Ceph » rgw

Gal Salomon wrote:

upon processing TPCDS benchmark
the RGW had crashed on segfault.
the s3select-parser(boost-spirit) accesses "bad" memory.

the query is
"SELECT s._1, s._7 FROM S3Object s WHERE (case s._7 when '' then null else CAST end = 2000);"

(*) seems like the parser does not accept correctly capital characters in CAST statement.

the crash is caused by "skipping" data-type upon the parsing stage (for CAST operator)
the engine failed to identify the data-type(wrong comparison), thus did not push that data-type into parser-stack.