURNS INT IMMUTABLE LANGUAGE SQL
AS 'SELECT $1 FROM do_analyze()';
CREATE INDEX ON vactst(wrap_do_analyze(i));
INSERT INTO vactst VALUES (1), (2);
ANALYZE vactst;
ERROR: ANALYZE cannot be executed from VACUUM or ANALYZE
CONTEXT: SQL function "do_analyze" statement 1
SQL function "wrap_do_analyze" statement 1
VACUUM FULL pg_am;
VACUUM FULL pg_class;
VACUUM FULL pg_database;
VACUUM FULL vaccluster;
VACUUM FULL vactst;
ERROR: ANALYZE cannot be executed from VACUUM or ANALYZE
CONTEXT: SQL function "do_analyze" statement 1
SQL function "wrap_do_analyze" statement 1
DROP TABLE vaccluster;
DROP TABLE vactst;

9
src/test/regress/sql/vacuum.sql
View File

@ -44,9 +44,16 @@ VACUUM (ANALYZE, FULL) vactst;
CREATE TABLE vaccluster (i INT PRIMARY KEY);
ALTER TABLE vaccluster CLUSTER ON vaccluster_pkey;
INSERT INTO vaccluster SELECT * FROM vactst;
CLUSTER vaccluster;
CREATE FUNCTION do_analyze() RETURNS VOID VOLATILE LANGUAGE SQL
AS 'ANALYZE pg_am';
CREATE FUNCTION wrap_do_analyze(c INT) RETURNS INT IMMUTABLE LANGUAGE SQL
AS 'SELECT $1 FROM do_analyze()';
CREATE INDEX ON vactst(wrap_do_analyze(i));
INSERT INTO vactst VALUES (1), (2);
ANALYZE vactst;
VACUUM FULL pg_am;
VACUUM FULL pg_class;
VACUUM FULL pg_database;