HP NonStop SQL/MX Messages Manual page 329

Executor Sort and Scratch File I/O Messages (10000
through 10199)
Recovery. None. This is an internal error. Do not attempt recovery. Contact your
service provider.
SQL 10153
10153 operator attempted to read data using a block number
that was not mapped to a scratch file.
Where,
operator is the SQL/MX query operator that encountered the error; for example:
merge join.
Cause. The mapping of data blocks to scratch files is incomplete.
Effect. The operation fails.
Recovery. None. This is an internal error. Do not attempt recovery. Contact your
service provider.
HP NonStop SQL/MX Messages Manual—640324-001
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Scratch File I/O Messages