Обсуждение: pgsql: Fix segmentation fault in MergeInheritedAttribute()
Fix segmentation fault in MergeInheritedAttribute() While converting a pg_attribute tuple into a ColumnDef, ColumnDef::compression remains NULL if there is no compression method set fot the attribute. Calling strcmp() with NULL ColumnDef::compression, when comparing compression methods of parents, causes segmentation fault in MergeInheritedAttribute(). Skip comparing compression methods if either of them is NULL. Author: Ashutosh Bapat <ashutosh.bapat@enterprisedb.com> Reported-by: Alexander Lakhin <exclusion@gmail.com> Discussion: https://www.postgresql.org/message-id/b22a6834-aacb-7b18-0424-a3f5fe889667%40gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/8f0a97dfffc5b5f48f609fb894befcdf761dd576 Modified Files -------------- src/backend/commands/tablecmds.c | 16 ++++++++++------ src/test/regress/expected/compression.out | 10 +++++++--- src/test/regress/sql/compression.sql | 8 +++++--- 3 files changed, 22 insertions(+), 12 deletions(-)