diff options
| -rw-r--r-- | contrib/auto_explain/Makefile | 2 | ||||
| -rw-r--r-- | contrib/auto_explain/expected/alter_reset.out | 17 | ||||
| -rw-r--r-- | contrib/auto_explain/sql/alter_reset.sql | 20 | ||||
| -rw-r--r-- | src/backend/utils/misc/guc.c | 14 |
4 files changed, 49 insertions, 4 deletions
diff --git a/contrib/auto_explain/Makefile b/contrib/auto_explain/Makefile index efd127d3cae..94ab28e7c06 100644 --- a/contrib/auto_explain/Makefile +++ b/contrib/auto_explain/Makefile @@ -6,6 +6,8 @@ OBJS = \ auto_explain.o PGFILEDESC = "auto_explain - logging facility for execution plans" +REGRESS = alter_reset + TAP_TESTS = 1 ifdef USE_PGXS diff --git a/contrib/auto_explain/expected/alter_reset.out b/contrib/auto_explain/expected/alter_reset.out new file mode 100644 index 00000000000..49317c76561 --- /dev/null +++ b/contrib/auto_explain/expected/alter_reset.out @@ -0,0 +1,17 @@ +-- +-- This tests resetting unknown custom GUCs with reserved prefixes. There's +-- nothing specific to auto_explain; this is just a convenient place to put +-- this test. +-- +SELECT current_database() AS datname \gset +CREATE ROLE regress_ae_role; +ALTER DATABASE :"datname" SET auto_explain.bogus = 1; +ALTER ROLE regress_ae_role SET auto_explain.bogus = 1; +ALTER ROLE regress_ae_role IN DATABASE :"datname" SET auto_explain.bogus = 1; +LOAD 'auto_explain'; +WARNING: invalid configuration parameter name "auto_explain.bogus", removing it +DETAIL: "auto_explain" is now a reserved prefix. +ALTER DATABASE :"datname" RESET auto_explain.bogus; +ALTER ROLE regress_ae_role RESET auto_explain.bogus; +ALTER ROLE regress_ae_role IN DATABASE :"datname" RESET auto_explain.bogus; +DROP ROLE regress_ae_role; diff --git a/contrib/auto_explain/sql/alter_reset.sql b/contrib/auto_explain/sql/alter_reset.sql new file mode 100644 index 00000000000..3c472755d6a --- /dev/null +++ b/contrib/auto_explain/sql/alter_reset.sql @@ -0,0 +1,20 @@ +-- +-- This tests resetting unknown custom GUCs with reserved prefixes. There's +-- nothing specific to auto_explain; this is just a convenient place to put +-- this test. +-- + +SELECT current_database() AS datname \gset +CREATE ROLE regress_ae_role; + +ALTER DATABASE :"datname" SET auto_explain.bogus = 1; +ALTER ROLE regress_ae_role SET auto_explain.bogus = 1; +ALTER ROLE regress_ae_role IN DATABASE :"datname" SET auto_explain.bogus = 1; + +LOAD 'auto_explain'; + +ALTER DATABASE :"datname" RESET auto_explain.bogus; +ALTER ROLE regress_ae_role RESET auto_explain.bogus; +ALTER ROLE regress_ae_role IN DATABASE :"datname" RESET auto_explain.bogus; + +DROP ROLE regress_ae_role; diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c index e5600862d7f..abfc581171a 100644 --- a/src/backend/utils/misc/guc.c +++ b/src/backend/utils/misc/guc.c @@ -11821,6 +11821,7 @@ validate_option_array_item(const char *name, const char *value, { struct config_generic *gconf; + bool reset_custom; /* * There are three cases to consider: @@ -11839,16 +11840,21 @@ validate_option_array_item(const char *name, const char *value, * it's assumed to be fully validated.) * * name is not known and can't be created as a placeholder. Throw error, - * unless skipIfNoPermissions is true, in which case return false. + * unless skipIfNoPermissions or reset_custom is true. If reset_custom is + * true, this is a RESET or RESET ALL operation for an unknown custom GUC + * with a reserved prefix, in which case we want to fall through to the + * placeholder case described in the preceding paragraph (else there'd be + * no way for users to remove them). Otherwise, return false. */ - gconf = find_option(name, true, skipIfNoPermissions, ERROR); - if (!gconf) + reset_custom = (!value && valid_custom_variable_name(name)); + gconf = find_option(name, true, skipIfNoPermissions || reset_custom, ERROR); + if (!gconf && !reset_custom) { /* not known, failed to make a placeholder */ return false; } - if (gconf->flags & GUC_CUSTOM_PLACEHOLDER) + if (!gconf || gconf->flags & GUC_CUSTOM_PLACEHOLDER) { /* * We cannot do any meaningful check on the value, so only permissions |